JCSat-14 – Falcon 9 – Канаверал SLC-40 – 06.05.2016 01:21 UTC

[Чуи]

Salo пишет:
https://www.nasaspaceflight.com/2016/04/falcon-9-booster-reuse-testing-ksc/ 

It will also be aiming to become the second stage to successfully land on the ASDS

Чуть кофе не подавился. Но нет, показалось...

[Salo]

http://spaceflightnow.com/launch-schedule/

May 5 • Falcon 9 • JCSAT 14
Launch window: 0522-0722 GMT (1:22-3:22 a.m. EDT)
 Launch site: SLC-40, Cape Canaveral Air Force Station, Florida
A SpaceX Falcon 9 rocket will launch the JCSAT 14 communications satellite for Tokyo-based SKY Perfect JSAT Corp. JCSAT 14 will support data networks, television broadcasters and mobile communications users in Japan, East Asia, Russia, Oceania, Hawaii and other Pacific islands. Delayed from late 2015, April 28, May 3 and May 4. [April 29]

[Salo]

http://spaceflightnow.com/2016/04/29/commercial-falcon-9-rocket-launch-scheduled-for-next-week/

Commercial Falcon 9 rocket launch scheduled for next week
April 29, 2016 Stephen Clark

SpaceX's next Falcon 9 rocket launch is set for no earlier than May 5, sources said Friday, with a Japanese television broadcasting satellite heading to orbit from Cape Canaveral.

The two-stage booster was scheduled to roll out of SpaceX's hangar to the Complex 40 launch pad this weekend for a static fire test of the rocket's nine Merlin 1D first stage engines as soon as Sunday afternoon.

The Falcon 9 launch team will load super-chilled RP-1 kerosene fuel and liquid oxygen into the rocket, run the booster through a mock countdown sequence, then ignite the nine first stage engines to throttle up to 1.5 million pounds of thrust for a few seconds while the Falcon 9 remains firmly restrained to the launch pad.

The test is a customary preflight check SpaceX conducts before every Falcon 9 launch.

If the static fire test goes as planned Sunday, managers will likely approve the May 5 launch date at a readiness review early next week.

The Falcon 9's launch window May 5 opens at 1:22 a.m. EDT (0522 GMT) and extends for two hours, according to a U.S. Air Force range schedule obtained by Spaceflight Now.

It will be the fourth Falcon 9 launch of the year.

The payload for next week's launch is JCSAT 14, a Japanese broadcasting platform made by Space Systems/Loral in Palo Alto, California.

"SSL is a world leader in satellite manufacturing, and a valuable partner in the expansion of our fleet," said Shinji Takada, representative director, president and CEO of SKY Perfect JSAT Corp., owner of JCSAT 14. "Our corporate goal is to protect safety and peace of mind while contributing to the formation of a vibrant society. We look forward to the launch of JCSAT 14, which helps to contribute to this overarching goal."

JCSAT 14 is fitted with C-band and Ku-band transponders to serve television broadcast, data networking and airborne and maritime Internet connectivity markets across Asia, Russia, Oceania and the Pacific islands, the company said.

SKY Perfect JSAT has two more satellites scheduled for liftoff later this year, one more with SpaceX and one with Arianespace.

Based in Tokyo, the company has 16 communications craft in operation and is the fifth largest commercial telecom satellite operator in the world, measured by revenue, and the biggest in Asia.

Officials pose with the JCSAT 14 satellite at the Space Systems/Loral factory in California. Credit: SSL

Beginning a 15-year service life, JCSAT 14 will begin operations in geostationary orbit at 154 degrees east longitude a couple of months after liftoff, replacing the aging JCSAT 2A satellite, which reached orbit in 2002 aboard an Ariane 4 rocket.

SpaceX has programmed the rocket's first stage to booster to head for the landing barge, or "drone ship," positioned several hundred miles east of Cape Canaveral. The JCSAT 14 satellite is headed for a high-altitude geostationary transfer orbit, requiring more speed and fuel than a mission to low Earth orbit.

That means there is a lesser chance of a successful touchdown than for missions like the April 8 flight with a space station resupply capsule, in which the Falcon 9's first stage nailed its first successful landing at sea, a major achievement for SpaceX's goal of making the rocket partially reusable.

Two more commercial Falcon 9 flights to geostationary transfer orbit will follow close behind JCSAT 14, meaning SpaceX plans more drone ship landings in the next couple of months. The Thaicom 8 telecommunications satellite is set for liftoff in late May, followed in mid-June by a tandem flight with two commercial broadcasting stations for Eutelsat and Asia Broadcast Satellite.

"JCSAT is pushing the envelope as a very hot and fast mission, so will land on the droneship," SpaceX founder and CEO Elon Musk tweeted Friday. "Next land landing in a few months."

[Pirat5]

Static Fire утром по МСК

Chris B - NSF‏@NASASpaceflight

Everyone keep an eye out for a SpaceX Falcon 9 taking a Sunday stroll to SLC-40 for her Static Fire.
Window <>1600-2200 Eastern.


