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ЦитироватьPeter B. de Selding‏ @pbdes (https://twitter.com/pbdes) · 20 minutes ago (https://twitter.com/pbdes/status/860475199250206721)

BulgariaSat-1 to launch in June w/ @SpaceX (https://twitter.com/SpaceX) 1st stage flown on @IridiumComm (https://twitter.com/IridiumComm) Jan. flight; Falcon tempo is accelerating.

ЦитироватьA U.S.-built, Bulgarian-owned broadcast satellite will launch in mid-June from the Kennedy Space Center in Florida aboard a previously-used SpaceX Falcon 9 booster that first flew in January, the spacecraft's owner said Friday.

The BulgariaSat 1 satellite will be the second mission to launch on one of SpaceX's recovered first stage boosters, after the SES 10 communications craft became the first payload to fly on a reused commercial rocket March 30.

In a statement, BulgariaSat chief executive Maxim Zayakov said that reusable rockets were a technological breakthrough that will make it possible for smaller countries and companies to launch their own satellites.

"Elon Musk and his SpaceX team have convinced me that people like them bring us closer to a new quality of life through providing access to cutting-edge technology," Zayakov said in a statement. "This is a chance for Bulgaria to join the efforts to develop these new aspects of space industry."

BulgariaSat said the spacecraft will lift off with the same Falcon 9 first stage booster that flew Jan. 14 on a launch from Vandenberg Air Force Base in California. That mission carried 10 satellites into orbit for Iridium's next-generation mobile voice and data relay network.

/.../

BulgariaSat did not disclose whether it received any discount for switching from a new Falcon 9 rocket to a perviously-flown vehicle. Industry sources previously said BulgariaSat 1 recently moved ahead of other payloads in the Falcon 9 manifest, perhaps in exchange for an agreement to launch on a reused booster.

BulgariaSat 1 will provide television broadcasts and other communications services to the Balkans and other European regions. The spacecraft should enter service in geostationary orbit around a month after launch.

ЦитироватьSOFIA (Bulgaria), April 21 (SeeNews) - Bulgarian telecommunications company Bulsatcom said on Friday its geostationary communications satellite, BulgariaSat-1 - the country's first - has successfully completed all major assembly and test procedures at Space Systems/Loral (SSL) in Palo Alto, California.

"We are now proceeding to the satellite's shipment to the launch base," Maxim Zayakov, CEO of Bulsatcom and its affiliate Bulgaria Sat, said in a statement. "Currently, we are at the stage of planning of launch window."

Спойлер

Before preparations for shipment began, SSL and Bulgaria Sat technicians performed several final checks on BulgariaSat-1, including a test designed to simulate the satellite's solar array deployments in the zero-gravity environment of space, final integration and test of the satellite's reflectors, and other important tests to ensure that the satellite will perform nominally during its design life, according to the statement.

At the launch base in Cape Canaveral, Florida the satellite will be integrated into a SpaceX's Falcon 9 rocket which will take it into orbit. BulgariaSat-1 will be positioned into orbit at 36,000 km above the Earth, providing television and communication services covering the Balkans and other European regions. Within 30 days of the launch, the satellite will be operationally ready to broadcast a large number of high quality TV programmes to end-users.

Bulsatcom is a leading telecommunications company and the largest pay-TV services provider in Bulgaria.

[свернуть]

ЦитироватьВ середине июня на орбиту отправится болгарский вещательный спутник. Его владельцы уже договорились со SpaceX о транспорте: это будет первая ступень Falcon 9, которая осуществила первый для себя пуск в январе этого года. Для SpaceX это станет вторым коммерческим запуском «бэушной» ракеты-носителя.

В заявлении BulgariaSat говорится, что многоразовые ракеты стали технологическим прорывом, который позволит маленьким странам и компаниям обзавестись их собственными спутниками. Болгарский будет обеспечивать Балканы и Европу телевизионным вещанием.

Первый запуск восстановленной первой ступени прошел 30 марта, когда Falcon 9 вывел на орбиту коммуникационный спутник SES-10. После чего первая ступень во второй раз успешно приземлилась на автоматической плавучей платформе.

Запуск Falcon 9 оценивают в $62 млн. Те же, кто решается лететь на «бэушной» ракете, получают существенную скидку. Илон Маск не раскрывает ее, но утверждает, что по итогу запуск обходится клиенту намного дешевле.

ЦитироватьIndustry sources previously said BulgariaSat 1 recently moved ahead of other payloads in the Falcon 9 manifest, perhaps in exchange for an agreement to launch on a reused booster.

Цитировать2016 
September 3 - AMOS 6 - Falcon 9-029 - Canaveral SLC-40 - 07:00-09:00 
September 20 - Iridium Next Flight 1 (x10) - Falcon 9-030 - Vandenberg SLC-4E - 04:49 
mid-October - SES-10 - Falcon 9 - Canaveral SLC-40 
NET late October - FORMOSAT 5, SHERPA SSO: eXCITe (PTB 1), 2x Blacksky Global Pathfinder, Spire CubeSat (x20), Arkyd-6A, CNUSail 1, KAUSAT 5, SIGMA (KHUSAT 3), CANYVAL-X 1, CANYVAL-X 2, STEP Cube Lab, EcAMSat, ISARA, OCSD B, OCSD C, Fox 1C, Fox 1D, Nayif 1, skCUBE, ITASAT 1, Aalto 1, DIDO 1, 3Cat 1, CAT1, LMPC (AeroCube 9), ROBUSTA 1B, SUCHAI, CubeSats (x41) - Falcon 9 - Vandenberg SLC-4E 
November 11 - Dragon SpX-10 (CRS-10), SAGE-III, SAGE NVP, STP-H5/ISEM - Falcon 9 - Canaveral SLC-40 ~ 05:00 
November - Echostar 23 - Falcon 9 - Canaveral SLC-40 
November - SES-11 (EchoStar 105) - Falcon 9 - Canaveral SLC-40 
November - KoreaSat 5A/Mugungwha 5A - Falcon 9 - Canaveral SLC-40 (or 2017) 
NET late December - Iridium Next Flight 2 (x10) - Falcon 9 - Vandenberg SLC-4E 
year end - BulgariaSat 1 - Falcon 9 - Canaveral SLC-40 (or 2017) 

ЦитироватьSeptember 1 - AMOS 6 - Falcon 9-029 - Canaveral SLC-40 (destroyed оn launch pad during static fire preparations) 
2017
№ – Date - Satellite(s) - Rocket - Launch Site - Time (UTC) 
01 - January 14 - Iridium Next Flight 1 (x10) - Falcon 9-030 - Vandenberg SLC-4E - 17:54:39 
03 - February 19 - Dragon SpX-10 (CRS-10), SAGE-III, SAGE NVP, STP-H5/ISEM - Falcon 9-032 - Kennedy LC-39A - 14:39:00 
05 - March 16 - Echostar 23 - Falcon 9-031 - Kennedy LC-39A - 06:00 
07 - March 30 - SES-10 - Falcon 9 (with reused 1st stage S1021) - Kennedy LC-39A - 22:27 
09 - May 1 - NROL-76 (USA-276) - Falcon 9-034 - Kennedy LC-39A - 11:15 

Scheduled: 
Date - Satellite(s) - Rocket - Launch Site - Time (UTC) 
2017 
NET May 15 - Inmarsat 5 F4 - Falcon 9 - Kennedy LC-39A - 23:20:46-00:10:16 
NET May 31 June 1 - Dragon SpX-11 (CRS-11), ROSA, MUSES, NICER - Falcon 9 - Kennedy LC-39A - 21:55 
June 29 - Iridium Next Flight 2 (x10) - Falcon 9 - Vandenberg SLC-4E - 20:02 
NET late-June - Intelsat 35e - Falcon 9 - Kennedy LC-39A 
NET June - BulgariaSat 1 - Falcon 9 - Kennedy LC-39A 
NET June - SES-11 (EchoStar 105) - Falcon 9 - Kennedy LC-39A 

Цитировать2017
NET May 15 - Inmarsat 5 F4 - Falcon 9 - Kennedy LC-39A - 23:20:46-00:10:16
NET  June 1 - Dragon SpX-11 (CRS-11), ROSA, MUSES, NICER - Falcon 9 - Kennedy LC-39A - 21:55
NET mid-June - BulgariaSat 1 - Falcon 9 (reused 1st stage S1029) - Kennedy LC-39A
June 29 - Iridium Next Flight 2 (x10) - Falcon 9 - Vandenberg SLC-4E - 20:02
July 22 - FORMOSAT 5 - Falcon 9 - Vandenberg SLC-4E
July - KoreaSat 5A (Mugungwha 5A) - Falcon 9 - Kennedy LC-39A
NET July - Intelsat 35e - Falcon 9 - Kennedy LC-39A
NET July - SES-11 (EchoStar 105) - Falcon 9 - Kennedy LC-39A

ЦитироватьJune 15 Falcon 9 • BulgariaSat 1

ЦитироватьReuse of the IridiumNEXT 1-10 core will mark just five months between the stage's two missions, more than halving the total amount of time between reflights of the SES-10 core.

Importantly, however, the total amount of time spent refurbishing the two cores is understood to be roughly the same at about four months.

Цитировать (https://img.novosti-kosmonavtiki.ru/186040.jpg) Chris B - NSF‏ @NASASpaceflight (https://twitter.com/NASASpaceflight) 16 мин. назад (https://twitter.com/NASASpaceflight/status/862978095929856000)

BulgariaSat-1 has arrived at the Cape for a June launch on a SpaceX Falcon 9 https://forum.nasaspaceflight.com/index.php?topic=42913.msg1677180#msg1677180 ... (https://t.co/opjPYCBKZ2)
(https://img.novosti-kosmonavtiki.ru/158574.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/186040.jpg) Chris B - NSF‏ @NASASpaceflight (https://twitter.com/NASASpaceflight) 7 мин. назад (https://twitter.com/NASASpaceflight/status/872198340771024897)

SpaceX Falcon 9 launch with BulgariaSat-1 from 39A now NET June 17, Static Fire NET June 13. CRS-11 two-day weather slip was the impact.
(https://img.novosti-kosmonavtiki.ru/163087.jpg)
(https://img.novosti-kosmonavtiki.ru/163086.jpg)

Цитировать‏ @CwG_NSF 3 мин. назад (https://twitter.com/CwG_NSF/status/872201046487158784)

The realigned dates for #Bulgariasat (https://twitter.com/hashtag/Bulgariasat?src=hash) on #Falcon9 (https://twitter.com/hashtag/Falcon9?src=hash) for #SpaceX (https://twitter.com/hashtag/SpaceX?src=hash). Static Fire, 13 June. Launch No Earlier Than Saturday, 17 June at 14:18 EDT.

Цитировать‏ @CwG_NSF 11 мин. назад (https://twitter.com/CwG_NSF/status/872202344045441024)

They changed times on me. Tricky Tricky. Launch is at 14:10 EDT on NET 17 June. #Bulgariasat (https://twitter.com/hashtag/Bulgariasat?src=hash) #Falcon9 (https://twitter.com/hashtag/Falcon9?src=hash) #SpaceX (https://twitter.com/hashtag/SpaceX?src=hash)

Цитировать (https://img.novosti-kosmonavtiki.ru/69029.jpg) SpaceX‏Подлинная учетная запись @SpaceX (https://twitter.com/SpaceX) 3 мин. назад (https://twitter.com/SpaceX/status/872455800177831936)

Hours after CRS-11 lifted off, this flight-proven booster rolled into the hangar at 39A; targeting June 17 launch of BulgariaSat-1.
(https://img.novosti-kosmonavtiki.ru/163155.jpg)

Цитироватьtnt22 пишет:
Bulgariasat launch realigns; SpaceX secures X-37B launch contract (https://www.nasaspaceflight.com/2017/06/bulgariasat-launch-spacex-secures-x-37b-contract/)

ЦитироватьGeorgea пишет: 
Вон они как уже заговорили...  :o  Два пуска в месяц - это уже фигня, к которой несложно добавить еще один.

Цитировать (https://img.novosti-kosmonavtiki.ru/186015.jpg) Stephen C. Smith‏ @SpaceKSCBlog (https://twitter.com/SpaceKSCBlog) 5 ч. назад (https://twitter.com/SpaceKSCBlog/status/873560947285254144)

I spy with my @SpaceX (https://twitter.com/SpaceX) eye.
(https://img.novosti-kosmonavtiki.ru/162857.jpg)

Цитировать (https://pbs.twimg.com/profile_images/698664539873796096/Iw28Zwrx_bigger.jpg) Brady Kenniston‏ @TheFavoritist (https://twitter.com/TheFavoritist) 42 мин. назад (https://twitter.com/TheFavoritist/status/874359051454427136)

@NASASpaceflight (https://twitter.com/NASASpaceflight) Got a good look at everything at LC-39A today! One more tweet after this and have a lot going to L2 and public soon.
(https://img.novosti-kosmonavtiki.ru/163484.jpg)
(https://img.novosti-kosmonavtiki.ru/163485.jpg)
(https://img.novosti-kosmonavtiki.ru/163486.jpg)

Цитировать (https://pbs.twimg.com/profile_images/698664539873796096/Iw28Zwrx_bigger.jpg) Brady Kenniston‏ @TheFavoritist (https://twitter.com/TheFavoritist) 42 мин. назад (https://twitter.com/TheFavoritist/status/874359194798960640)

@NASASpaceflight (https://twitter.com/NASASpaceflight) and now RSS/FSS
(https://img.novosti-kosmonavtiki.ru/163489.jpg)
(https://img.novosti-kosmonavtiki.ru/163488.jpg)
(https://img.novosti-kosmonavtiki.ru/163487.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/186040.jpg) Chris B - NSF‏ @NASASpaceflight (https://twitter.com/NASASpaceflight) 2 мин. назад (https://twitter.com/NASASpaceflight/status/874369214609575937)

And I'll RT these to note it's now official: Static Fire for Falcon 9 with Bulgariasat-1 now Wednesday. Launch date unaffected.

Цитировать (https://img.novosti-kosmonavtiki.ru/185971.jpg) 45th Space Wing‏ @45thSpaceWing (https://twitter.com/45thSpaceWing) 3 ч назад (https://twitter.com/45thSpaceWing/status/874366888800919554)

This Saturday from Pad 39A!
(https://img.novosti-kosmonavtiki.ru/163479.jpg)

Цитировать (https://pbs.twimg.com/profile_images/698664539873796096/Iw28Zwrx_bigger.jpg) Brady Kenniston‏ @TheFavoritist (https://twitter.com/TheFavoritist) 6 мин. назад (https://twitter.com/TheFavoritist/status/874771982486831104)

@NASASpaceflight (https://twitter.com/NASASpaceflight) @CwG_NSF (https://twitter.com/CwG_NSF) Of course I still love "Of Course I Still Love You." Also Go Searcher and Go Quest too.
(https://img.novosti-kosmonavtiki.ru/163569.jpg)
(https://img.novosti-kosmonavtiki.ru/163568.jpg)
(https://img.novosti-kosmonavtiki.ru/163567.jpg)
(https://img.novosti-kosmonavtiki.ru/163570.jpg)

ЦитироватьИскандер пишет:
Баржу покрасить слабо? ПозжеЕ и ступени мыть перестанут, на свой констеляшн так точно.
               
                  

Цитироватьdfln пишет:
подлец Маск, даже на коаске экономит"

ЦитироватьMax Andriyahov пишет:
О, а вот и робот) Будет интересно. Но видео наверное сразу не покажут. Если вообще покажут. Но фото при входе в порт точно будут.

ЦитироватьА робот-то что такой ржавый? Он же еще ничего полезного и не сделал.

ЦитироватьStatic Fire now Thursday evening. No word of any issues, just likely a tight flow and they aren't going to rush things (obviously). No official word on the launch date moving to Sunday, but it's clearly going to be a watch item as it's now tight, per conducting the test, detanking, safing, TEL to horizontal, rollback, mate the stack and get back out on the pad.

ЦитироватьApollo13 (http://novosti-kosmonavtiki.ru/forum/user/16811/) пишет:
SF в четверг вечером. Пуск вряд-ли раньше воскресенья.

Цитироватьdfln пишет: 

Теперь будут слышны фразы "зато у нас ступени чистые", "а вот мы не используем некрашенные баржи" и "подлец Маск, даже на коаске экономит"

Цитировать (https://img.novosti-kosmonavtiki.ru/186040.jpg) Chris B - NSF‏ @NASASpaceflight (https://twitter.com/NASASpaceflight) 38 мин. назад (https://twitter.com/NASASpaceflight/status/875100763336450048)

SpaceX Falcon 9 launch (BulgariaSat-1) is now NET June 19 (Request to Eastern Range). Static Fire still NET Thursday. @TheFavoritist (https://twitter.com/TheFavoritist) photo.
(https://img.novosti-kosmonavtiki.ru/163643.jpg)

ЦитироватьЧебурашка пишет:
Первый раз прочёл: "Подлец Маск даже на коксе экономит"

ЦитироватьPeter B. de Selding‏ @pbdes (https://twitter.com/pbdes)  4 hours ago (https://twitter.com/pbdes/status/875198527948849157)

@IridiumBoss (https://twitter.com/IridiumBoss): Cool Bulgaria/ @SpaceX (https://twitter.com/SpaceX) using stage from @IridiumComm (https://twitter.com/IridiumComm) launch. We'd do the same -- with a big discount.

