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https://nextspaceflight.com/launches/details/2675

Цитата: undefinedStarlink V1 L20
Launch Time
NET Feb 25, 2021
...
B1058
Flight #6

на 25 февраля - 31 день

B1058	2020 May 30	Dragon-2 Demo-2
	2020 July 20	Anasis-II          51days
	2020 Oct 6	Starlink-12       78days
	2020 Dec 6	CRS-21            61days
	2021 Jan 24	Transporter-1   49days
	2021 Feb 25	Starlink-20       31days

https://nextspaceflight.com/launches/details/2675

ЦитироватьStarlink V1 L20
Launch Time
NET Mar 08, 2021

ЦитироватьRaul  @Raul74Cz
Launch Hazard Areas for #Starlink v1.0-L20 mission NET 08 March ~03:40 UTC, altern. 09 March. Identical areas to previous mission, with B1058.6 landing on usual location 634km downrange and S2 reentry south of Australia - double S2 burn launch profile.

ЦитироватьRaul  @Raul74Cz
New launch date for #Starlink v1.0-L20 NET 09 March ~03:20 UTC, alternatively 10 to 15 March, based on issued NOTMAR update.

ЦитироватьEmre Kelly  @EmreKelly
SpaceX is now looking at no earlier than Wednesday, March 10, for the next Starlink launch (21st / L20) from Cape Canaveral. Hazard area in effect from 1845 to 0000 ET.

ЦитироватьRaul  @Raul74Cz
#Starlink v1.0-L20 mission postponed to NET 10 March 02:58 UTC, backup dates 11 to 15 March, based on issued NOTAM update in MELBOURNE information region for Stage2 reentry.

прогноз Falcon 9 Starlink-L20 L-1 Day Forecast - 9 March Launch (https://www.patrick.spaceforce.mil/Portals/14/Weather/Falcon%209%20Starlink-L20%20L-1%20Forecast%20-%209%20Mar)
Вы не можете просматривать это вложение.
основной день = 90%, резервный = 80%

но полагаю, что это прогноз на старую дату пуска - на 9 марта по UTC.
так что ждём другой прогноз, на 10е по UTC

ЦитироватьSpaceX  @SpaceX
Falcon 9 launch of 60 Starlink satellites is targeted for tomorrow, March 9 at 9:58 p.m. EST from Florida. Weather is looking good for launch and landing

Вчерашний день

ЦитироватьWilliam Harwood  @cbs_spacenews
F9/Starlink 21 (V1-L20): SpaceX test fired the first stage engines of a Falcon 9 rocket at LC-40 today at 6pm EST (2300 GMT); test appeared normal; we'll now stand by for an update from SpaceX on plans to launch 60 Starlinks from the Cape Canaveral SFS Tuesday night

LAUNCH, LANDING, AND DEPLOYMENT

00:01:12	Max Q (moment of peak mechanical stress on the rocket)
00:02:32	1st stage main engine cutoff (MECO)
00:02:36	1st and 2nd stages separate
00:02:43	2nd stage engine starts
00:03:09	Fairing deployment
00:06:40	1st stage entry burn complete
00:08:24	1st stage landing
00:08:47	2nd stage engine cutoff (SECO-1)
00:45:31	2nd stage engine restarts
00:45:32	2nd stage engine cutoff (SECO-2)
01:04:28	Starlink satellites deploy

https://www.spacex.com/launches/index.html

https://spaceflightnow.com/2021/03/08/falcon-9-starlink-v10-l20-mission-status-center/

19:19. Stephen Clark
An updated weather forecast issued this morning by the U.S. Space Force's 45th Weather Squadron predicts a 90% chance of favorable conditions for liftoff of SpaceX's Falcon 9 rocket at 9:58 p.m. EST (0258 GMT) tonight.

The Falcon 9 is poised for launch from pad 40 at Cape Canaveral Space Force Station with 60 more Starlink internet satellites.