ASDS landing
https://www.nasaspaceflight.com/2016/05/spacex-static-fire-jcsat-14-mission/

[Pirat5]

SpaceXПодлинная учетная запись‏@SpaceX
17:32 - 1 мая 2016 г.
Static fire complete, teams reviewing data. Falcon 9 launch of JCSAT-14 communications satellite targeting May 5 at 1:21am ET

[knezevolk]

[Apollo13]

https://twitter.com/flatoday_jdean/status/727245464639311878

James DeanVerified account‏@flatoday_jdean

SpaceX on next landing attempt: booster "will be subject to extreme velocities and re-entry heating, making a successful landing unlikely."

Бедный кораблик.

[Страшный Боковой Ветер]

Я так понимаю, снова будут без re-entry burn пробовать

[silentpom]

вес спутника известен?

[che wi]

https://www.facebook.com/SpaceX

[Страшный Боковой Ветер]

silentpom пишет:
вес спутника известен?

Данные еще не появились, но судя по профилю миссии, его вес примерно равен весу SES-9.  В принципе, он построен на базе платформы SSL-1300, так что его вес может до 6т доходить.

UPD. https://www.reddit.com/r/spacex/comments/4g6gy9/jcsat14_static_fire_set_for_29_april_possibly_30/
Тут по ссылке чел говорит, что отправил письмо с запросом в JSAT, ему ответили, что информация о массе закрытая. Далее в комментариях пишут, что судя по количеству транспондеров и т.д., масса в районе 5.5тонн.

[thunder26]

Deflang пишет:
Далее в комментариях пишут, что судя по количеству транспондеров и т.д., масса в районе 5.5тонн.

Если быть точнее, пишут от 3000 до 5500 кг.
Всего 26+18 стволов - маловато для  5 тонн. 
У АМ5 84 ствола и масса 3400.

[Salo]

Ben Cooper ‏@LaunchPhoto  18 ч.18 часов назад
Weather forecast now 80% go for early Thur Falcon 9 launch; 90% Friday if needed.

[Salo]

James Dean ‏@flatoday_jdean  16 ч.16 часов назад  
SpaceX on next landing attempt: booster "will be subject to extreme velocities and re-entry heating, making a successful landing unlikely."

[Искандер]

Launch and webcast info
SpaceX is targeting launch of JCSAT-14 from Space Launch Complex 40 at Cape Canaveral Air Force Station, Florida on May 5 (1:21am ET, 10:21pm PT, 5:21am UTC). SpaceX's Falcon 9 rocket will deliver JCSAT-14, a commercial communications satellite for SKY Perfect JSAT Corporation, to a Geostationary Transfer Orbit (GTO). Following stage separation, the first stage of Falcon 9 will attempt an experimental landing on the "Of Course I Still Love You" droneship. Given this mission's GTO destination, the first-stage will be subject to extreme velocities and re-entry heating, making a successful landing unlikely.

The launch webcast will go live about 20 minutes prior to liftoff.
For the hosted webcast, tune in http://www.spacex.com/webcast  or on YouTube: .
For the technical webcast, tune in here: .

[Salo]

James Dean ‏@flatoday_jdean  1 ч1 час назад  
No change in today's SpaceX launch weather forecast: 80% "go" for 1:21am EDT Thurs. liftoff of Falcon 9, JCSAT-14

[ВВК]

thunder26 пишет:
Если быть точнее, пишут от 3000 до 5500 кг.
Всего 26+18 стволов - маловато для5 тонн.
У АМ5 84 ствола и масса 3400.

А если сравнить зоны покрытия? Не поможет?

[thunder26]

ВВК пишет:

thunder26 пишет:
Если быть точнее, пишут от 3000 до 5500 кг.
Всего 26+18 стволов - маловато для5 тонн.
У АМ5 84 ствола и масса 3400.

А если сравнить зоны покрытия? Не поможет?

Причем тут зоны покрытия? Объясните свою мысль.

[ВВК]

thunder26 пишет:

ВВК пишет:

thunder26 пишет:
Если быть точнее, пишут от 3000 до 5500 кг.
Всего 26+18 стволов - маловато для5 тонн.
У АМ5 84 ствола и масса 3400.

А если сравнить зоны покрытия? Не поможет?

Причем тут зоны покрытия? Объясните свою мысль.

В том что, вроде светить он будет в местах, где наверно нет замысловатых границ этих зон и круг клиентов постоянен и уже определен и может они вообще кабельщики, тогда может и не надо такого количества стволов, а важнее САС и мощность потребляемая оборудованием  КА, оттуда и масса.

[thunder26]

ВВК пишет:
тогда может и не надо такого количества стволов, а важнее САС и мощность потребляемая оборудованием КА, оттуда и масса.

Везде используются ЛБВ одного класса, одних и тех же производителей (их в мире можно по пальцам пересчитать) с примерно равным КПД. Соответственно, количество стволов однозначно характеризует массу и энергопотребление. 
Увеличение САС за счет массы - экстенсивный путь.