Цитироватьche wi пишет:
@IridiumBoss (https://twitter.com/IridiumBoss) : Cool Bulgaria/ @SpaceX (https://twitter.com/SpaceX) using stage from @IridiumComm (https://twitter.com/IridiumComm) launch. We'd do the same -- with a big discount.

ЦитироватьGeorgea пишет:

Цитироватьche wi пишет:
 @IridiumBoss (https://twitter.com/IridiumBoss) : Cool Bulgaria/ @SpaceX (https://twitter.com/SpaceX) using stage from @IridiumComm (https://twitter.com/IridiumComm) launch. We'd do the same -- with a big discount.

Это означает, что они собираются это сделать и договорились о большой скидке, или что сделают ЕСЛИ им дадут большую скидку?

ЦитироватьSpaceflight Now‏ @SpaceflightNow (https://twitter.com/SpaceflightNow)  3m3 minutes ago (https://twitter.com/SpaceflightNow/status/875333939291983873)

A Falcon 9 rocket is standing tall at launch complex 39A this morning in readiness for a routine pre-flight engine test.


(https://img.novosti-kosmonavtiki.ru/163679.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/186040.jpg) Chris B - NSF‏ @NASASpaceflight (https://twitter.com/NASASpaceflight) 8 мин. назад (https://twitter.com/NASASpaceflight/status/875363579859435520)

Test window opens at 6 pm Eastern, runs through to midnight. Article next....using photos from Brady. (https://img.novosti-kosmonavtiki.ru/125484.png)(https://img.novosti-kosmonavtiki.ru/125382.png)

Цитировать (https://pbs.twimg.com/profile_images/698664539873796096/Iw28Zwrx_bigger.jpg) Brady Kenniston‏ @TheFavoritist (https://twitter.com/TheFavoritist) 16 мин. назад (https://twitter.com/TheFavoritist/status/875361718083485696)

@NASASpaceflight (https://twitter.com/NASASpaceflight) Falcon 9 is vertical for today's static fire attempt.
(https://img.novosti-kosmonavtiki.ru/163676.jpg)

Спойлер

(https://img.novosti-kosmonavtiki.ru/163675.jpg)
(https://img.novosti-kosmonavtiki.ru/163677.jpg)
(https://img.novosti-kosmonavtiki.ru/163678.jpg)

[свернуть]

Цитировать (https://img.novosti-kosmonavtiki.ru/185971.jpg) 45th Space Wing‏ @45thSpaceWing (https://twitter.com/45thSpaceWing) 2 ч. назад (https://twitter.com/45thSpaceWing/status/875396160307044352)

(https://pbs.twimg.com/media/DCYIKjXWsAEYLhl.jpg)

Цитировать06/15/2017 17:30 (https://img.novosti-kosmonavtiki.ru/196244.png)  (http://24liveblog.com/share/196826847?url=https://v.24liveblog.com/live/?id=1394624)
The Falcon 9 rocket for SpaceX's next launch rolled out to pad 39A at NASA's Kennedy Space Center and was raised vertical overnight in preparation for a hold-down engine firing as soon as this evening.

Спойлер

The previously-flown first stage and newly-manufactured second stage will be filled with super-chilled RP-1 kerosene and liquid oxygen propellants during a mock countdown that will culminate in ignition of the booster's nine Merlin 1D main engines.

The commercial rocket is set to launch BulgariaSat 1, Bulgaria's first communications satellite, no earlier than Monday at 2:10 p.m. EDT (1810 GMT). The launch window extends two hours.

Built by Space Systems/Loral in Palo Alto, California, BulgariaSat 1 will provide direct-to-home television broadcasts over Bulgaria, Serbia and neighboring parts of the Balkans. Its 30 Ku-band transponders will reach customers across Europe during the satellite's 15-year mission lifetime.

Monday's launch will be the second SpaceX flight with a previously-used first stage, coming after the March 30 liftoff of an SES communications satellite on a recycled booster. The first stage slated to launch BulgariaSat 1 first flew Jan. 14 in a launch from Vandenberg Air Force Base in California.

SpaceX will attempt to recover the first stage on a floating landing target deployed in the Atlantic Ocean east of Cape Canaveral.

The upcoming launch will be SpaceX's eighth Falcon 9 flight of the year.

[свернуть]

Цитировать (https://img.novosti-kosmonavtiki.ru/186040.jpg) Chris B - NSF‏ @NASASpaceflight (https://twitter.com/NASASpaceflight) 7 мин. назад (https://twitter.com/NASASpaceflight/status/875458996295000064)

Falcon 9 (BulgariaSat-1) Static Fire: LC-39 area is still under a Phase 1 Lightning Warning..

Цитировать06/16/2017 00:05 (https://img.novosti-kosmonavtiki.ru/196244.png)  (http://24liveblog.com/share/196828436?url=https://v.24liveblog.com/live/?id=1394624)
Vapors are visible near the Falcon 9 rocket at pad 39A, suggesting that fueling of the launcher has begun.

RP-1 kerosene fuel will be loaded into the two-stage rocket first, followed by cryogenic liquid oxygen. Today's static fire window opens at 6 p.m. EDT (2200 GMT), and the countdown appears to be on track for a hotfire attempt near that time.

SpaceX does not provide live updates on the status of static fire tests.

Цитировать06/16/2017 01:03 (https://img.novosti-kosmonavtiki.ru/196244.png)  (http://24liveblog.com/share/196828506?url=https://v.24liveblog.com/live/?id=1394624)
Today's static fire test window has opened, and the Falcon 9 rocket is being fueled for the hold-down engine test at pad 39A, but there is no sign of an imminent ignition. The Falcon 9's strongback tower is expected to slightly retract from the vehicle a few minutes before the static fire, and that milestone has not been observed yet.

Цитировать06/16/2017 01:21 (https://img.novosti-kosmonavtiki.ru/196244.png)  (http://24liveblog.com/share/196828517?url=https://v.24liveblog.com/live/?id=1394624)
The strongback structure at pad 39A is moving into position at an angle 1.5 degrees from the Falcon 9 rocket for engine start, an indication that the static fire could be moments away.

In the final minutes of the countdown, the Falcon 9 is switched to internal power, the Merlin engines are chilled down for ignition, and the propellant tanks on both stages are pressurized.
Hold-down clamps will keep the Falcon 9 firmly grounded for today's hotfire.

Цитировать (https://img.novosti-kosmonavtiki.ru/186040.jpg) Chris B - NSF‏ @NASASpaceflight (https://twitter.com/NASASpaceflight) 2 мин. назад (https://twitter.com/NASASpaceflight/status/875479388313309184)

STATIC FIRE! For SpaceX Falcon 9 (BulgariaSat-1) - Wait for SpaceX to confirm good test after quick look review.

Цитировать06/16/2017 01:27 (https://img.novosti-kosmonavtiki.ru/196244.png)  (http://24liveblog.com/share/196828527?url=https://v.24liveblog.com/live/?id=1394624)
The Falcon 9's nine Merlin 1D engines have ignited at pad 39A for several seconds. We'll await official confirmation from SpaceX that today's hotfire test went according to plan.

Цитировать (https://img.novosti-kosmonavtiki.ru/186040.jpg) Chris B - NSF‏ @NASASpaceflight (https://twitter.com/NASASpaceflight) 2 мин. назад (https://twitter.com/NASASpaceflight/status/875479629083103232)

And my (not totally accurate) count seemed like the full seven seconds (Seven due to previously flown booster).

Цитировать (https://img.novosti-kosmonavtiki.ru/67530.jpg) Spaceflight Now‏ @SpaceflightNow (https://twitter.com/SpaceflightNow) 1 мин. назад (https://twitter.com/SpaceflightNow/status/875480769162084352)

The Falcon 9 engines roared to life at 6:25pm EDT for prelaunch test fire: https://spaceflightnow.com/2017/06/15/bulgariasat-1-launch-preps/ ... (https://t.co/TMwVTwDhkS)
(https://img.novosti-kosmonavtiki.ru/163718.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/69029.jpg) SpaceX‏Подлинная учетная запись @SpaceX (https://twitter.com/SpaceX) 3 мин. назад (https://twitter.com/SpaceX/status/875484318449008641)

Static fire test of Falcon 9 complete—targeting June 19 launch of BulgariaSat-1 from historic Pad 39A
(https://img.novosti-kosmonavtiki.ru/163719.jpg)

Цитировать06/16/2017 01:49 (https://img.novosti-kosmonavtiki.ru/196244.png)  (http://24liveblog.com/share/196828542?url=https://v.24liveblog.com/live/?id=1394624)
SpaceX confirms a good static fire test this evening at Kennedy Space Center. Liftoff of the Falcon 9 rocket with BulgariaSat 1 remains on track for Monday at 2:10 p.m. EDT (1810 GMT).

Цитировать (https://pbs.twimg.com/profile_images/698664539873796096/Iw28Zwrx_bigger.jpg) Brady Kenniston‏ @TheFavoritist (https://twitter.com/TheFavoritist) 10 мин назад (https://twitter.com/TheFavoritist/status/875490675336335362)

@NASASpaceflight (https://twitter.com/NASASpaceflight) Great static fire! Go Falcon!
(https://img.novosti-kosmonavtiki.ru/163713.jpg)

Спойлер

(https://img.novosti-kosmonavtiki.ru/163711.jpg)
(https://img.novosti-kosmonavtiki.ru/163712.jpg)
(https://img.novosti-kosmonavtiki.ru/163710.jpg)

[свернуть]

ЦитироватьДимитър (http://novosti-kosmonavtiki.ru/forum/user/13843/) пишет:
Кстати, у меня на 16 день рождения.

Цитировать

LNM: 24/17

ATLANTIC OCEAN - FLORIDA - CAPE CANAVERAL: EASTERN RANGE OP # X5491 FALCON-9 BULGARIASAT-1
Eastern Range OP # X5491 FALCON-9 BULGARIASAT-1 will be conducting hazardous operations surface to unlimited within the following Launch
Hazard Areas.
 
A: From 2839N 8039W
TO 2841N 8036W
TO 2836N 7924W
TO 2831N 7924W
TO 2831N 8035W to beginning
 
B: From 2827N 7530W
TO 2826N 7112W
TO 2800N 7111W
TO 2748N 7215W
TO 2817N 7531W to beginning
 
Hazard periods for primary and backup launch day;
Primary: 19 / 1805Z thru 19 / 2101Z Jun 17. T-0 is 1810Z
Backup: 20 / 1805Z thru 20 / 2101Z Jun 17. T-0 is 1810Z
 

Цитировать

Цитировать@IridiumBoss (https://twitter.com/IridiumBoss) : Cool Bulgaria/ @SpaceX (https://twitter.com/SpaceX) using stage from @IridiumComm (https://twitter.com/IridiumComm) launch. We'd do the same -- with a big discount.

ЦитироватьЗловредный пишет:

Цитировать

Цитировать@IridiumBoss (https://twitter.com/IridiumBoss) : Cool Bulgaria/ @SpaceX (https://twitter.com/SpaceX) using stage from @IridiumComm (https://twitter.com/IridiumComm) launch. We'd do the same -- with a big discount.

Ишь, какой хитрый выискался! Проверенные носители должны стоить дороже!

ЦитироватьАтяпа пишет:

Цитировать...

Так они, небось, эту же хотят - она ж уже ими юзалась!

Цитироватьnapalm пишет:
Надо идти дальше - покупать ступени и давать S-X в аренду для запуска своего "железа"  :D

Цитировать (https://img.novosti-kosmonavtiki.ru/185527.jpg) NASA Kennedy / KSC‏Подлинная учетная запись @NASAKennedy (https://twitter.com/NASAKennedy) 35 мин. назад (https://twitter.com/NASAKennedy/status/875811386143772676)

Storm incoming! The three lightning arrestors surrounding Launch Pad 39B form a cage of protection around the rocket. @NASA_go4launch (https://twitter.com/NASA_go4launch)
(https://img.novosti-kosmonavtiki.ru/163439.jpg)

ЦитироватьJune 17, 2017

BulgariaSat-1 Mission Press Kit

SpaceX is targeting launch of BulgariaSat-1 from Launch Complex 39A (LC-39A) at NASA's Kennedy Space Center in Florida. The two-hour launch window opens on Monday, June 19, at 2:10 p.m. EDT, or 18:10 UTC, with a backup launch opportunity on Tuesday, June 20, at 2:10 p.m. EDT, or 18:10 UTC. BulgariaSat-1 is the first geostationary communications satellite in Bulgaria's history.

Falcon 9's first stage for the BulgariaSat-1 mission previously supported the Iridium-1 mission from Vandenberg Air Force Base in January of this year. Following stage separation, Falcon 9's first stage will attempt a landing on the "Of Course I Still Love You" droneship, which will be stationed in the Atlantic Ocean.

A mission press kit is available here (http://www.spacex.com/sites/spacex/files/bulgariasat1presskit.pdf).

Цитировать

BulgariaSat-1 Mission

SpaceX is targeting launch of BulgariaSat-1 from Launch Complex 39A (LC-39A) at NASA's Kennedy Space Center in Florida. The two-hour launch window opens on Monday, June 19, at 2:10 p.m. EDT, or 18:10 UTC, with a backup launch opportunity on Tuesday, June 20, at 2:10 p.m. EDT, or 18:10 UTC. BulgariaSat-1 is the first geostationary communications satellite in Bulgaria's history.

Falcon 9's first stage for the BulgariaSat-1 mission previously supported the Iridium-1 mission from Vandenberg Air Force Base in January of this year. Following stage separation, Falcon 9's first stage will attempt a landing on the "Of Course I Still Love You" droneship, which will be stationed in the Atlantic Ocean.

A mission press kit is available here (http://www.spacex.com/sites/spacex/files/bulgariasat1presskit.pdf).

ЦитироватьBulgariaSat-1 Launch Webcast

 (https://img.novosti-kosmonavtiki.ru/220682.jpg)  (https://www.youtube.com/user/spacexchannel) SpaceX (https://www.youtube.com/channel/UCtI0Hodo5o5dUb67FeUjDeA)

Запланировано на 19 июн. 2017 г.

Цитироватьhttps://www.youtube.com/watch?v=Y8mLi-rRTh8

Цитироватьtnt22 пишет:
Официальная эмблема миссии
(http://novosti-kosmonavtiki.ru/bitrix/components/bitrix/forum.interface/show_file.php?fid=71961&width=500&height=500)

ЦитироватьMax Andriyahov пишет:
Все-таки самое интересное это Румба. Спейсы красавы, каждый раз что-то новенькое. Даже из банального Амос6 смогли сделать сенсацию)))))

ЦитироватьMax Andriyahov пишет:
... Спейсы красавы, каждый раз что-то новенькое. Даже из банального Амос6 смогли сделать сенсацию)))))

Цитировать (https://img.novosti-kosmonavtiki.ru/186040.jpg) Chris B - NSF‏ @NASASpaceflight (https://twitter.com/NASASpaceflight) 8 мин. назад (https://twitter.com/NASASpaceflight/status/876394794783789056)

SpaceX Falcon 9 S1 (BulgariaSat-1) Coast-2-Coast ASDS Landing Bingo! (https://img.novosti-kosmonavtiki.ru/125513.png)(https://img.novosti-kosmonavtiki.ru/125382.png) - Pick your slot here: https://forum.nasaspaceflight.com/index.php?topic=43165.0 ... (https://t.co/OCwZXfR5qM)
(https://img.novosti-kosmonavtiki.ru/163516.jpg)

Цитировать (https://pbs.twimg.com/profile_images/698664539873796096/Iw28Zwrx_bigger.jpg) Brady Kenniston‏ @TheFavoritist (https://twitter.com/TheFavoritist) 4 ч назад (https://twitter.com/TheFavoritist/status/876461574755627008)

All is quiet at LC-39A. Falcon 9 should be raised tonight and I'll be setting up cameras on the pad around 6am. So excited for this launch!
(https://img.novosti-kosmonavtiki.ru/163528.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/69029.jpg) SpaceX‏Подлинная учетная запись @SpaceX (https://twitter.com/SpaceX) 1 мин. назад (https://twitter.com/SpaceX/status/876522258948169728)

Standing down on BulgariaSat-1 to replace a fairing valve, next launch opportunities are 6/23 and 6/24

Цитировать (https://img.novosti-kosmonavtiki.ru/69029.jpg) SpaceX‏Подлинная учетная запись @SpaceX (https://twitter.com/SpaceX) 2 мин. назад (https://twitter.com/SpaceX/status/876522478046068737)

Iridium targeted for 6/25—could be a weekend doubleheader

ЦитироватьGeorgea пишет:
Темп "каждые две недели" опять не удержали. Очень жаль

Цитироватьtnt22 (http://novosti-kosmonavtiki.ru/forum/user/18282/) пишет:
next launch opportunities are 6/23 and 6/24

Цитироватьvogel пишет:

ЦитироватьGeorgea пишет:
Темп "каждые две недели" опять не удержали. Очень жаль

Будет темп "каждые два дня".  :D

Цитировать (https://img.novosti-kosmonavtiki.ru/185946.jpg) Elon Musk‏Подлинная учетная запись @elonmusk (https://twitter.com/elonmusk) 31 мин. назад (https://twitter.com/elonmusk/status/876536406230712320)

Postponing launch to replace fairing pneumatic valve. It is dual redundant, but not worth taking a chance.