"Another partly cloudy day with gusty onshore winds tapering off after sunset is expected along the Space Coast," forecasters wrote this morning. "The primary weather concerns for a launch attempt this evening are liftoff winds and the cumulus cloud rule associated with the onshore flow."

At launch time, forecasters expect mostly clear skies, winds from the east-northeast at 15 to 20 mph, and a temperature of about 62 degrees Fahrenheit. There are low risks of violating upper level wind limits or booster recovery constraints in the Atlantic Ocean.

https://vk.com/spacex?w=wall-41152133_311022

⛔ Перенос запуска миссии Starlink-20 ⛔

SpaceX:
— Теперь мы нацелены на четверг, 11 марта в 11:13 МСК (8:13 UTC) для запуска миссии Starlink. Командам требуется дополнительное время для проверки перед запуском.

Falcon 9 Starlink-L20 L-1 Day Forecast - 11 March Launch (https://www.patrick.spaceforce.mil/Portals/14/Weather/Falcon%209%20Starlink-L20%20L-1%20Forecast%20-%2011%20Mar)
Вы не можете просматривать это вложение.
основной и резервный день - погода 80%

22:08  Stephen Clark
The pleasant weather on Florida's Space Coast is forecast to continue over the next few days, and the weather team at Cape Canaveral predicts a 90% chance of good conditions for launch of a Falcon 9 rocket at 3:13 a.m. EST (0813 GMT) Thursday.
"High pressure continues to dominate the area with persistent onshore flow," the U.S. Space Force's 45th Weather Squadron wrote in a forecast this morning. "Winds will be a little gustier during the maximum heating hours from mid-morning until sunset, while brief coastal showers are most likely from the early morning hours through noon. The primary weather concerns for a launch attempt early Thursday morning are liftoff winds and the cumulus cloud rule."
A Falcon 9 rocket is awaiting liftoff from pad 40 at Cape Canaveral Space Force Station with 60 more Starlink internet satellites.
The forecast calls for partly cloudy skies, winds from the east at 12 to 17 mph, and a temperature of about 60 degrees Fahrenheit.
The mission was previously set for launch Tuesday night, but SpaceX scrubbed the launch to take "some additional time for pre-launch checks," the company tweeted.
The mission will mark SpaceX's seventh Falcon 9 launch of the year, and the fifth Falcon 9 flight dedicated to the Starlink network.

Тишина какая-то.
Ждём Т-00:35:00 RP-1 (rocket grade kerosene) loading
=10:38мск

03/11/2021 09:05
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Good morning from the Kennedy Space Center. A SpaceX Falcon 9 rocket is standing a few miles away on pad 40 at Cape Canaveral Space Force Station awaiting liftoff at 3:13 a.m. EST (0813 GMT) with 60 more Starlink internet satellites.
Two additional SpaceX vessels were dispatched into the Atlantic Ocean to retrieve the payload fairing halves after this morning's launch.

T-00:38:00	SpaceX Launch Director verifies go for propellant load
00:35:00	RP-1 (rocket grade kerosene) loading underway
00:35:00	1st stage LOX (liquid oxygen) loading underway
00:16:00	2nd stage LOX loading underway
00:07:00	Falcon 9 begins engine chill prior to launch
00:01:00	Command flight computer to begin final prelaunch checks
00:01:00	Propellant tank pressurization to flight pressure begins
00:00:45	SpaceX Launch Director verifies go for launch
00:00:03	Engine controller commands engine ignition sequence to start
00:00:00	Falcon 9 liftoff

03/11/2021 09:59
The next major step in the countdown is the start of fueling of the Falcon 9 with super-chilled, densified RP-1 kerosene and liquid oxygen propellants.
SpaceX's launch conductor will verify all members of the launch team are ready to proceed with the final 35-minute automated countdown sequence at 2:35 a.m. EST (0735 GMT), followed by the start of filling the rocket with super-chilled, densified RP-1 kerosene and liquid oxygen propellants at 2:38 a.m. EST (0738 GMT).
Liquid oxygen loading into the second stage will begin at T-minus 16 minutes, at 2:57 a.m. EST (0757 GMT), followed by final chilldown of the rocket's nine Merlin first stage engines, a final pre-flight engine steering check, switching of the rocket to internal power, and pressurization of the Falcon 9's propellant tanks leading up to liftoff.