Цитировать (https://img.novosti-kosmonavtiki.ru/185946.jpg) Elon Musk‏Подлинная учетная запись @elonmusk (https://twitter.com/elonmusk) 30 мин. назад (https://twitter.com/elonmusk/status/876536951418925057)

If schedule holds there will be two Falcon 9 launches within 48 hours (Cape & Vandenberg) this weekend

Цитироватьtnt22 пишет:

ЦитироватьElon Musk ‏Подлинная учетная запись @ elonmusk 31 мин. назад (https://twitter.com/elonmusk/status/876536406230712320)

Postponing launch to replace fairing pneumatic valve. It is dual redundant, but not worth taking a chance.

Цитироватьsilentpom пишет:

Цитироватьtnt22 пишет:

ЦитироватьElon Musk ‏Подлинная учетная запись @ elonmusk 31 мин. назад (https://twitter.com/elonmusk/status/876536406230712320)

Postponing launch to replace fairing pneumatic valve. It is dual redundant, but not worth taking a chance.

обратите внимание, заглючило не флайт прувен хардваре

Цитировать06/20/2017 02:25 (https://img.novosti-kosmonavtiki.ru/196244.png)  (http://24liveblog.com/share/196849903?url=https://v.24liveblog.com/live/?id=1394624)
A Falcon 9 rocket has unexpectedly appeared vertical at pad 39A as engineers replace a faulty valve on the payload fairing that will shield Bulgaria's first communications satellite during a delayed liftoff now set for Friday.

The Falcon 9 is without a payload fairing, but whether the rocket is on the pad for a second hotfire engine test or a fueling demonstration is unclear.

We have asked SpaceX for clarification on its plans for the rocket at pad 39A in the coming days.

SpaceX conducted a static hold-down engine firing of the Falcon 9 rocket slated to launch BulgariaSat 1 on Thursday, then returned the vehicle to the hangar at pad 39A for attachment of the satellite before SpaceX announced a four-day launch delay yesterday.

Цитировать (https://img.novosti-kosmonavtiki.ru/186040.jpg) Chris B - NSF‏ @NASASpaceflight (https://twitter.com/NASASpaceflight) 54 мин. назад (https://twitter.com/NASASpaceflight/status/877164950724202498)

F9 at 39A now horizontal again following an overnight test opportunity. F9 at Vandy currently aiming for 1:30pm local time Static Fire test.
(https://img.novosti-kosmonavtiki.ru/163680.jpg)

ЦитироватьSpaceX testing Vandy Falcon 9 amid schedule realignment
June 20, 2017 by Chris Bergin

(https://img.novosti-kosmonavtiki.ru/209196.jpg)

SpaceX is preparing to static fire test a Falcon 9 at the Vandenberg Air Force Base ahead of a mission to launch the next set of Iridium NEXT satellites. The test will set the stage for the potential of two launches within two days for SpaceX, as it realigns the launch date for the Falcon 9 that has already conducted a hot-fire test ahead of its BulgariaSat-1 mission.

Test, Test, Launch, Launch:

Спойлер

The previous plan was to launch the BulgariaSat-1 mission on Monday (https://www.nasaspaceflight.com/2017/06/spacex-static-fire-next-falcon-9-flight-proven-booster/). However, an issue with a fairing valve resulted in SpaceX delaying the launch until NET (No Earlier Than) June 23.

(https://img.novosti-kosmonavtiki.ru/209180.jpg)

The valve system – used to separate the two fairing halves that encapsulate and protect the payload during the initial phase – has redundancy built into the system. Elon Musk tweeted that it was "not worth taking a chance", thus the valve is being replaced inside the 39A Horizontal Integration Facility (HIF).

The Falcon 9 had returned to the HIF following a successful seven second Static Fire test of its nine Merlin 1D engines (https://www.nasaspaceflight.com/2017/06/spacex-static-fire-next-falcon-9-flight-proven-booster/) and was undergoing the stack integration flow ahead of rollout when the issue was noted as part of the routine pre-rollout checks.

Interestingly, a surprise rollout of what is understood to be the same Falcon 9 took place on Monday evening, again – as is now common practice – without the payload.

While the identity of the booster has not been confirmed, the Falcon 9 was not expected to conduct a second static fire, based on the lack of required notices for KSC workers, per roadblocks and safety precautions relating to such tests. Sources also stress the original Static Fire test was without issue and the vehicle had passed its Launch Readiness Review (LRR).

While unconfirmed by SpaceX, it is understood the vehicle is at the pad to aid the testing of ground hydraulics in the 39A Ground Support Equipment (GSE) system (https://www.nasaspaceflight.com/tag/39A/). This element of the GSE has required some periodical work since 39A was reactivated for use with SpaceX launches.

(https://img.novosti-kosmonavtiki.ru/209181.jpg)

With the launch delayed while engineers replace the valve on the fairing, the opportunity to use the rocket sat on the TEL with nothing to do for several days may have initiated this mooted Pad GSE test.

Once the Falcon 9 is back in the HIF, the pre-launch mating flow will take place ahead of rollout back up the 39A ramp – this time as an integrated stack – for launch within a two-hour window that opens at 14:10 local time on Friday.

...

SpaceX has the ability to continue the flow towards launch, despite the schedule change with the BulgariSat-1 pre-launch flow, due to two separate launch teams for its two – currently active – launch sites.

SpaceX's mission control (MCC-X) in Hawthorne, California (https://www.nasaspaceflight.com/tag/SpaceX/) also holds the ability thanks to a recent configuration change that avoids any overlaps in procedures relating to the two individual missions taking place in close proximity.

These next two missions will set a record minimum gap between a pair of SpaceX launches, although due to the slip of the BulgariaSat-1 launch, a third closely schedule mission – with Intelsat 35e, which was scheduled to launch on July 1 – will obviously be pushed to the right.

(https://img.novosti-kosmonavtiki.ru/209182.jpg)

...

(Images: SpaceX, Iridium and L2 – including a large collection of photos from this launch campaign via Brady Kennison (http://www.bradykenniston.com/) for NASASpaceFlight.com)

[свернуть]

ЦитироватьNZZO

B2912/17 - TEMPO DANGER AREA NZD030 (EAST AUCKLAND OCEANIC FIR) IS PRESCRIBEDAS FLW:
ALL THAT AIRSPACE BOUNDED BY A LINE JOINING
S 30 00 00, W 131 00 00
S 60 00 00, W 131 00 00
S 60 00 00, W 175 00 00
S 30 00 00, W 175 00 00
S 30 00 00, W 131 00 00.
ACTIVITY: SPACE DEBRIS RETURN
USER AGENCY: FOREIGN SPACE AGENCY
PRESCRIBED PURSUANT TO CIVIL AVIATION RULE PART 71 UNDER A DELEGATED
AUTHORITY ISSUED BY THE DIRECTOR OF CIVIL AVIATION. SFC - FL999, 23 JUN 18:00
2017 UNTIL 24 JUN 07:10 2017. CREATED: 18 JUN 20:26 2017

ЦитироватьApollo13 пишет:
Будут тестировать включение верхней ступени в апогее для свода ее с орбиты? А в пресс-ките об этом ни слова.

ЦитироватьЗловредный пишет:
А, запретная зона, да?

ЦитироватьСтарый пишет:
Чтото запретная зона не в тех широтах в которых пролегают геопереходные орбиты...

ЦитироватьСтарый пишет:
Чтото запретная зона не в тех широтах в которых пролегают геопереходные орбиты...

Цитировать06/21/2017 18:52 (https://img.novosti-kosmonavtiki.ru/196244.png)  (http://24liveblog.com/share/196856983?url=https://v.24liveblog.com/live/?id=1394624)
A drying forecast late this week will make Friday a good day for a launch from Cape Canaveral, according U.S. Air Force meteorologists.

There is a 90 percent chance of favorable conditions during Friday's two-hour Falcon 9 launch window, which opens at 2:10 p.m. EDT (1810 GMT) to carry the BulgariaSat 1 communications satellite into orbit from pad 39A at NASA's Kennedy Space Center.

Спойлер

"Tropical Storm Cindy has formed in the central Gulf of Mexico and is poised to make landfall tomorrow morning near the border between Texas and Louisiana," forecasters from the Air Force's 45th Weather Squadron wrote in today's outlook. "As the storm moves north, weather in Central Florida will continue its favorable trend of decreasing thunderstorm coverage through the weekend."

The outlook at launch time calls for scattered cumulus clouds at 3,000 feet, southeast winds of 15 to 20 mph, and a temperature of 85 degrees Fahrenheit.

"Starting Friday, an upper-level ridge and associated dry air will build over the Florida peninsula producing favorable conditions for the weekend," the forecast said. "Expect a small threat for on-shore showers in the morning hours with cumulus clouds forming mainly west of the spaceport during the latter part of the countdown. The main weather concern will be cumulus clouds. Maximum upper-level winds will be from the southeast at 20 knots near 40,000 feet."

Similar conditions are predicted Saturday, with a slightly higher threat of cumulus cloud formation. If the launch slips to Saturday, forecasters call for an 80 percent chance of acceptable weather for liftoff.

[свернуть]

Цитировать

LNM: 25/17

ATLANTIC OCEAN - FLORIDA - CAPE CANAVERAL: EASTERN RANGE OP # X5491 FALCON-9 BULGARIASAT-1 (UPDATE: June 19, 2017)
Eastern Range OP # X5491 FALCON-9 BULGARIASAT-1 will be conducting hazardous operations surface to unlimited within the following Launch Hazard Areas. (Ref: LNM 25/17)

A: From 2839N 8039W
TO 2841N 8036W
TO 2836N 7924W
TO 2831N 7924W
TO 2831N 8035W to beginning

B: From 2827N 7530W
TO 2826N 7112W
TO 2800N 7111W
TO 2748N 7215W
TO 2817N 7531W to beginning

Hazard periods for primary and backup launch day;
Primary: 23 / 1805Z thru 23 / 2101Z Jun 17. T-0 is 1810Z
Backup: 24 / 1805Z thru 24 / 2101Z Jun 17. T-0 is 1810Z

ЦитироватьApollo13 (http://novosti-kosmonavtiki.ru/forum/user/16811/) пишет:
tnt22 ,а это не может быть NOTAM для PSLV или Союза? На NSF и reddit ничего пока нет.

ЦитироватьNZZO

 B2912/17 - TEMPO DANGER AREA NZD030 (EAST AUCKLAND OCEANIC FIR) IS PRESCRIBEDAS FLW:
ALL THAT AIRSPACE BOUNDED BY A LINE JOINING
S 30 00 00, W 131 00 00
S 60 00 00, W 131 00 00
S 60 00 00, W 175 00 00
S 30 00 00, W 175 00 00
S 30 00 00, W 131 00 00.
ACTIVITY: SPACE DEBRIS RETURN
USER AGENCY: FOREIGN SPACE AGENCY
PRESCRIBED PURSUANT TO CIVIL AVIATION RULE PART 71 UNDER A DELEGATED
AUTHORITY ISSUED BY THE DIRECTOR OF CIVIL AVIATION. SFC - FL999, 23 JUN 18:00
2017 UNTIL 24 JUN 07:10 2017. CREATED: 18 JUN 20:26 2017

Цитировать( 200451Z JUN 2017 )
HYDROPAC 2151/2017 (GEN) 

SOUTH PACIFIC.
1. HAZARDOUS OPERATIONS SPACE DEBRIS
   231800Z TO 240800Z AND 241800Z TO 250800Z JUN
   IN AREA BETWEEN
   30-00S 60-00S AND 090-00W 175-00W.
2. CANCEL THIS MSG 250900Z JUN 17.

ЦитироватьZayakov said BulgariaSat saw no financial benefit from swapping a new rocket for a used one, and any discount in the deal went to SSL.

ЦитироватьThe $235 million satellite project took 12 years from to go from an idea to reality, Zayakov said.

Цитировать06/23/2017 11:21 (https://img.novosti-kosmonavtiki.ru/196244.png)  (http://24liveblog.com/share/196863117?url=https://v.24liveblog.com/live/?id=1394624)
The Falcon 9 rocket was raised into launch position at pad 39A few minutes ago. The process took less than 20 minutes, and the 229-foot-tall (70-meter) rocket was vertical around 4:10 a.m. EDT (0810 GMT).

ЦитироватьFalcon 9 launch timeline with BulgariaSat 1
June 23, 2017 (https://spaceflightnow.com/2017/06/) Stephen Clark (https://spaceflightnow.com/author/stephen-clark/)

SpaceX's Falcon 9 rocket is set for liftoff from Cape Canaveral on Thursday evening, heading due east over the Atlantic Ocean to deliver the BulgariaSat 1 communications satellite into orbit 35 minutes later.

The 229-foot-tall (70-meter) rocket is poised for launch from pad 39A at NASA's Kennedy Space Center in Florida at 2:10 p.m. EDT (1810 GMT) Thursday at the opening of a two-hour launch window.

Спойлер

Perched atop the rocket is the BulgariaSat 1 communications satellite, a spacecraft made by Space Systems/Loral, ready to beam television programming across Bulgaria and neighboring countries in the Balkans. The rocket will place the satellite into a high-altitude "supersynchronous" transfer orbit.

The timeline below outlines the launch sequence for the Falcon 9 flight with BulgariaSat 1, SpaceX's second launch with a previously-flown first stage booster.

Data source: SpaceX

T-0:00:00: Liftoff

(https://img.novosti-kosmonavtiki.ru/126513.jpg)
After the rocket's nine Merlin engines pass an automated health check, hold-down clamps will release the Falcon 9 booster for liftoff from pad 39A.

T+0:01:10: Mach 1

(https://img.novosti-kosmonavtiki.ru/126514.jpg)
The Falcon 9 rocket reaches Mach 1, the speed of sound, as the nine Merlin 1D engines provide more than 1.7 million pounds of thrust.

T+0:01:19: Max Q

(https://img.novosti-kosmonavtiki.ru/126515.png)
The Falcon 9 rocket reaches Max Q, the point of maximum aerodynamic pressure.

T+0:02:36: MECO

(https://img.novosti-kosmonavtiki.ru/126102.jpg) (https://img.novosti-kosmonavtiki.ru/126102.jpg)
The Falcon 9's nine Merlin 1D engines shut down.

T+0:02:40: Stage 1 Separation

(https://img.novosti-kosmonavtiki.ru/126516.png)
The Falcon 9's first stage separates from the second stage moments after MECO.

T+0:02:47: First Ignition of Second Stage

(https://img.novosti-kosmonavtiki.ru/126100.jpg) (https://img.novosti-kosmonavtiki.ru/126100.jpg)
The second stage Merlin 1D vacuum engine ignites for a nearly 6-minute burn to put the rocket and BulgariaSat 1 into a preliminary parking orbit.

T+0:03:40: Fairing Jettison

(https://img.novosti-kosmonavtiki.ru/126098.jpg) (https://img.novosti-kosmonavtiki.ru/126098.jpg)
The 5.2-meter (17.1-foot) diameter payload fairing jettisons once the Falcon 9 rocket ascends through the dense lower atmosphere. The 43-foot-tall fairing is made of two clamshell-like halves composed of carbon fiber with an aluminum honeycomb core.

T+0:06:19: Stage 1 Entry Burn

(https://img.novosti-kosmonavtiki.ru/126207.png)
A subset of the first stage's Merlin 1D engines ignite for an entry burn to slow down for landing. A final landing burn will occur just before touchdown.

T+0:08:31: Stage 1 Landing

(https://img.novosti-kosmonavtiki.ru/126123.jpg) (https://img.novosti-kosmonavtiki.ru/126123.jpg)
The Falcon 9 rocket's first stage booster touches down on SpaceX's drone ship in the Atlantic Ocean.

T+0:08:38: SECO 1

(https://img.novosti-kosmonavtiki.ru/126099.jpg) (https://img.novosti-kosmonavtiki.ru/126099.jpg)
The second stage of the Falcon 9 rocket shuts down after reaching a preliminary low-altitude orbit. The upper stage and BulgariaSat 1 begin a coast phase scheduled to last more than 18 minutes before the second stage Merlin vacuum engine reignites.

T+0:27:08: Second Ignition of Second Stage

(https://img.novosti-kosmonavtiki.ru/126097.jpg) (https://img.novosti-kosmonavtiki.ru/126097.jpg)
The Falcon 9's second stage Merlin engine restarts to propel the BulgariaSat 1 communications satellite into a supersynchronous transfer orbit.

T+0:28:13: SECO 2

(https://img.novosti-kosmonavtiki.ru/126096.jpg) (https://img.novosti-kosmonavtiki.ru/126096.jpg)
The Merlin engine shuts down after a short burn to put the BulgariaSat 1 satellite in the proper orbit for deployment.

T+0:34:55: BulgariaSat 1 Separation

(https://img.novosti-kosmonavtiki.ru/126095.jpg) (https://img.novosti-kosmonavtiki.ru/126095.jpg)
The BulgariaSat 1 satellite separates from the Falcon 9 rocket in a supersynchronous transfer orbit.

[свернуть]

ЦитироватьSpaceX is targeting launch of BulgariaSat-1 from Launch Complex 39A (LC-39A) at NASA's Kennedy Space Center in Florida. The two-hour launch window opens on Friday, June 23, at 2:10 p.m. EDT, or 18:10 UTC, with a backup launch opportunity on Saturday, June 24, at 2:10 p.m. BulgariaSat-1 is the first geostationary communications satellite in Bulgaria's history.

Цитировать (https://pbs.twimg.com/profile_images/698664539873796096/Iw28Zwrx_bigger.jpg) Brady Kenniston‏ @TheFavoritist (https://twitter.com/TheFavoritist) 4 ч. назад (https://twitter.com/TheFavoritist/status/878229330391965699)

@NASASpaceflight (https://twitter.com/NASASpaceflight) Falcon 9 is vertical and looking great at sunrise.
(https://img.novosti-kosmonavtiki.ru/163888.jpg)

Спойлер

(https://img.novosti-kosmonavtiki.ru/163887.jpg)
(https://img.novosti-kosmonavtiki.ru/163886.jpg)
(https://img.novosti-kosmonavtiki.ru/163885.jpg)

[свернуть]

Цитировать (https://img.novosti-kosmonavtiki.ru/69029.jpg) SpaceX‏Подлинная учетная запись @SpaceX (https://twitter.com/SpaceX) 1 ч назад (https://twitter.com/SpaceX/status/878259699367297025)

Falcon 9 and BulgariaSat-1 vertical on Pad 39A. Today's two-hour launch window opens at 2:10 p.m. EDT, 18:10 UTC.
(https://img.novosti-kosmonavtiki.ru/163890.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/67530.jpg) Spaceflight Now‏ @SpaceflightNow (https://twitter.com/SpaceflightNow) 2 мин. назад (https://twitter.com/SpaceflightNow/status/878284051387383809)

Launch of SpaceX's second reused Falcon 9 rocket is two hours away. No major problems reported in the countdown. https://spaceflightnow.com/2017/06/23/bulgariasat-1-mission-status-center/ ... (https://t.co/lSYh9885Xu)
(https://img.novosti-kosmonavtiki.ru/163905.jpg)

Цитировать06/23/2017 19:09 (https://img.novosti-kosmonavtiki.ru/196244.png)  (http://24liveblog.com/share/196864839?url=https://v.24liveblog.com/live/?id=1394624)
T-minus 2 hours and counting. Good day fr om NASA's Kennedy Space Center in Florida, wh ere a SpaceX Falcon 9 rocket is counting down to liftoff at 2:10 p.m. EDT (1410 GMT) with Bulgaria's first communications satellite.

The roughly 8,150-pound (3,700-kilogram) satellite, built by Space Systems/Loral in Palo Alto, California, is heading for a high-altitude supersynchronous transfer orbit more than 37,000 miles (60,000 kilometers) above Earth on today's half-hour rocket flight.

Weather is nearly ideal for a liftoff from Florida's Space Coast this afternoon, with mostly sunny skies, a few puffy fair weather cumulus clouds, and light winds.

Today's launch will be the 36th flight of a Falcon 9 rocket since it debuted in June 2010, and the eighth Falcon 9 mission so far in 2017.

Critical milestones coming in the next hour include a poll by the SpaceX launch conductor to begin fueling the booster with super-chilled kerosene and liquid oxygen propellants.

Цитировать (https://img.novosti-kosmonavtiki.ru/185376.jpg) Spaceflight101 LIVE‏ @S101_Live (https://twitter.com/S101_Live) 5 мин. назад (https://twitter.com/S101_Live/status/878284899681173508)

#Falcon9 (https://twitter.com/hashtag/Falcon9?src=hash)'s countdown is designed to finish vehicle checks prior to L-90 minutes ahead of the tanking sequence: http://bit.ly/1Yx0oBm (https://t.co/oC2G8MO7Tx)

Цитировать06/23/2017 19:44 Countdown holding (https://img.novosti-kosmonavtiki.ru/196244.png)  (http://24liveblog.com/share/196864991?url=https://v.24liveblog.com/live/?id=1394624)
The countdown clock at Kennedy Space Center is holding at T-minus 1 hour, 28 minutes, 17 seconds. We'll await an update on whether this means today's liftoff has been delayed past the opening of the two-hour launch window.

Цитировать06/23/2017 19:55 (https://img.novosti-kosmonavtiki.ru/196244.png)  (http://24liveblog.com/share/196865054?url=https://v.24liveblog.com/live/?id=1394624)
The countdown clock has resumed, now ticking toward a launch time of 3:10 p.m. EDT (1910 GMT).

ЦитироватьMax Andriyahov пишет:
Ставки? Пуск не перенесут. 1 доллар.

Цитировать (https://img.novosti-kosmonavtiki.ru/69029.jpg) SpaceX‏Подлинная учетная запись @SpaceX (https://twitter.com/SpaceX) 2 мин. назад (https://twitter.com/SpaceX/status/878297403685617664)

Team is running additional ground system checks; Falcon 9 and payload are in good health. New liftoff time set for 3:10 p.m. EDT.

Цитировать06/23/2017 20:06  Launch now set for 3:10 p.m. EDT (1910 GMT) (https://img.novosti-kosmonavtiki.ru/196244.png)  (http://24liveblog.com/share/196865126?url=https://v.24liveblog.com/live/?id=1394624)
SpaceX confirms the new target launch time is 3:10 p.m. EDT to allow time for additional ground system checks. The Falcon 9 rocket and BulgariaSat 1 satellite are reported healthy.

Цитировать (https://pbs.twimg.com/profile_images/698664539873796096/Iw28Zwrx_bigger.jpg) Brady Kenniston‏ @TheFavoritist (https://twitter.com/TheFavoritist) 7 мин. назад (https://twitter.com/TheFavoritist/status/878307794092347392)

@NASASpaceflight (https://twitter.com/NASASpaceflight) @CwG_NSF (https://twitter.com/CwG_NSF) From about 20 min ago. Countdown clock is reflecting the 3:10 lift off time.
(https://img.novosti-kosmonavtiki.ru/163903.jpg)

Цитировать (https://pbs.twimg.com/profile_images/698664539873796096/Iw28Zwrx_bigger.jpg) Brady Kenniston‏ @TheFavoritist (https://twitter.com/TheFavoritist) 10 мин.назад (https://twitter.com/TheFavoritist/status/878291041547239424)

@NASASpaceflight (https://twitter.com/NASASpaceflight) a few more shots from this morning!
(https://img.novosti-kosmonavtiki.ru/163911.jpg)

Спойлер

(https://img.novosti-kosmonavtiki.ru/163912.jpg)
(https://img.novosti-kosmonavtiki.ru/163913.jpg)
(https://img.novosti-kosmonavtiki.ru/163914.jpg)

[свернуть]

Цитировать06/23/2017 20:52 (https://img.novosti-kosmonavtiki.ru/196244.png)  (http://24liveblog.com/share/196865460?url=https://v.24liveblog.com/live/?id=1394624)
The timeline for today's countdown calls for RP-1 kerosene, chilled to around 20 degrees Fahrenheit (minus 6 degrees Celsius), to begin flowing into the two-stage rocket at T-minus 70 minutes. Liquid oxygen loading will follow at T-minus 45 minutes.

A poll of the SpaceX launch team is expected at T-minus 73 minutes to give a "go" for fueling operations.

Цитировать (https://img.novosti-kosmonavtiki.ru/67530.jpg) Spaceflight Now‏ @SpaceflightNow (https://twitter.com/SpaceflightNow) 2 мин. назад (https://twitter.com/SpaceflightNow/status/878311203092680704)

The SpaceX launch team is "go" to begin fueling the Falcon 9 rocket with kerosene & liquid oxygen for today's launch https://spaceflightnow.com/2017/06/23/bulgariasat-1-mission-status-center/ ... (https://t.co/lSYh97QuyU)
(https://img.novosti-kosmonavtiki.ru/163904.jpg)

Цитировать06/23/2017 20:59 (https://img.novosti-kosmonavtiki.ru/196244.png)  (http://24liveblog.com/share/196865488?url=https://v.24liveblog.com/live/?id=1394624)
T-minus 70 minutes. The launch autosequence has started, kicking off the first steps to begin pumping propellants into the 229-foot-tall Falcon 9 at launch pad 39A.

RP-1 kerosene will be pumped into the two-stage Falcon 9 rocket first, followed by liquid oxygen chilled to near minus 340 degrees Fahrenheit (minus 206 degrees Celsius) at T-minus 45 minutes.

ЦитироватьElon Musk‏Verified account @elonmusk (https://twitter.com/elonmusk)  59s60 seconds ago (https://twitter.com/elonmusk/status/878313692986621953)

Falcon 9 will experience its highest ever reentry force and heat in today's launch. Good chance rocket booster doesn't make it back.

Цитировать (https://pbs.twimg.com/profile_images/698664539873796096/Iw28Zwrx_bigger.jpg) Brady Kenniston‏ @TheFavoritist (https://twitter.com/TheFavoritist) 3 мин. назад (https://twitter.com/TheFavoritist/status/878315134686420993)

@NASASpaceflight (https://twitter.com/NASASpaceflight) T-1 hour.
(https://img.novosti-kosmonavtiki.ru/163906.jpg)

Цитировать06/23/2017 21:25 (https://img.novosti-kosmonavtiki.ru/196244.png)  (http://24liveblog.com/share/196865565?url=https://v.24liveblog.com/live/?id=1394624)
Super-chilled, densified liquid oxygen should now be flowing into the two-stage Falcon 9 rocket.
Both stages of the launcher burn the same RP-1/liquid oxygen propellant mixture.

Цитировать (https://img.novosti-kosmonavtiki.ru/69029.jpg) SpaceX‏Подлинная учетная запись @SpaceX (https://twitter.com/SpaceX) 19 мин. назад (https://twitter.com/SpaceX/status/878314576084779009)

~60 minutes until Falcon 9 launch of BulgariaSat-1. Webcast will go live about 15 minutes before liftoff → http://spacex.com/webcast (https://t.co/gtC39uBC7z)

Цитировать06/23/2017 21:33 (https://img.novosti-kosmonavtiki.ru/196244.png)  (http://24liveblog.com/share/196865604?url=https://v.24liveblog.com/live/?id=1394624)
There has been no confirmation of the start of liquid oxygen loading, but the countdown continues at T-minus 36 minutes and counting.

Цитировать‏ @CwG_NSF 2 мин. назад (https://twitter.com/CwG_NSF/status/878320760074280961)

At least 3 LOX venting events seen from #Falcon9 (https://twitter.com/hashtag/Falcon9?src=hash). Still no *official* confirmation, though, that LOX load is underway. #BulgariaSat (https://twitter.com/hashtag/BulgariaSat?src=hash) #SpaceX (https://twitter.com/hashtag/SpaceX?src=hash)

Цитировать06/23/2017 21:42 (https://img.novosti-kosmonavtiki.ru/196244.png)  (http://24liveblog.com/share/196865654?url=https://v.24liveblog.com/live/?id=1394624)
T-minus 28 minutes and counting. Here are some statistics on today's flight:

Спойлер

[/li]
• 36th launch of a Falcon 9 rocket since 2010
• 41st launch of Falcon rocket family since 2006
• 2nd launch of Falcon 9 Vehicle No. 29
• 33rd Falcon 9 launch from Cape Canaveral
• 101st flight from launch pad 39A
• 7th Falcon 9 launch from pad 39A
• 16th launch of the upgraded Falcon 9
• 1st SpaceX launch for BulgariaSat
• 6th Space Systems/Loral satellite launched by SpaceX
• 22nd Falcon 9 day launch
• 8th Falcon 9 launch of 2017
• 10th launch from Cape Canaveral in 2017
  

[свернуть]

Цитировать06/23/2017 21:43 (https://img.novosti-kosmonavtiki.ru/196244.png)  (http://24liveblog.com/share/196865660?url=https://v.24liveblog.com/live/?id=1394624)
Puffs of vapor coming from the Falcon 9 rocket at pad 39A suggest liquid oxygen loading is underway.

ЦитироватьApollo13 пишет:
Сегодняшний эксперимент будет особенно бесчеловечным

Цитировать06/23/2017 21:57 (https://img.novosti-kosmonavtiki.ru/196244.png)  (http://24liveblog.com/share/196865729?url=https://v.24liveblog.com/live/?id=1394624)
First stage liquid oxygen drainback has started.

Цитировать (https://img.novosti-kosmonavtiki.ru/186040.jpg) Chris B - NSF‏ @NASASpaceflight (https://twitter.com/NASASpaceflight) 6 мин. назад (https://twitter.com/NASASpaceflight/status/878326481042132992)

OCISLY waiting to catch a Falcon 9 booster. Remember, they've warned us this one may not make it back.
(https://img.novosti-kosmonavtiki.ru/163916.jpg)

ЦитироватьFarakh пишет:
Криво встала

Цитировать06/23/2017 22:25 (https://img.novosti-kosmonavtiki.ru/196244.png)  (http://24liveblog.com/share/196865906?url=https://v.24liveblog.com/live/?id=1394624)
Restart of the second stage's Merlin engine is set for T+plus 27 minutes, 8 seconds.

Цитировать (https://img.novosti-kosmonavtiki.ru/69029.jpg) SpaceX‏Подлинная учетная запись @SpaceX (https://twitter.com/SpaceX) 5 мин. назад (https://twitter.com/SpaceX/status/878332861668929537)

Falcon 9 first stage has landed on Of Course I Still Love You—second successful launch and landing of a flight-proven booster.

Цитировать (https://img.novosti-kosmonavtiki.ru/69029.jpg) SpaceX‏Подлинная учетная запись @SpaceX (https://twitter.com/SpaceX) 2 мин. назад (https://twitter.com/SpaceX/status/878334097596203010)

Second stage and satellite now in coast phase. Webcast returns in ~10 minutes for second stage engine restart and satellite deployment.

Цитировать (https://img.novosti-kosmonavtiki.ru/186040.jpg) Chris B - NSF‏ @NASASpaceflight (https://twitter.com/NASASpaceflight) 2 мин. назад (https://twitter.com/NASASpaceflight/status/878334853845876736)

The question is if a cheeky robot is now rushing to greet the booster. No reference from SpaceX yet.
(https://img.novosti-kosmonavtiki.ru/163893.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/69029.jpg) SpaceX‏Подлинная учетная запись @SpaceX (https://twitter.com/SpaceX) 55 сек. назад (https://twitter.com/SpaceX/status/878336669484630017)

Final second stage engine cutoff nominal, preparing to deploy satellite.

Цитироватьtoexc пишет:
Три ракеты за сутки! Ура, товарищи! Поздравляю индийцев, Роскосмос и Spacex с успехом!

Цитировать (https://img.novosti-kosmonavtiki.ru/69029.jpg) SpaceX‏Подлинная учетная запись @SpaceX (https://twitter.com/SpaceX) 5 мин. назад (https://twitter.com/SpaceX/status/878338407130251264)

Successful deployment of BulgariaSat-1 to a Geostationary Transfer Orbit confirmed.

ЦитироватьLesobaza пишет:

Цитироватьtoexc пишет:
Три ракеты за сутки! Ура, товарищи! Поздравляю индийцев, Роскосмос и Spacex с успехом!

Может, всё-таки ВКС??

ЦитироватьDiZed пишет:
Анатолий ВС,
дренаж бака кислорода?

ЦитироватьBlastoff! SpaceX Launches BulgariaSat-1 on Reused Rocket

 (https://img.novosti-kosmonavtiki.ru/220693.jpg)  (https://www.youtube.com/user/VideoFromSpace) VideoFromSpace (https://www.youtube.com/channel/UCVTomc35agH1SM6kCKzwW_g)

ЦитироватьSpaceX Falcon 9 BulgariaSat-1 launch & landing, 23 June 2017

 (https://img.novosti-kosmonavtiki.ru/220782.jpg)  (https://www.youtube.com/user/SciNewsRo) SciNews (https://www.youtube.com/channel/UCjU6ZwoTQtKWfz1urL7XcbA)

ЦитироватьЗапуск и посадка Falcon 9 (Bulgariasat-1) / 23 Июня 2017

(https://img.novosti-kosmonavtiki.ru/220768.jpg)  (https://www.youtube.com/user/CookieTeamProject) Universum (https://www.youtube.com/channel/UClW8xvoZutSLsMH5s01up0w)

ЦитироватьАнатолий ВС пишет:

ЦитироватьDiZed пишет:
Анатолий ВС,
дренаж бака кислорода?