03/11/2021 10:14   Stephen Clark
T-minus 60 minutes. Here are some statistics on today's launch:

• 110th launch of a Falcon 9 rocket since 2010
• 118th launch of Falcon rocket family since 2006
• 6th launch of Falcon 9 booster B1058
• 97th Falcon 9 launch from Florida's Space Coast
• 66th Falcon 9 launch from pad 40
• 121st launch overall from pad 40
• 21st launch dedicated to SpaceX's Starlink network
• 7th Falcon 9 launch of 2021
• 7th launch by SpaceX in 2021
• 7th orbital launch based out of Cape Canaveral in 2021

03/11/2021 10:24
T-minus 50 minutes. Heading northeast from Cape Canaveral, the rocket's first stage booster will separate about two-and-a-half minutes into the mission, targeting a landing on SpaceX's drone ship "Just Read the Instructions" around 400 miles (630 kilometers) northeast of the launch site.
The booster is scheduled to land on the floating platform at T+plus 8 minute, 24 seconds, moments before shutdown of the Falcon 9's upper stage engine to complete its first burn on today's mission.
The second stage will reignite its Merlin engine for a brief burn lasting about one second at T+plus 45 minutes, 31 seconds. The upper stage will deploy the 60 flat-panel Starlink satellites at T+plus 1 hour, 4 minutes, 28 seconds, according to a mission timeline released by SpaceX.
The rocket will aim to place the satellites into a near-circular orbit ranging between 161 miles and 174 miles (260 and 281 kilometers in altitude, with an inclination of 53 degrees to the equator.
The quarter-ton satellites, built by SpaceX in Redmond, Washington, are expected to unfurl power-generating solar arrays and prime their krypton ion thrusters to begin raising their orbits to an operational altitude of 341 miles (550 kilometers), where they will join more than 1,100 other Starlink relay stations to beam broadband internet signals across most of the populated world.
With tonight's launch, SpaceX will have deployed 1,265 Starlink satellites into orbit since May 2019, but dozens of those have been de-orbited are are no longer maneuvering, suggesting they have been decommissioned or failed after their launch.

03/11/2021 10:24
SpaceX has dispatched two ships northeast from Cape Canaveral to retrieve the two pieces of the Falcon 9's payload fairing after today's launch. The fairing halves descend under parachutes.

трансляция: https://www.youtube.com/watch?v=Uxe1WsjjJJI (https://www.youtube.com/watch?v=Uxe1WsjjJJI)
и Starlink Mission Control Audio   https://www.youtube.com/watch?v=J_Kdmzypo8o (https://www.youtube.com/watch?v=J_Kdmzypo8o)


https://spaceflightnow.com/2021/03/08/falcon-9-starlink-v10-l20-mission-status-center/ (https://spaceflightnow.com/2021/03/08/falcon-9-starlink-v10-l20-mission-status-center/)

началась заправка
03/11/2021 10:38
T-minus 35 minutes. Filling of the Falcon 9 rocket with super-chilled, densified kerosene and liquid oxygen is underway at Cape Canaveral Space Force Station. This will mark SpaceX's seventh launch of the year, and the 110th flight of a Falcon 9 rocket since June 2010.
The liquid oxygen flowing into the first stage is chilled to near minus 340 degrees Fahrenheit (minus 206 degrees Celsius).
Propellant loading begins with pumping RP-1 kerosene into both stages of the Falcon 9 rocket, and liquid oxygen into the first stage. Liquid oxygen begins loading into the second stage at T-minus 16 minutes.