Не странное ли место для дренажного клапана? Мне кажется он должен быть где-то в верхней части бака

Цитировать (https://img.novosti-kosmonavtiki.ru/186040.jpg) Chris B - NSF‏ @NASASpaceflight (https://twitter.com/NASASpaceflight) 11 мин. назад (https://twitter.com/NASASpaceflight/status/878340000785543168)

REVIEW: SpaceX Falcon 9 BulgariaSat-1: ARTICLE: https://www.nasaspaceflight.com/2017/06/spacex-falcon-9-second-flight-bulgariasat-1-mission/ ... (https://t.co/Fv2Pk35W6r) - COVERAGE: https://forum.nasaspaceflight.com/index.php?topic=42913.0 ... (https://t.co/rgWAqoGl2K)
(https://img.novosti-kosmonavtiki.ru/163897.jpg)

Спойлер

(https://img.novosti-kosmonavtiki.ru/163898.jpg)
(https://img.novosti-kosmonavtiki.ru/163899.jpg)

[свернуть]

ЦитироватьSpace-X Relaunched Falcon 9 - BulgariaSat-1 | Live Launch Event

 (https://img.novosti-kosmonavtiki.ru/220656.jpg)  (https://www.youtube.com/channel/UCj0jIZHkpk8HFB7m1B7xehQ) Present Tech (https://www.youtube.com/channel/UCj0jIZHkpk8HFB7m1B7xehQ)

ЦитироватьReused SpaceX Rocket Lands on Drone Ship After BulgariaSat-1 Launch

 (https://img.novosti-kosmonavtiki.ru/220693.jpg)  (https://www.youtube.com/user/VideoFromSpace) VideoFromSpace (https://www.youtube.com/channel/UCVTomc35agH1SM6kCKzwW_g)

ЦитироватьBulgariaSat-1 Launch Webcast

 (https://img.novosti-kosmonavtiki.ru/220682.jpg)  (https://www.youtube.com/user/spacexchannel) SpaceX (https://www.youtube.com/channel/UCtI0Hodo5o5dUb67FeUjDeA)

ЦитироватьПрол пишет:

ЦитироватьLesobaza пишет:

Цитироватьtoexc пишет:
Три ракеты за сутки! Ура, товарищи! Поздравляю индийцев, Роскосмос и Spacex с успехом!

Может, всё-таки ВКС??

Ну все "железо" все-таки Роскосмосовское  :)  . Но ВКС тоже поздравляем, пуск то их.

ЦитироватьАнатолий ВС пишет:
Что за газы истекают отсюдова?... я уж было подумал что что-то идет не так

Цитировать (https://img.novosti-kosmonavtiki.ru/67530.jpg) Spaceflight Now‏ @SpaceflightNow (https://twitter.com/SpaceflightNow) 8 мин. назад (https://twitter.com/SpaceflightNow/status/878357219464577026)

Mission control has acquired signals from the BulgariaSat 1 satellite, confirming good health after Falcon 9 launch https://spaceflightnow.com/2017/06/23/bulgariasat-1-mission-status-center/ ... (https://t.co/lSYh9885Xu)

ЦитироватьLesobaza пишет:
Ну все "железо" все-таки Роскосмосовское :) . Но ВКС тоже поздравляем, пуск то их.
Чегой то?? С 14-го года ЦСКБ-Прогресс преобразовано в ОАО.

Цитироватьmakandser пишет:
Для сравнения условий возвращения ступеней (данные из вебкастов):

 CRS-11 (посадка на землю ) vs BulgariaSat-1 (самая сложная на платформу)
Скорость при расстыковке: 6000 км/ч vs 8500 км/ч
Скорость перед entry burn: 4500 км/ч vs 8600 км/ч
Скорость после entry burn: 3500 км/ч vs 6600 км/ч

ЦитироватьАнатолий ВС пишет:
Что за газы истекают отсюдова?... я уж было подумал что что-то идет не так

ЦитироватьJune 23, 2017

BulgariaSat-1 Mission

On June 23, 2017, SpaceX's Falcon 9 rocket successfully launched the BulgariaSat-1 satellite into orbit—the first geostationary communications satellite in Bulgaria's history. This mission marked the second reflight of a Falcon 9 first stage, having previously supported the Iridium-1 mission from Vandenberg Air Force Base in January of this year.

Following stage separation, the first stage of Falcon 9 successfully landed on SpaceX's East Coast droneship "Of Course I Still Love You," stationed in the Atlantic Ocean. This marks the first time a Falcon 9 first stage has landed on both SpaceX's East and West coast droneships, having previously landed on "Just Read the Instructions" in the Pacific Ocean.

You can watch the archived mission webcast below and find more information about the mission in our press kit (http://www.spacex.com/sites/spacex/files/bulgariasat1presskit_updated.pdf). Additional photos are also available on our Flickr page (https://www.flickr.com/photos/spacex).

ЦитироватьАлексей пишет:

Цитироватьmakandser пишет:
Для сравнения условий возвращения ступеней (данные из вебкастов):

 CRS-11 (посадка на землю ) vs BulgariaSat-1 (самая сложная на платформу)
Скорость при расстыковке: 6000 км/ч vs 8500 км/ч
Скорость перед entry burn: 4500 км/ч vs 8600 км/ч
Скорость после entry burn: 3500 км/ч vs 6600 км/ч

Надо все таки сравнивать миссии на ГПО с посадкой на платформу.

Цитироватьdfln пишет:

ЦитироватьПрол пишет:
Да, как-то кривовато получилось-камеру сажей забило, ТМ отрубилась, мимо центра промахнулись.Прям беда  :)  .

Помнится, еще полтора года назад местные "гуру", "работавшие в отрасли" (и этим всем тыкающие), кричали о том, что это злобный Маск "вытаскивает кабель" в момент посадки, чтобы в случае чего скрыть неудачу.
Гуру просто не знали о том, что антенне требуется наведение.. Теперь гуру знают, поэтому в последних 8 пусках молчат в трубочку)

ЦитироватьFalcon 9 Launches Bulgaria's 1st Commercial Satellite, 'Toasty' Booster Survives hard Landing
 June 23, 2017 (http://spaceflight101.com/falcon-9-bulgariasat-1/falcon-9-launch-landing-success-with-bulgariasat/)

A flight-proven Falcon 9 rocket lifted off fr om Florida's Kennedy Space Center on Friday with Bulgaria's first commercial communications satellite – marking the opening salvo of a potential SpaceX double header into this weekend as the company's California-based launch team is working toward a Sunday liftoff with ten Iridium-NEXT satellites. (http://spaceflight101.com/falcon-9-iridium-next-flight-2/)

The two-stage Falcon 9 – sporting a previously flown first stage and brand new second stage – blasted off fr om Launch Complex 39A at 19:10 UTC on its eighth flight of the year, the fourth involving a high-energy Geotransfer delivery.

Спойлер

(https://img.novosti-kosmonavtiki.ru/152520.jpg) (http://spaceflight101.com/falcon-9-bulgariasat-1/wp-content/uploads/sites/157/2017/06/35491529875_d99c0dbbf0_k.jpg)
Photo: SpaceX

Rising into clear skies over the former Saturn V and Space Shuttle launch complex, Falcon 9 swung to the south-east on the standard route to Geostationary Transfer Orbit, firing the first stage for a little over two and a half minutes before the rocket's two stages went their separate ways with Stage 1 attempting a difficult high-energy recovery via a Drone Ship landing and Stage 2 fired up its vacuum-optimized engine to head on toward orbit.

(https://img.novosti-kosmonavtiki.ru/152522.jpg) (http://spaceflight101.com/falcon-9-bulgariasat-1/wp-content/uploads/sites/157/2017/06/bulgariasat-1-launch-10.jpg)
First Stage 'extra toasty' – Photo: SpaceX Webcast

After successfully dispatching the second stage, the booster, identified by serial number 1029.2 for a re-use mission, had only the bare essentials in terms of leftover fuel, requiring the Autonomous Spaceport Drone Ship to be stationed well downrange of Cape Canaveral as this mission featured a particularly sporty return.

The 47-meter long booster continued on a ballistic arc until firing up a subset of its engines to slow down for re-entry, then relying on its four actuated grid fins to steer toward the drone ship for a do-or-die three-engine landing burn to arrest its rapid vertical descent just as the landing legs made contact with the ship.

Cheers emerged when video returned after a brief outage and showed the booster on the 'Of Course I Still Love You' drone ship after the most challenging return to date, also marking the second time SpaceX recovered a twice-flown booster.

(https://img.novosti-kosmonavtiki.ru/152530.jpg) (http://spaceflight101.com/falcon-9-bulgariasat-1/wp-content/uploads/sites/157/2017/06/ssl-bulgariasat.jpg)
Photo: Space Systems/Loral

In charge of the day's primary mission, the rocket's second stage completed an initial burn of close to six minutes to reach a Low Earth Parking for 18 minutes to coasting to reach the proper spot in its orbit for the all critical re-start 27 minutes into the mission to lift BulgariaSat-1 into its planned Supersynchronous Transfer Orbit. Springs pushed the satellite on its way 35 minutes after liftoff, marking the culmination of a project 12 years in the making.

BulgariaSat-1 is the first commercial communications satellite for the small Balkan country, hosting an all Ku-Band payload focused on TV distribution to Bulgaria, its neighboring Balkan countries and a large stretch of Western and Central Europe, opening up new capacity and revenue areas for Bulgaria Sat's affiliate, TV provider Bulsatcom. The 3,669-Kilogram satellite hosts three Fixed Satellite Services Transponders and thirty Broadcasting Satellite Services transponders, underlining the satellite's primary role in TV distribution with secondary business in networking services and Internet connectivity.

>>BulgariaSat-1 Spacecraft Overview (http://spaceflight101.com/falcon-9-bulgariasat-1/bulgariasat/)

url=http://spaceflight101.com/falcon-9-bulgariasat-1/wp-content/uploads/sites/157/2017/05/BulSat_1-117-032_Fotor_preview-1.jpg](https://img.novosti-kosmonavtiki.ru/152518.jpg)[/url]
Photo: Bulgaria Sat

Built for a 15-year service life, BulgariaSat-1 will enable Bulsatcom to add HDTV and 4K business, opening up new market opportunities as 4K Ultra-HD TV distribution is still sparse in the Balkan Region. Bulsatcom aims to use BulgariaSat's added capacity to explore new markets in Serbia, a move previously hindered by the company's limited leased capacity on the HellasSat-2 spacecraft that launched from Florida 14 years ago. The company will also be looking at completely new areas as BulgariaSat-1 offers more than enough capacity for the broader Balkan region.

Valued at $235 million, the satellite project was largely made possible through a reduction in launch cost for large Geostationary Satellites, in part due to SpaceX's ongoing drive to reduce costs.

A trend enabled by dropping launch cost has seen smaller countries launching their own communications satellites into orbit instead of leasing capacity with commercial operators. Some nations that opted for independent satellites include Belarus, Laos and Turkmenistan using the cheaper options on the launch market, notably China's Long March 3B and the SpaceX Falcon 9.

(https://img.novosti-kosmonavtiki.ru/152528.jpg) (http://spaceflight101.com/falcon-9-bulgariasat-1/wp-content/uploads/sites/157/2017/06/DBuLtf5UwAAtNkw.jpg)
The refurbished Iridium-1 First Stage arrives for the Bulgaria Sat Launch Campaign – Photo: SpaceX

BulgariaSat-1 is Bulgaria's second satellite, coming 36 years after Bulgaria-1300 – a modified Soviet meteorology satellite launched under a program to give other Warsaw Pact countries a chance to promote space flight and operate their own satellites.

The switch of BulgariaSat-1 to a flight-proven Falcon 9 was announced in early May after satellite manufacturer SS/L finalized the decision for the swap, working in close cooperation with SpaceX, insurance providers and Bulgaria Sat. Per the terms of the 'delivery in orbit' contract, Space Systems/Loral is in charge of all aspects of the mission from manufacture & testing, through launch and in-orbit commissioning, allowing the company to re-negotiate the launch with SpaceX.

Work to move the satellite to a previously flown booster began well before Falcon's first re-use mission on March 30 with SES-10 (http://spaceflight101.com/falcon-9-ses-10/), but insurance providers required one successful demonstration of a used rocket. After SES-10 reached its orbital destination without issue, SS/L committed to the re-use mission, allowing BulgariaSat to advance in a fairly crowded launch manifest at SpaceX.

(https://img.novosti-kosmonavtiki.ru/152519.jpg) (http://spaceflight101.com/falcon-9-bulgariasat-1/wp-content/uploads/sites/157/2017/06/32312417695_8e1cefb5da_k.jpg)
Falcon 9 Booster 1029 climbs off the Pad on January 14, 2017 – Photo: SpaceX

One particular bottleneck encountered by SpaceX when it came to stepping up its launch rate was the production of first stages. Reaching an impressive success rate on the booster recovery front, SpaceX was hoping to use flight-proven stages to tackle its busy manifest, however, the company is currently only offering a 10% discount to companies opting for a used booster as it aims to recoup some $1 billion in expenses for the development of the re-usable rocket stage and establishing the required ground infrastructure.

The schedule advances possible with re-use missions could be an incentive for a number of companies to commit to the switch over the coming months and years as re-use is streamlined and gets closer to routine.

Booster 1029.2, flying Friday's mission, was the first to launch from both coasts of the United States, making its first trip to the edge of space and back on January 14 – launching out of California on a heavy haul to Low Earth Orbit with the first ten Iridium-NEXT satellites  (http://spaceflight101.com/falcon-9-iridium-next-flight-1/)and successfully achieving SpaceX's first Pacific-based drone ship landing.

BulgariaSat-1 was originally targeting a June 15 launch date as SpaceX aimed at sustaining a stable two-week cadence at Launch Complex 39A, but a weather related delay to the previous launch and a fairing issue on this mission ended up pushing the launch eight days to the right. Falcon 9 went through its Static Fire test on June 15 and was spotted back at the pad earlier this week to conduct some interface checks with ground pressurization and hydraulic systems. After replacement of a suspect fairing valve were complete, Falcon 9 was able to meet its passenger and returned to the launch pad before dawn on Friday.

(https://img.novosti-kosmonavtiki.ru/152529.jpg) (http://spaceflight101.com/falcon-9-bulgariasat-1/wp-content/uploads/sites/157/2017/06/DDAzN8KUIAEQpeH.jpg)
Photo: SpaceX

Falcon 9 – gearing up for its 36th overall launch and the 16th in the Full Thrust configuration – enjoyed a fairly clean countdown from a technical standpoint and had no worries on the weather front after forecasts showed progressive improvements since the weekend. A one-hour delay to T-0 was necessitated by additional tests on ground systems deemed necessary by Launch Controllers – taking advantage of the mission's two-hour window.

Detailed testing of the rocket awarded Falcon 9 a clean bill of health and a poll of all support stations provided the green light for the fast-paced propellant loading sequence to pick up at T-70 minutes.

While Falcon 9 was receiving over 500 metric tons of sub-cooled Liquid Oxygen and chilled Rocket Propellant-1, teams provided an upd ated flight profile to the rocket's computers to ease loads experienced during flight and BulgariaSat-1 switched to battery power for its climb to orbit.

>>Falcon 9 FT Launch Vehicle Overview (http://spaceflight101.com/spacerockets/falcon-9-ft/)

(https://img.novosti-kosmonavtiki.ru/152521.jpg) (http://spaceflight101.com/falcon-9-bulgariasat-1/wp-content/uploads/sites/157/2017/06/35491530485_1001a37d60_k.jpg)
Photo: SpaceX

Final countdown events checked off in the last seven minutes included chilling down the nine Merlin 1D engines, retracting the Strongback structure, transitioning Falcon 9 to internal power, reaching flight levels on all four propellant tanks and handing control over to the vehicle at the one-minute mark.

Booster 1029 came to life three seconds prior to liftoff as the typical green flame of Falcon's igniter mix erupted from the business end of the rocket and all nine Merlins soared up to a collective launch thrust of nearly 700 metric ton force. Liftoff was marked at 19:10 UTC, 3:10 p.m. local time as Falcon 9 left the ground upon being released by its hold-down system.

Burning 2,500 Kilograms of propellant per second, Falcon 9 cleared the 106-meter tall tower at LC-39A and pitched over to begin accelerating downrange on a south-easterly flight path across the Atlantic Ocean.

The rocket pushed though the sound barrier just over one minute into the flight and the moment of Maximum Dynamic Pressure came at T+79 seconds when stress on the rocket's first stage reached a peak – a critical point in the flight as it placed the most pressure on the booster's used air frame. Falcon 9 throttled back briefly around MaxQ before continuing full steam ahead toward its cutoff target.

The first stage finished operation as part of the primary mission two minutes and 38 seconds into the flight, having accelerated the stack to a speed of 2.37 Kilometers per second, or nearly seven times the speed of sound. Stage Separation, four seconds after MECO, occurred at an altitude of 68 Kilometers as pneumatic pushers sent the first stage clear of the extended nozzle of the second stage's MVac engine for ignition.

(https://img.novosti-kosmonavtiki.ru/152525.jpg) (http://spaceflight101.com/falcon-9-bulgariasat-1/wp-content/uploads/sites/157/2017/06/bulgariasat-1-launch-6.jpg)
Stage 1 and 2 parting ways – Photo: SpaceX Webcast

The second stage fired up six seconds after staging, soaring to a thrust of 95,000 Kilogram-force on a planned five-minute and 51-second burn to boost the satellite into a preliminary Parking Orbit.

To facilitate the Supersynchronous delivery of the satellite, Falcon 9's first stage only had the bare minimum propellant reserve for its trip back to Earth and therefore flew a two-burn return profile with no boostback maneuver – continuing on a ballistic arc until hitting the atmosphere. This required the Drone Ship to be stationed 680 Kilometers downrange from the launch pad, further out than recent missions like SES-10.

Onboard video from the first stage showed the booster swinging around to a tail-first position before firing up a subset of its engines at T+6 minutes and 30 seconds for a 19-second braking maneuver to slow down by 560 meters per second.

(https://img.novosti-kosmonavtiki.ru/152526.jpg) (http://spaceflight101.com/falcon-9-bulgariasat-1/wp-content/uploads/sites/157/2017/06/bulgariasat-1-launch-8.jpg)
1st Stage Entry Burn – Photo: SpaceX Webcast

When the burn finished, Stage 1 made a quick pitch-up and the heat of re-entry became evident as flames built up around the four deployed grid fins and the camera view was blackened significantly.

Stage 1 hit the dense atmosphere at around 1,835 meters per second and was in for the highest entry force and heat experienced by a Falcon 9 booster to date, making this the most challenging landing yet. Kinetic energy increases as a square of the velocity and peak heating as a cube of velocity – explaining why even a slightly higher MECO velocity/entry speed will have a considerable effect on the stage's return journey.

To some surprise, Falcon 9 – despite dropping its signal at re-entry – made it through peak heating and entered an unpowered descent through the atmosphere with the booster using its four grid fins to fly out any along-track and cross-track errors to target the precise drone ship location programmed into the flight computer.

 (https://img.novosti-kosmonavtiki.ru/152527.jpg) (http://spaceflight101.com/falcon-9-bulgariasat-1/wp-content/uploads/sites/157/2017/06/bulgariasat-1-launch-9.jpg)
Falcon 9 feels the burn (flaming grid fin to the right) – Photo: SpaceX Webcast

With under half a minute to touchdown, Falcon 9 fired up on a three-engine landing burn that is utilized for particularly fuel-constrained landings to cut gravity losses from the more gentle & controllable single-engine landing burn that is the preferred method for bringing Falcon 9 home. Once called a 'suicide maneuver,' SpaceX was able to refine the three-engine landing maneuver to increase the odds of success.

Video from the first stage and drone ship vanished in the last seconds of the rocket-powered descent, but returned to show the booster standing on its four fold-out landing legs for another landing success – also making B1029 the first orbital-class rocket to launch from both U.S. Coasts and landing in the Pacific and Atlantic Oceans.

SpaceX Chief Elon Musk noted the booster was 'extra toasty' and almost maxed out the crush core capability of its legs due to a hard contact with the drone ship which SpaceX will likely address for future three-engine landings by continuing to tweak the fast-paced sequence. Otherwise, the slightly leaning Falcon 9 booster was reported in good condition.

There have been some indications that this mission could be the first to use a contraption affectionately called the 'Roomba' – a remote-controlled device that moves about the drone ship deck to secure a landed core without the need to send engineers to a potentially unstable first stage.

(https://img.novosti-kosmonavtiki.ru/152523.jpg) (http://spaceflight101.com/falcon-9-bulgariasat-1/wp-content/uploads/sites/157/2017/06/bulgariasat-1-launch-12.jpg)
Stage 2 Re-Start – Photo: SpaceX Webcast

While the first stage was going through the motions for its speedy return, Stage 2 shed its 13-meter long fairing halves as it reached the tenuous upper atmosphere and continued on toward orbit. It was not known whether Friday's flight would carry a fairing re-use kit that debuted on the SES-10 mission, comprising thrusters to stabilize the fairing and autosteering chutes to deliver the halves toward an aerial or maritime recovery point.

Stage 2 achieved orbit and shut down within seconds of the first stage touching down, entering a coast phase of 18.5 minutes during which it continued on its south-easterly trek across the Atlantic in order to reach the equator for the second burn to se t up the typical insertion parameters for a Geotransfer Orbit. Re-Light of the MVac engine was confirmed just after the T+27 minute mark and the burn appeared to reach its 65-second planned duration with MVac throttling down toward the end to maintain a maximum acceleration of 5Gs, achieving a delta-v of 2.68km/s for the second burn.

(https://img.novosti-kosmonavtiki.ru/152524.jpg) (http://spaceflight101.com/falcon-9-bulgariasat-1/wp-content/uploads/sites/157/2017/06/bulgariasat-1-launch-13.jpg)
BulgariaSat-1 drifts into the Night after a successful Launch – Photo: SpaceX Webcast

Mission Controllers called out that Falcon 9 reached the intended Supersynchronous Transfer Orbit, stretching from a few hundred Kilometers above Earth's surface to peak well above the satellite's eventual operating altitude of 35,800 Kilometers.

Sent on its way 35 minutes after liftoff, the BulgariaSat-1 satellite was expected to check in with ground stations and begin re-shaping its orbit over the coming days to reach a Geostationary Orbit wh ere its speed matches the Earth's rotation to allow the satellite to remain in the same spot in the sky, stationed at 1.9 degrees East from wh ere it can cover Bulgaria and a large stretch of Europe. Pending a successful orbit-raising campaign, BulgariaSat-1 is expected to become operational in early August.

With Friday's launch & landing going off without a hitch, there will not be much of a break for SpaceX with post-mission reviews on tap to verify the flight included no hidden surprises in order to clear Sunday's Falcon 9 launch out of Vandenberg, targeting a 20:25 UTC T-0 time.

[свернуть]

ЦитироватьDiZed пишет:
Анатолий ВС,
дренаж бака кислорода?

Цитироватьmakandser пишет:
Для сравнения условий возвращения ступеней (данные из вебкастов):

 CRS-11 (посадка на землю ) vs BulgariaSat-1 (самая сложная на платформу)
Скорость при расстыковке: 6000 км/ч vs 8500 км/ч
Скорость перед entry burn: 4500 км/ч vs 8600 км/ч
Скорость после entry burn: 3500 км/ч vs 6600 км/ч

Цитироватьgin_tonic пишет:

ЦитироватьАнатолий ВС пишет:
Что за газы истекают отсюдова?... я уж было подумал что что-то идет не так

Как было сказано в трансляции - это nitrogen thrusters. По-русски скорее всего будет звучать как двигатели ориентации

Цитироватьgin_tonic пишет:

ЦитироватьАнатолий ВС пишет:
Что за газы истекают отсюдова?... я уж было подумал что что-то идет не так

Как было сказано в трансляции - это nitrogen thrusters. По-русски скорее всего будет звучать как двигатели ориентации

ЦитироватьBulgaria's first communications satellite heaved into orbit

June 23, 2017 (https://spaceflightnow.com/2017/06/) Stephen Clark (https://spaceflightnow.com/author/stephen-clark/)

(https://img.novosti-kosmonavtiki.ru/126519.jpg)
Credit: SpaceX

Launching into a sun-splashed afternoon sky, a previously-flown SpaceX Falcon 9 rocket climbed into orbit fr om Florida's east coast Friday with a U.S.-built, Bulgarian-owned television broadcasting satellite.

In a secondary objective, the Falcon 9's first stage booster descended back to Earth and slowed down for a jarring touchdown on SpaceX's drone ship holding position several hundred miles east of Cape Canaveral.

Спойлер

The successful launch and landing is the first of two back-to-back Falcon 9 launches planned by SpaceX. A separate launch team is preparing a Falcon 9 rocket for liftoff Sunday fr om Vandenberg Air Force Base in California.

Running one hour late to conduct additional ground system verifications, the 229-foot-tall (70-meter) two-stage rocket lit its nine Merlin 1D main engines, passed a nearly instantaneous automated readiness check, and climbed away fr om launch pad 39A at NASA's Kennedy Space Center at 3:10 p.m. EDT (1910 GMT).

Navigating east from Florida's Space Coast, the Falcon 9 rocket arced over the Atlantic Ocean on 1.7 million pounds of thrust, soaring to an altitude of more than 44 miles (70 kilometers) before the booster's first stage shut down and fell away.

Pushers ensured a clean separation of the Falcon 9's first and second stage, and the booster reignited a subset of its engines for a re-entry braking burn, then three of its Merlin powerplants fired on final descent to slow down for landing on SpaceX's drone ship, dubbed "Of Course I Still Love You."

Four landing legs extended from the base of the booster just before touchdown. A live video feed from the landing barge cut out during landing, but the first stage was visible on the ship with an apparent lean when video resumed.

Elon Musk, SpaceX's founder and CEO, tweeted that the Falcon 9's first stage endured its highest-ever re-entry force and heat on Friday's descent. The Falcon 9 rocket aimed to heave the 8,150-pound (3,700-kilogram) BulgariaSat 1 satellite into a supersynchronous transfer orbit ranging more than 37,000 miles (60,000 kilometers) from Earth.

The fuel needed to loft BulgariaSat 1 into such a high orbit left less propellant in the first stage's tanks for braking maneuvers on descent.

"Good chance rocket booster doesn't make it back," Musk tweeted before the launch.
It turns out the first stage survived the landing, the 12th time SpaceX has recovered one of its rockets intact in 17 tries. The last eight booster landing attempts have been successful over the last year, including recoveries at sea and on land.

"Rocket is extra toasty and hit the deck hard (used almost all of the emergency crush core), but otherwise good," Musk tweeted after Friday's landing.

(https://img.novosti-kosmonavtiki.ru/126518.jpg)
A view of the Falcon 9's first stage booster on SpaceX's drone ship in the Atlantic Ocean after Friday's launch. Credit: SpaceX

SpaceX has not set whether it intends to reuse the first stage recovered Friday, which made it back to Earth for the second time. The 14-story rocket stage first flew Jan. 14 from Vandenberg Air Force Base, sending 10 Iridium communications satellites toward orbit before landing on SpaceX's other drone ship, named "Just Read the Instructions."

Friday's mission was the second time SpaceX has reused one of its rockets, coming three months after the company deployed a commercial SES communications craft with a different recycled booster stage. That vehicle is now retired, and SpaceX says it will go on display somewh ere at Cape Canaveral.

The rocket reuse effort is geared toward reducing the cost of space launches.

SpaceX has not said when the next Falcon 9 will launch with a previously-flown first stage, but the maiden flight of the Falcon Heavy rocket later this year will use two reused side-mounted Falcon boosters, along with a newly-built core. The heavy-lifter will be powered by 27 engines at liftoff from three modified Falcon 9 first stages bolted together.

While the first stage returned to a landing in the Atlantic, the Falcon 9's expendable upper stage steered the BulgariaSat 1 satellite into orbit with two engine firings. The robotic broadcasting station, built by Space Systems/Loral in Palo Alto, California, released from the Falcon 9's upper stage around 35 minutes into the mission.

Maxim Zayakov, CEO of BulgariaSat and its affiliate Bulsatcom, said the satellite was healthy following Friday's launch. He said ground controllers established contact with BulgariaSat 1 as expected a few minutes after deployment from the launcher.

Power-generating solar arrays were scheduled to unfurl on the satellite later Friday, and a series of on-board engine burns will reshape BulgariaSat 1's orbit at an altitude of around 22,300 miles (35,800 kilometers) over the equator over the next 10 days, Zayakov said.

The satellite should enter service in geostationary orbit by early August, starting a 15-year mission beaming television across Bulgaria, Serbia and neighboring regions in the Balkans. Controllers will park BulgariaSat 1 along the equator at 1.9 degrees east, wh ere its movement around Earth will match the rate of the planet's rotation, giving the spacecraft constant coverage over Europe.

(https://img.novosti-kosmonavtiki.ru/126520.jpg)
Artist's concept of the BulgariaSat 1 satellite in orbit. Credit: SSL

In an interview with Spaceflight Now before the launch, he credited SpaceX's cost-cutting ways with making space accessible for small nations and money-conscious companies like his own.

"People don't realize that, for small countries and small companies like us, without SpaceX, there was no way we would ever be able to even think about space," Zayakov said. "With them, it was possible. We got a project. I think, in the future, it's going to be even more affordable because of reusability."

The BulgariaSat 1 project cost $235 million, Zayakov said, including the purchase of the satellite from Space Systems/Loral, launch services, insurance and ground systems.

"The satellite is a huge thing," he said. "It's a big milestone and gives us a chance for regional development, more presence in the region, as well as throughout Europe, wh ere we have our main coverage. For the country ... It's the first geostationary communications satellite. It also is going to utilize our national orbital slot, which is important."

The terms of the satellite contract made SSL responsible for booking the launch with SpaceX, along with procuring insurance coverage, and BulgariaSat will take control of the spacecraft once it is ready to begin service in orbit.

Zayakov said BulgariaSat saw no financial benefit from swapping a new rocket for a used one, and any discount in the deal went to SSL.

"SSL engineers who work with all the launch providers were involved in this case, and they were convinced of the overall reliability of the booster to reuse it," Zayakov said in an interview.

Bulsatcom's satellite television channels will be broadcast through BulgariaSat 1 into homes and businesses across Bulgaria. A Bulsatcom subsidiary in neighboring Serbia will also relay TV channels through BulgariaSat 1.

"The significance is the project is of a big size for small country, and a relatively small company by world standards," Zayakov said. "We now have about 900,000 subscribers between Bulgaria and the adjacent country of Serbia, and that is something, but in the grand scheme of things, compared with large companies, we're not that big."

Bulsatcom currently leases transponders on Hellas-Sat 2, a 14-year-old satellite launched from Cape Canaveral on an Atlas 5 rocket in 2003. BulgariaSat 1 will add significantly more capacity to the company's network capacity.

"TV is the focus," Zayakov said of BulgariaSat 1. "We're trying to provide much higher quality and much better quantity of services to our customers, not only in our country, but also in the region, and trying to expand. Certainly, more HDTV and some 4K channels.

"4K is beautiful, of course, for sports," he added. "We don't have anything in 4K whatsoever right now. This is an opportunity right there."

BulgariaSat 1's launch was previously pushed back from June 15, first by delays in a preceding Falcon 9 launch, then to replace a pneumatic valve on the rocket's payload fairing, the composite shroud that covered the satellite during the first few minutes of flight.

The smooth flight Friday sets the stage for another Falcon 9 mission — an all-new vehicle — set for blastoff at 4:25 p.m. EDT (2025 GMT; 1:25 p.m. PDT) Sunday from Space Launch Complex 4-East at Vandenberg. The launcher will deliver 10 more satellites to join Iridium's upgraded mobile voice and data relay network, comprising dozens of spacecraft orbiting a few hundred miles up.

SpaceX has not launched two Falcon 9 rockets in such a short timespan before.

The next Falcon 9 mission from Florida is scheduled some time next month with the Intelsat 35e communications satellite.

[свернуть]

Цитироватьdfln пишет: 

ЦитироватьSGS_67 пишет: 
Э-э, уважаемый.
Здесь вы также промахнулись.

Да нет, это вы промахнулись.

Цитировать Тема обсосана многократно, в т.ч. на реддите. К единому мнению так и не пришли.

ЦитироватьКак бы там ни было, стрелки переводить не надо, т.к. сути сказанного мною это не меняет. 

ЦитироватьSGS_67
Сбой в трансляции сигнала происходит из-за вибрации .
В электронных схемах существует т.н. "микрофонный эффект".

ЦитироватьMoss пишет:

ЦитироватьSGS_67
Сбой в трансляции сигнала происходит из-за вибрации .
В электронных схемах существует т.н. "микрофонный эффект".

Трансляция пропадает не только с самой ракете, но и с баржу. Слишком поражающая получатся ета вибрация.

Цитировать (https://img.novosti-kosmonavtiki.ru/69029.jpg) SpaceX‏Подлинная учетная запись @SpaceX (https://twitter.com/SpaceX) 3 ч. назад (https://twitter.com/SpaceX/status/878485565649207301)

More photos from today's Falcon 9 launch → http://flickr.com/spacex  (https://t.co/095WHX44BX)
(https://img.novosti-kosmonavtiki.ru/163942.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/185421.jpg) Spaceflight101‏ @Spaceflight101 (https://twitter.com/Spaceflight101) 33 мин. назад (https://twitter.com/Spaceflight101/status/878554676358258688)

Showing BulgariaSat-1 & #Falcon9 (https://twitter.com/hashtag/Falcon9?src=hash) Stage 2 in orbits of 212 x 65,512 and 210 x 65,341 Kilometers, 24°. Confirming a nominal SSTO injection.