03/11/2021 10:53
Chilldown of the strongback at pad 40 is underway to prepare for liquid oxygen loading into the Falcon 9's second stage.
03/11/2021 10:55
SpaceX confirms the second stage's RP-1 kerosene fuel tank is fully loaded. The kerosene will be consumed by the second stage's Merlin-Vacuum engine in combination with super-cold liquid oxygen, which will begin flowing into the upper stage shortly.

Spaceflight Now @SpaceflightNow
Propellant loading into the Falcon 9 rocket is continuing at Cape Canaveral.
The countdown is on track for liftoff with 60 Starlink internet satellites at 3:13am EST (0813 GMT).
https://twitter.com/SpaceflightNow/status/1369920937190166528
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03/11/2021 11:07
Hydraulics in the first and second stage Merlin engines are being activated for the Falcon 9's steering system.
03/11/2021 11:08
T-minus 7 minutes. Prevalves leading to the Falcon 9's Merlin 1D first stage engines are opening, permitting super-cold liquid oxygen to flow into the engines to condition the turbopumps for ignition.
03/11/2021 11:08
T-minus 5 minutes. The Falcon 9's propellant tanks are being pressurized in preparation for retraction of the strongback structure at pad 40.
03/11/2021 11:09
T-minus 4 minutes, 15 seconds. The process to lower the strongback structure at pad 40 has begun with the opening up the cradles around the rocket. The strongback will move to an angle of around 1.5 degrees from the Falcon 9 in preparation for ignition, then further retract at liftoff.

Целевая орбита: 287 x 255 км, 53.06°

"активная" половинка ГО - используется второй раз (110 дней не подготовку)
"пассивная" половинка ГО - используется третий раз (88 дней не подготовку)

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T-minus 3 minutes and counting. The rocket's destruct system will be armed shortly, and liquid oxygen topping is being terminated soon.

пуск!

MECO, stage separation

1st stage entry burn complete
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ступень села!!
1st stage landing
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SECO
рестарт через 37 минут = 11:59мск

В трансляции этого пуска использовали или хорошую ИК камеру или тепловизионную камеру.
Видно как нагревается макушка головного обтекателя

На последней картинке "Созвездие Сокола" ;D : 2 ступень, ее медуза, две половинки головного обтекателя и первая ступень.

А новые первые ступени будут производить или те что есть до последнего использовать?
Смотрю осталось только 7 штук - 8, 8, 6, 5, 1, 1, 1 пусков для каждой.

45 дней между пусками ступени В1058

Core	Mission assignment	retry	Last flight	на 14марта
B1049		8x	2021 Mar 4	--
B1051		8x	2021 Jan 20	53
B1058		6x	2021 Mar 11	--
B1060		5x	2021 Feb 4	38
B1061	Crew-2	1x	2020 Nov 16
B1062	GPS 3-5	1x	2020 Nov 05
B1063	DART	1x	2020 Nov 21

B1049		8x R	Telstar18V, Iridium8, SL-0, SL-2, SL-7,SL-10,SL-15, SL-17
B1051		8x R	Demo-1, Radarsat-C, SL-3, SL-6, SL-9, SL-13, SXM-7, SL-16
B1058		6x R	Demo-2, Anasis II, SL-12, CRS-21, Transporter-1, SL-20
B1060		5x R	GPS 3-3, SL-11, SL-14, Turksat5A, SL-18
B1061	Crew-2	1x R	Crew-1
B1062	GPS 3-5	1x R	GPS 3-4
B1063	DART	1x R	Sentinel-6

B1061 уже должна полным ходом готовиться.
а B1062 и B1063 можно что-нить запустить в промежутке до целевых миссий, те же Старлинки

Думаю для ступений по заказам NASA, DOD есть какие-то ограничения. Никто их не даст использовать под Старлинки.