ЦитироватьИскандер пишет:
Рутина. Шоу становится скучным.
Пора вторую ступень возвращать.
Да хоть бы с обтекателем окончательно разобрались. :/

ЦитироватьНо за то, что запуск состоится завтра я всё равно не дам и порваного доллара!

ЦитироватьSGS_67 пишет:

Цитироватьmakandser пишет:
Для сравнения условий возвращения ступеней (данные из вебкастов):

 CRS-11 (посадка на землю ) vs BulgariaSat-1 (самая сложная на платформу)
Скорость при расстыковке: 6000 км/ч vs 8500 км/ч
Скорость перед entry burn: 4500 км/ч vs 8600 км/ч
Скорость после entry burn: 3500 км/ч vs 6600 км/ч

Просто поразительно, если не врут...
До этого при запуске га ГПО были были числа примерно на 10% меньше.
Нагрузки возрасли примерно на 20% относительно предыдущего максимума.

ЦитироватьИскандер пишет:
Рутина. Шоу становится скучным.

Цитироватьdfln пишет:

ЦитироватьSGS_67 пишет:
Это говорит лишь о том, что среди обсасывающих не было спеца по виброустойчивости приёмо-передающих электронных устройств.
Я тож не прям в жилу, но с подобными эффектами, и борьбой с ними, по работе приходилось сталкиваться.

Что можно почитать по этой теме?

ЦитироватьElon Musk‏Verified account @elonmusk (https://twitter.com/elonmusk)  3h3 hours ago (https://twitter.com/elonmusk/status/878828849722671104)

Replying to @EcoHeliGuy (https://twitter.com/EcoHeliGuy)

Rocket was suddenly slammed sideways right before landing. Heavy gust or something malfunctioned onboard. Reviewing telemetry.

ЦитироватьSGS_67 пишет:
С теорией возиться не рекомендую - она даёт только значения для абстрактного кристалла заданного среза, тогда как на практике G-чувствительность определяется, по большей части, конструктивным исполнением резонатора.
Хорошие генераторы имеют чувствительность порядка 1е-9 f/g , где f - частота генерации.
"Бытовые" - 1е-7 - 1е-8. Особого исполнения - 1е-10 - 1е-11, и даже ниже, но таких у Маска точно нет. :)

ЦитироватьИ поверьте - тряска баржи и вибрации генератора с кв. резонатором при посадке бустера это вообще ничто по сравнению с требованиями по стойкости резонаторов в испытаниях на вибрацию.

Судя по всему причина отключения радиоканала в другом - например отклонение антенны , я не знаю, но кварцевые резонаторы и генераторы из объяснения надо исключить напрочь.

ЦитироватьDiZed пишет:
я бы был уверен, что у них просто антенну изгибает или сносит потоком газов.. но чтобы раз за разом - и не приняли мер?.. фиг их знает. тряской камеры они совсем тоже не заморачивают

ЦитироватьSSL SATELLITE BUILT FOR BULGARIA SAT BEGINS MANEUVERS FOLLOWING LAUNCH ON PREVIOUSLY FLOWN SPACEX FALCON 9

Palo Alto, Calif. – June 26, 2017 — Space Systems Loral (SSL (http://www.sslmda.com/)), a leading provider of innovative satellites and spacecraft systems, today announced that the BulgariaSat-1 satellite, designed and built for Bulgaria Sat, an affiliate of Bulsatcom (http://www.bulsat.com/), which is a leading telecommunications company and the largest provider of pay-TV services in Bulgaria, was launched on Friday from Cape Canaveral, Florida, and is successfully performing post-launch maneuvers according to plan. The satellite deployed its solar arrays on schedule following its launch aboard a previously flown SpaceX (http://www.spacex.com/) Falcon 9 (http://www.spacex.com/falcon9), and has started firing its main thruster to propel itself toward its final circular orbit in the geostationary arc.

Спойлер

"I would like to congratulate Bulgaria Sat on the successful launch of its first satellite, and for making history as the first Bulgarian company to operate a satellite," said John Celli (http://sslmda.com/html/aboutssl/j_celli.html), president of SSL. "Thank you to the teams at Bulgaria Sat, SpaceX, and SSL, which worked closely together to make this launch a success."

BulgariaSat-1 will provide high quality Direct-to-Home television and telecommunications services in the Balkans and other European regions. It is equipped with 30 Ku-band BSS transponders to broaden the availability of advanced television services such as high definition television. Once it goes into service, the satellite will be located at 1.9° East longitude.

"BulgariaSat-1 will expand our reach and reinforce our position as the leading provider of high quality direct-to-home TV services in Bulgaria and in the South East European region," said Maxim Zayakov, chief executive officer of Bulgaria Sat. "My thanks goes to the Bulgaria Sat team as well as to SSL and SpaceX for being supportive partners from the time that this satellite was just an idea until now. It is hugely exciting that we are finally launched and headed toward GEO orbit and we look forward to providing service that will broaden the availability of HDTV in the region."

Based on the powerful SSL 1300 (http://www.sslmda.com/html/products/1300.html) platform, the satellite is designed to provide service for 15 years or more. The satellite was the second commercial launch on a previously flown Falcon 9 rocket and helps to prove the value of launch vehicle reuse.

About Bulgaria Sat and Bulsatcom
Bulgaria Sat is an affiliate of Bulsatcom, which is a leading telecommunications company and the largest provider of pay-TV services in Bulgaria. Bulgaria Sat is the only satellite operator and the country's innovator in space industry, providing reliable and secure satellite communications solutions to broadcast, telecom, corporate and government customers. Bulgaria Sat is headquartered in Sofia, Bulgaria.
 
Bulsatcom is the largest pay-TV provider in Bulgaria, providing more than 100 digital TV channels – including exclusive content – as well as broadband internet access. Bulsatcom's leading market position is based on outstanding customer support and high-quality broadcast services.

About SSL
Space Systems Loral (SSL (http://www.sslmda.com)) is a leading provider of commercial satellites with broad expertise to support satellite operators and innovative space related missions. The company designs and manufactures spacecraft for services such as direct-to-home television, video content distribution, broadband internet, mobile communications, and Earth observation. As a Silicon Valley innovator for 60 years, SSL's advanced product line also includes state-of-the-art small satellites, and sophisticated robotics and automation solutions for remote operations.  For more information, visit www.sslmda.com (http://www.sslmda.com/).
 
 
Forward-Looking Statements
This news release contains forward-looking statements and information, which reflect the current view of Space Systems Loral (SSL) with respect to future events and financial performance. When used in this news release, the words "believes", "expects", "plans", "may", "will", "would", "could", "should", "anticipates", "estimates", "project", "intend" or "outlook" or other variations of these words or other similar expressions are intended to identify forward-looking statements and information. Actual results may differ materially from the expectations expressed or implied in the forward-looking statements as a result of known and unknown risks and uncertainties. Known risks and uncertainties include but are not limited to: risks associated with operating satellites and providing satellite services, including satellite construction or launch delays, launch failures, in-orbit failures or impaired satellite performance; risks associated with satellite manufacturing, including competition, cyclicality of SSL's end-user markets, contractual risks, creditworthiness of customers, performance of suppliers and management of SSL's factory and personnel; risk associated with financial factors such as volatility in exchange rates, increases in interest rates, restrictions on access to capital, and swings in global financial markets; risks associated with domestic and foreign government regulation, including export controls and economic sanctions; and other risks, including litigation. The foregoing list of important factors is not exhaustive. The information contained in this news release reflects SSL's beliefs, assumptions, intentions, plans and expectations as of the date of this news release. Except as required by law, SSL disclaims any obligation or undertaking to update or revise the information herein.

# # #

Media Contact:

SSL
 Wendy Lewis
 Director of Communications
 Wendy.Lewis@sslmda.com (mailto:Wendy.Lewis@sslmda.com)
 +1 (650) 852-5188

[свернуть]

ЦитироватьАлександр Писецкий пишет:
А самая очевидная причина это раскаленный ионизированный газ, который экранирует радиоволны. Здесь уже упоминалась эта причина.

ЦитироватьDiZed пишет:
на той стадии, когда теряется картинка

Цитироватьtestest пишет:
На той стадии, когда теряется картинка, ракета находится гораздо ниже, чем мы это видим на экране.

Цитироватьdfln пишет:
Сами Спейсы причиной называют не волны или плазму, а высокий уровень вибраций

ЦитироватьDiZed пишет:
я им конечно верю ; ) - но странно мне, что когда все 9 меринов на подъеме работают, и скоростной напор идет - никаких вибраций и проблем с антеннами. на второй ступени камера стоит ну вот прямо около работающего мерина - и хоть бы хны, кристальная картинка

ЦитироватьGrus пишет:
Что за антенны около пускового стола?

Цитироватьdfln пишет:
Спасибо за инфу. По поводу трансляции с баржи - она прерывается периодически ещё до старта falcon9 а так же задолго до посадки ракеты в одной из трансляций пуска. Это заметно в тех случаях, когда были сильные волны. Вот отсюда и версия о потере наведения антенны

Цитироватьandr59 пишет:

ЦитироватьSGS_67 пишет:
С теорией возиться не рекомендую - она даёт только значения для абстрактного кристалла заданного среза, тогда как на практике G-чувствительность определяется, по большей части, конструктивным исполнением резонатора.
Хорошие генераторы имеют чувствительность порядка 1е-9 f/g , где f - частота генерации.
"Бытовые" - 1е-7 - 1е-8. Особого исполнения - 1е-10 - 1е-11, и даже ниже, но таких у Маска точно нет.  :)  

Дико извиняюсь, в прошлой жизни как раз разрабатывал кварцевые резонаторы, но в основном для фильтров.
Генераторные резонаторы - простейшие, подавление нежелательных резонансов порядка 3-6 децибел,,

Цитировать но низкое сопротивление ( уже не помню - 3- 5 ом)

Цитировать Для резонаторов для фильтров наоборот - ослабление нежелательных резонансов (ОНР) порядка 40-45 дБ, но сопротивление порядка 20- 50 ом, поэтому вообще лучше в таких случаях говорить о добротности.

ЦитироватьТак вот - конструктивное исполнение кварцевого резонатора всегда стандартное.

Цитировать ( Здесь речь идет видимо о резонаторах с кристаллическим элементом АТ-среза , то есть повернутого относительно оси Z на 35 с минутами градуса - минуты выбираются для того, чтобы обеспечить требования по температурно- частотной характеристике.)

ЦитироватьИ поверьте - тряска баржи и вибрации генератора с кв. резонатором при посадке бустера это вообще ничто по сравнению с требованиями по стойкости резонаторов в испытаниях на вибрацию.

ЦитироватьСудя по всему причина отключения радиоканала в другом - например отклонение антенны , 

Цитироватья не знаю, но кварцевые резонаторы и генераторы из объяснения надо исключить напрочь.

ЦитироватьDiZed пишет: 
да, мне тоже воздействие вибраций на электронику представляется крайне маловероятным.

ЦитироватьDiZed пишет: 
ну да, но даже если задержка порядка секунд - все самое жесткое по температуре должно происходить следом за reentry burn, его картинка бы и зафризила. на последнем пуске потеря связи была, когда внизу уже показалась платформа; с учетом задержки - м.б. эти кадры ступень передавала как раз во время посадки, возможно - в момент касания.. кстати - не фонтан ли брызг нарушает связь

ЦитироватьDiZed пишет:
я им конечно верю ; ) - но странно мне, что когда все 9 меринов на подъеме работают, и скоростной напор идет - никаких вибраций и проблем с антеннами.

Цитироватьandr59 пишет:
Если Маск использует кристаллические элементы резонаторов другого среза, может быть SC срез - это просто двухповернутый срез, который требует термостатирования, содержания при определенной температуре - это опять же никак не влияет на уходы частоты при вибрациях.

ЦитироватьSGS_67 пишет: 

ЦитироватьDiZed пишет:
я им конечно верю ; ) - но странно мне, что когда все 9 меринов на подъеме работают, и скоростной напор идет - никаких вибраций и проблем с антеннами.

А вам не кажется, что там вибрации на порядок меньше, чем при спуске?

ЦитироватьSGS_67 пишет:

ЦитироватьDiZed пишет:
ну да, но даже если задержка порядка секунд - все самое жесткое по температуре должно происходить следом за reentry burn, его картинка бы и зафризила. на последнем пуске потеря связи была, когда внизу уже показалась платформа; с учетом задержки - м.б. эти кадры ступень передавала как раз во время посадки, возможно - в момент касания.. кстати - не фонтан ли брызг нарушает связь

Чушь полная...
Передача идёт в реалтайме, там максимум полста миллисекунд на обработку-передачу кадра.

Цитироватьmakandser пишет:

Наверное предполагаются "страшные резонансные колебания" от одновременной работы 9 двигателей  :)  

Цитировать (https://pbs.twimg.com/profile_images/867717631784235013/k8xIyfzp_bigger.jpg) Julia Bergeron‏ @julia_bergeron (https://twitter.com/julia_bergeron) 3 ч. назад (https://twitter.com/julia_bergeron/status/879533987915497472)

Go Searcher is back at #PortCanaveral (https://twitter.com/hashtag/PortCanaveral?src=hash) ahead of #BulgariaSat1 (https://twitter.com/hashtag/BulgariaSat1?src=hash) booster arrival via #OCISLY (https://twitter.com/hashtag/OCISLY?src=hash) @SpaceX (https://twitter.com/SpaceX)
(https://img.novosti-kosmonavtiki.ru/164139.jpg)

ЦитироватьDiZed пишет: 

ЦитироватьSGS_67 пишет: 

ЦитироватьDiZed пишет: 
ну да, но даже если задержка порядка секунд - все самое жесткое по температуре должно происходить следом за reentry burn, его картинка бы и зафризила. на последнем пуске потеря связи была, когда внизу уже показалась платформа; с учетом задержки - м.б. эти кадры ступень передавала как раз во время посадки, возможно - в момент касания.. кстати - не фонтан ли брызг нарушает связь

Чушь полная...
Передача идёт в реалтайме, там максимум полста миллисекунд на обработку-передачу кадра.

не думаю, что они гонят в канал полный поток raw video;

Цитировать для межкадровой компрессии же в буфере нужно держать несколько кадров, чем больше - тем лучше.

Цитировать

Цитировать полста ms - это приемлемая оценка, но это полсекунды, достаточно для заметного отставания картинки от реальности

Цитировать9 двигателей без всяких резонансов дадут +10 Дб против одного на посадке; плюс он дросселирован

ЦитироватьSGS_67 пишет:

ЦитироватьSGS_67 пишет:
Как раз конструктив корпуса, подвес пьезопластины и составляет ноу-хау, защищённое сотнями патентов у десятков крупных произаводителей.
Наилучшие резонаторы вообще имеют бесконтактный подвес, и левитируют в вакууме между злектродами.

ЦитироватьSGS_67 пишет:
Поверьте - Вы не понимаете, о чём пишете.

ЦитироватьSGS_67 пишет:
Лучшие имеют вакуум-плотный корпус, и неровности поверхности порядка одного атомного слоя.
В фильтрах такого не требуется, няз.

ЦитироватьSGS_67 пишет:
Как раз конструктив корпуса, подвес пьезопластины и составляет ноу-хау, защищённое сотнями патентов у десятков крупных произаводителей

ЦитироватьDiZed пишет:
можно сжимать последний кадр только на основании предыдущих, но если в обработке будут участвовать и последующие - эффективность будет выше.

Цитировать задержка на величину буфера - обычное дело, кроме тех случаев, когда ее нужно минимизировать. 

Цитироватьбочка практически так же пуста уже во время тормозного импульса

Цитироватьandr59 пишет:

ЦитироватьSGS_67 пишет:
Как раз конструктив корпуса, подвес пьезопластины и составляет ноу-хау, защищённое сотнями патентов у десятков крупных произаводителей.
Наилучшие резонаторы вообще имеют бесконтактный подвес, и левитируют в вакууме между злектродами.

особенно понравился "бесконтакный подвес" и левитация между электродами...

Цитироватьandr59 пишет:

ЦитироватьSGS_67 пишет:
Лучшие имеют вакуум-плотный корпус, и неровности поверхности порядка одного атомного слоя.
В фильтрах такого не требуется, няз.

Н-да. Если речь не идет о низкочастотных резонаторах на частоты порядка 1 Мгц, а о резонаторах частотного диапазона выше 15 МГц достаточно шлифованной поверхности кристаллического элемента...

Цитировать - низкое сопротивление определяется диаметром электрода и при диаметре пластины в 6 мм этот электрод диаметром в 3 мм вполне обеспечивает 3-6 ом сопротивления при ослаблении неж. резонансов в 3-6 дБ.

ЦитироватьЧто касается фильтровых резонаторов, то у них из за так называемой теории захвата энергии значительно меньшие диаметры электродов, которые при определенной массонагрузке электродов дают ослабление неж. резонансов выше 45 дБ. Для того, чтобы они дышали, необходима полированная поверхность, только тогда можно обеспечить сопротивление не выше 20-40 ом при добротности в 120 тыс.

Цитироватьandr59 пишет: 

ЦитироватьSGS_67 пишет: 

ЦитироватьКак раз конструктив корпуса, подвес пьезопластины и составляет ноу-хау, защищённое сотнями патентов у десятков крупных произаводителей

Ага, одно из двух -- или крепят эластосилом и распаивают или опять же крепление в двух точках с помощью пайки или клея в точках до которых по теории не должны дойти колебания..( сотни патентов....!)

ЦитироватьЛадно , сдаюсь , ваша взяла...

ЦитироватьSGS_67 пишет:

 https://doc.lagout.org/Others/Information%20Theory/Compression/Real-Time%20Video%20Compression%20Techniques%20and%20Algorithms%20-%20Raymond%20Westwater.pdf

ЦитироватьDiZed пишет: 

ЦитироватьSGS_67 пишет: 

https://doc.lagout.org/Others/Information%20Theory/Compression/Real-Time%20Video%20Compression%20Techniques%20and%20Algorithms%20-%20Raymond%20Westwater.pdf 

вы как всегда ; ) произносите слова только потому что они вам кажутся длинными и красивыми, не озаботившись разобраться с их смыслами-значениями и заглянуть в собственную ссылку.
почитайте - именно там - про структуру алгоритмов кодирования. вот например

B frames (bidirectional or interpolated frames) are coded using two reference frames, a past and a 
future frame (which can be I or P frames). Bidirectional, or interpolated coding provides the highest
amount of compression 

Цитироватьи поймите, что кодирование B-фреймов не может начаться, пока в буфере не окажется 2 
опорных I/P фрейма, первый и последний.

Цитировать Т.е. первый B - фрейм не может появиться на выходе раньше последнего в этом блоке I/P фрейма, задержка не может быть меньше чем число кадров в таком блоке.

Цитировать При этом для увеличения эффективности I/P фреймы стараются вставлять в поток как можно реже.

Цитировать в свою очередь, декодирование первого B-фрейма не может начаться раньше поступления в декодер последнего опорного; соответственно увидеть вы его можете только с удвоенной задержкой.

Цитировать мне казалось, что уж этот принцип-то с опорными кадрами вообще всем известен, кто хоть когда хоть что-то пытался с видео делать.

Цитироватьи да, я не могу не повториться: судя по всему, вы катастрофически невежественны, но с апломбом пытаетесь вещать о вещах, о которых имеете либо мифологическое преставление, либо нахватались вершков. это я не чтобы вас уязвить пишу, а для вящей информационной безопасности окружающих

ЦитироватьSGS_67 пишет:

Цитировать (https://pbs.twimg.com/profile_images/867717631784235013/k8xIyfzp_bigger.jpg) Julia Bergeron‏ @julia_bergeron (https://twitter.com/julia_bergeron) 2 мин. назад (https://twitter.com/julia_bergeron/status/880372501959901184)

Look who came to say good morning! #OCISLY (https://twitter.com/hashtag/OCISLY?src=hash) is on the horizon and still standing. @SpaceX (https://twitter.com/SpaceX) @NASASpaceflight (https://twitter.com/NASASpaceflight)
(https://img.novosti-kosmonavtiki.ru/163936.jpg)

Цитировать (https://pbs.twimg.com/profile_images/867717631784235013/k8xIyfzp_bigger.jpg) Julia Bergeron‏ @julia_bergeron (https://twitter.com/julia_bergeron) 58 мин. назад (https://twitter.com/julia_bergeron/status/880406674955264001)

Welcome home #OCISLY (https://twitter.com/hashtag/OCISLY?src=hash) You have new hardware on board! #Roomba (https://twitter.com/hashtag/Roomba?src=hash) Wave to the team everybody!
(https://img.novosti-kosmonavtiki.ru/163961.jpg)

Цитировать (https://pbs.twimg.com/profile_images/867717631784235013/k8xIyfzp_bigger.jpg) Julia Bergeron‏ @julia_bergeron (https://twitter.com/julia_bergeron) 48 мин. назад (https://twitter.com/julia_bergeron/status/880409541845946369)

A better shot of #Octograbber (https://twitter.com/hashtag/Octograbber?src=hash) #bargex (https://twitter.com/hashtag/bargex?src=hash) from my camera.
(https://img.novosti-kosmonavtiki.ru/163962.jpg)

Цитировать (https://pbs.twimg.com/profile_images/867717631784235013/k8xIyfzp_bigger.jpg) Julia Bergeron‏ @julia_bergeron (https://twitter.com/julia_bergeron) 31 мин. назад (https://twitter.com/julia_bergeron/status/880414256939892736)

A shot with a little more leg. #bargex (https://twitter.com/hashtag/bargex?src=hash) #Octograbber (https://twitter.com/hashtag/Octograbber?src=hash) @Avron_p (https://twitter.com/Avron_p) @NASASpaceflight (https://twitter.com/NASASpaceflight) Please credit or tag me in photo use.
(https://img.novosti-kosmonavtiki.ru/163946.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/185999.jpg) Michael Seeley‏ @Mike_Seeley (https://twitter.com/Mike_Seeley) 16 мин. назад (https://twitter.com/Mike_Seeley/status/880420558386733058)

"Roomba" (or whatever we're calling it) deployment: confirmed, as the #SpaceX (https://twitter.com/hashtag/SpaceX?src=hash) #BulgariaSat1 (https://twitter.com/hashtag/BulgariaSat1?src=hash) #Falcon9 (https://twitter.com/hashtag/Falcon9?src=hash) returns to port Thursday AM.
(https://img.novosti-kosmonavtiki.ru/163950.jpg)
(https://img.novosti-kosmonavtiki.ru/163951.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/186117.jpg) Scott M‏ @Restrantek (https://twitter.com/Restrantek) 24m ago (https://twitter.com/Restrantek/status/880418883353665536)

Arrived. #OCISLY (https://twitter.com/hashtag/OCISLY?src=hash) #Falcon9 (https://twitter.com/hashtag/Falcon9?src=hash) #BulgariaSat1 (https://twitter.com/hashtag/BulgariaSat1?src=hash) @SpaceX (https://twitter.com/SpaceX) @SpaceNews360 (https://twitter.com/SpaceNews360)
(https://img.novosti-kosmonavtiki.ru/163948.jpg)

Цитировать (https://pbs.twimg.com/profile_images/867717631784235013/k8xIyfzp_bigger.jpg) Julia Bergeron‏ @julia_bergeron (https://twitter.com/julia_bergeron) 8 мин. назад (https://twitter.com/julia_bergeron/status/880428781130874880)

I am told this is a new style of cap. Silver. Still waiting for that event to happen. #bargex (https://twitter.com/hashtag/bargex?src=hash) @NASASpaceflight (https://twitter.com/NASASpaceflight) @murphypak (https://twitter.com/murphypak)
(https://img.novosti-kosmonavtiki.ru/163958.jpg)

ЦитироватьOCISLY & B1029.2, Port Canaveral, Kevin Frack‎ @ SpaceX FB Gro

Цитировать (https://pbs.twimg.com/profile_images/867717631784235013/k8xIyfzp_bigger.jpg) Julia Bergeron‏ @julia_bergeron (https://twitter.com/julia_bergeron) 9 мин. назад (https://twitter.com/julia_bergeron/status/880434111491579904)

Getting ready to cap @ToastyFalcon9 (https://twitter.com/ToastyFalcon9) #bargex (https://twitter.com/hashtag/bargex?src=hash) @NASASpaceflight (https://twitter.com/NASASpaceflight)
(https://img.novosti-kosmonavtiki.ru/163959.jpg)

Цитировать (https://pbs.twimg.com/profile_images/867717631784235013/k8xIyfzp_bigger.jpg) Julia Bergeron‏ @julia_bergeron (https://twitter.com/julia_bergeron) 35m ago (https://twitter.com/julia_bergeron/status/880450133258899462)

Progressing along. #bargex (https://twitter.com/hashtag/bargex?src=hash) @SpaceX (https://twitter.com/SpaceX) @NASASpaceflight (https://twitter.com/NASASpaceflight)
(https://img.novosti-kosmonavtiki.ru/163944.jpg)

Цитировать (https://img.novosti-kosmonavtiki.ru/186015.jpg) Stephen C. Smith‏ @SpaceKSCBlog (https://twitter.com/SpaceKSCBlog) 1 ч назад (https://twitter.com/SpaceKSCBlog/status/880449763744854017)

I spy with my @SpaceX (https://twitter.com/SpaceX) eye ...
(https://img.novosti-kosmonavtiki.ru/163945.jpg)

ЦитироватьSGS_67 пишет:
Возможно, и с антенной накасячили, выбрав остронаправленную для передачи на геостационар.
Которая теряет спутник при волнении.

Цитировать (https://pbs.twimg.com/profile_images/867717631784235013/k8xIyfzp_bigger.jpg) Julia Bergeron‏ @julia_bergeron (https://twitter.com/julia_bergeron) 1h ago (https://twitter.com/julia_bergeron/status/880509387462332416)

We are off the deck #bargex (https://twitter.com/hashtag/bargex?src=hash) @NASASpaceflight (https://twitter.com/NASASpaceflight)
(https://img.novosti-kosmonavtiki.ru/163974.jpg)


55m ago (https://twitter.com/julia_bergeron/status/880513168409337857)

Hovering over the stand. #bargex (https://twitter.com/hashtag/bargex?src=hash)
(https://img.novosti-kosmonavtiki.ru/163963.jpg)


51m ago (https://twitter.com/julia_bergeron/status/880514598566207488)

Soooo....ummm....this could be a bit of a problem for the stand. #bargex (https://twitter.com/hashtag/bargex?src=hash)
(https://img.novosti-kosmonavtiki.ru/163964.jpg)

Цитировать (https://pbs.twimg.com/profile_images/867717631784235013/k8xIyfzp_bigger.jpg) Julia Bergeron‏ @julia_bergeron (https://twitter.com/julia_bergeron) 49m ago (https://twitter.com/julia_bergeron/status/880515972515459073)

And we are landed at the stand. #bargex (https://twitter.com/hashtag/bargex?src=hash)
(https://img.novosti-kosmonavtiki.ru/163965.jpg)

ЦитироватьDiZed пишет: 

ЦитироватьSGS_67 пишет: 

вы прочитали собственную ссылку; неплохо. вы таки и не поняли некоторые моменты,

Цитировать - пытаетесь буквально интерпретировать название P-кадров, 

Цитироватьмутите с задержками - это хуже. вы выкручиваетесь - это совсм плохо;

Цитировать прежде вам случалось вести себя более достойно. ну если вам хочется совершать репутационный суицид (видимо как истиному самураю - вместе с отечественной космонавтикой ; ) - дело хозяйское; помогать вам в этом особого желания нет, вы и сам справляетесь. удачи

Цитироватьthunder26 пишет:

ЦитироватьSGS_67 пишет:
Возможно, и с антенной накасячили, выбрав остронаправленную для передачи на геостационар.
Которая теряет спутник при волнении.

Отечественные разработчики станций корабельной спутниковой связи открывают шампанское - наконец-то Маск повержен

ЦитироватьSpaceX - In Port - BulgariaSat-1 - 4K - 06-29-2017

 (https://img.novosti-kosmonavtiki.ru/220769.jpg)  (https://www.youtube.com/channel/UC5hWqb0u1eKgYmVryCEyJYA) USLaunchReport (https://www.youtube.com/channel/UC5hWqb0u1eKgYmVryCEyJYA)

Опубликовано: 29 июн. 2017 г.

SpaceX toughest and successful landing. Merlin engines appear close to the deck. In the video, you will see Falcon 9 Booster in the far right aft corner. For coming in so hot, still a perfectly good booster.

ЦитироватьSGS_67 пишет:
Поверхность пьезоэлемента, вообще-то, полируется.
И чистота поверхности как раз определяет качество резонатора.

ЦитироватьSGS_67 пишет:
Батенька, мне приходилось общаться с кварцеведами, которые вручную делали фильтры с добротностью порядка 3-5 миллионов на частотах до 10 мегагерц. Но это была штучная продукция.

Вы, думаю, о таких даже не слышали.

ЦитироватьSGS_67 пишет:

Цитироватьthunder26 пишет:

ЦитироватьSGS_67 пишет:
Возможно, и с антенной накасячили, выбрав остронаправленную для передачи на геостационар.
Которая теряет спутник при волнении.

Отечественные разработчики станций корабельной спутниковой связи открывают шампанское - наконец-то Маск повержен

Точно.
Поскольку отечественным разработчикам корабельной спутниковой связи удалось обеспечить бесперебойность видеотрансляции при посадке ракеты на судно ещё в прошлом веке.  :D  

А Маск, вместо того, чтоб вгрохать в столь жизненно необходимую разработку миллионы долларов, предпочитает пользоваться аппаратурой "бытового" сегмента.
Нищеброд, чо...
.

ЦитироватьSpaceX - Intelsat 35e - Static Fire Test - Plus 06-29-2017

 (https://img.novosti-kosmonavtiki.ru/220769.jpg)  (https://www.youtube.com/channel/UC5hWqb0u1eKgYmVryCEyJYA) USLaunchReport (https://www.youtube.com/channel/UC5hWqb0u1eKgYmVryCEyJYA)

Цитироватьandr59 пишет:

ЦитироватьSGS_67 пишет:
Поверхность пьезоэлемента, вообще-то, полируется.
И чистота поверхности как раз определяет качество резонатора.

н-да, Вы конечно шеф в пьезотехнике, но полируется не всегда. И часто не всегда. Особенно для генераторных резонаторов.

ЦитироватьПонятно, что вы человек молодой и пылкий, поэтому оставлю вас в ваших находках..

Цитироватьandr59 пишет:
Ясен пень, тем более, что после катастрофы постигшей Фонон в Таджикистане все остальное - штучная работа.

ЦитироватьФильтровые резонаторы определяются, мой незнакомый друг, в большей степени подавлением нежелательных резонансов,

Цитироватьладно, считайте что вы победили

Цитировать и кристаллические элементы левитируют в вакууме. Это же надо придумать?

Цитироватьmakandser пишет:
Из одного из решётчатых рулей при посадке вырвало хорошенький кусок металла. Сразу становится понятно, что на новые титановые рули не просто для красоты перешли.

 Heavy damage to grid fin on BulgariaSat-1 first stage - Courtesy of /u/thedubya22 (https://imgur.com/a/WeILL)

ЦитироватьBulgariaSat-1 reached the Bulgarian position at the geostationary orbit

On July 3 at 9:30 am, the first Bulgarian geostationary communication satellite BulgariaSat-1 reached the Bulgarian position at the geostationary orbit. The Bulgarian teams in Sofia and Palo Alto took part in all necessary procedures for reaching and positioning the satellite. The last step before its fully operation strats, is the system tests that began on the day BulgariaSat-1 was positioned.

"The successful positioning of BulgariaSat-1 is another great achievement for our team, but also for Bulgaria and for our clients. If everything goes according to plan, BulgariaSat-1 will start broadcasting in the beginning of August", said Maxim Zayakov, CEO of Bulgaria Sat and Bulsatcom.

Спойлер

BulgariaSat-1 was launched by SpaceX in a supersynchronous transfer orbit which allowed the satellite to use less fuel to reach its position. The Bulgaria Sat team confirmed that thanks to it, the satellite will have life and fuel for more than 20 years.

The first Bulgarian geostationary communications satellite was launched by SpaceX on June 23 at 22.10 GMT from Launch Complex 39A (LC-39A) at NASA's Kennedy Space Center in Florida. BulgariaSat-1 will provide television and communication services directly to homes in the Balkans and other European regions. The satellite is suitable for 4G LTE network at 1800 MHz. In addition to television and communication services, BulgariaSat-1 can be used in force majeure – accidents due to natural disasters – earthquakes, storms, floods when land-based networks are not working.

[свернуть]

Цитироватьmakandser пишет:
 Ну и неограниченная многоразовость без техобслуживания.

Цитироватьmakandser пишет:
Маск пишет, что для ракеты этот фактор незначительный. (https://twitter.com/elonmusk/status/878824485280817153)

Основной позитивный эффект - улучшенный контроль ступени. Ну и неограниченная многоразовость без техобслуживания.

ЦитироватьМаксим Авраменко пишет:
Кто нибудь в курсе когда видео посадки выложат или они вообще не собираются этого делать.

ЦитироватьМаксим Авраменко пишет:
Судя по всему посадка была очень зрелищная.

ЦитироватьАлексей пишет:
Другой положительный эффект - новые рули дают возможность увеличить угол атаки, изменить профиль полета и снизить тепловой поток. Больше "самолетности"  :)  

Цитироватьmakandser пишет:
Маск пишет, что для ракеты этот фактор незначительный.

ЦитироватьA Falcon 9 second stage re-entered the atmosphere on November 2, 2017 after spending four and a half months slowly spiraling down toward the atmosphere from a Geostationary Transfer Orbit. The vehicle carried the 3,669-Kilogram BulgariaSat 1 into orbit as part of SpaceX's 15th Geotransfer Mission utilizing the Falcon 9 vehicle, also marking the second re-flight mission of a previously used first stage booster.