Цитата: Pirat5 от 11.03.2021 11:53:02а B1062 и B1063 можно что-нить запустить в промежутке до целевых миссий, те же Старлинки

Видимо, нельзя - закреплены под конкретные миссии. Иначе, давно бы уже пустили пару раз.

рестарт 2й ступени!
ожидаемое отделение Старлинков = 12:18мск

очередной паровозик полетел
Вы не можете просматривать это вложение.
SpaceX's Falcon 9 rocket just deployed 60 more Starlink internet satellites into orbit at an altitude of 180 miles just south of New Zealand.
With this mission, SpaceX has launched 1,265 Starlink satellites to date, and 310 since the start of the year.

и ещё 2 какие-то фиговины полетели следом:
Вы не можете просматривать это вложение.

Цитата: Pirat5 от 11.03.2021 12:32:17и ещё 2 какие-то фиговины полетели следом:

Нано-спутники с GoPro камерами? чтобы снять, как расцепляется "паравозик"...  ;)  :D

Секундная точность:

ЦитироватьSpaceflight Now  @SpaceflightNow
SpaceX's Falcon 9 rocket arcs northeast from Cape Canaveral after lifting off at 3:13:29am EST (0813:29 GMT) with the latest batch of 60 Starlink internet satellites.

https://www.youtube.com/watch?v=UnwUMgGxQxA

Цитироватьhttps://www.youtube.com/watch?v=UnwUMgGxQxA 2:13
SpaceX Starlink 21 launch & Falcon 9 first stage landing, 11 March 2021
  SciNews (https://www.youtube.com/channel/UCjU6ZwoTQtKWfz1urL7XcbA)
A SpaceX Falcon 9 rocket launched 60 Starlink satellites (Starlink-21) from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station, Florida, on 11 March 2021, at 08:13 UTC (03:13 EST). Following stage separation, Falcon 9's first stage (B1058) landed on the "Just Read the Instructions" droneship, stationed in the Atlantic Ocean. Falcon 9's first stage previously supported five missions: Demo-2, ANASIS-II, CRS-21, Transporter-1 and a Starlink mission.
Credit: SpaceX  

Полная трансляция
https://www.youtube.com/watch?v=U4sWbTfrzj8

Цитироватьhttps://www.youtube.com/watch?v=U4sWbTfrzj8 1:25:00
Starlink Mission
(https://www.youtube.com/channel/UCtI0Hodo5o5dUb67FeUjDeA)  SpaceX (https://www.youtube.com/channel/UCtI0Hodo5o5dUb67FeUjDeA)
SpaceX is targeting Thursday, March 11 for launch of 60 Starlink satellites from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida. The instantaneous window is at 3:13 a.m. EST or 8:13​ UTC.
The Falcon 9 first stage rocket booster supporting this mission previously supported launch of NASA astronauts Bob Behnken and Doug Hurley to the International Space Station, ANASIS-II, CRS-21, Transporter-1, and a Starlink mission. Following stage separation, SpaceX will land Falcon 9's first stage on the "Just Read the Instructions" droneship, which will be located in the Atlantic Ocean. One half of Falcon 9's fairing previously flew on the ANASIS-II and SXM-7 missions, and the other half previously supported launch of Sentinel-6A.

https://vk.com/spacex?w=wall-41152133_311812

ЦитироватьСтатистика запуска миссии Starlink-20
— 3-е и 2-е повторное использование створки обтекателя
— 6-й полёт и посадка ступени Falcon 9 B1058

— 2-я успешная посадка подряд
— 7-й запуск SpaceX этого года (100% на ранее использованных ускорителях)
— 54-я успешная посадка на плавучую платформу
— 60 спутников Starlink выведены на орбиту (310 с начала года)
— 66-й запуск SpaceX с площадки SLC-40
— 76-я успешная посадка 1-й ступени
— 85-й успешный запуск компании подряд
— 110-й пуск Falcon 9
— 118-й запуск SpaceX.

~1203 спутника Starlink v1.0 находятся на орбите
~1265 спутников Starlink выведено на орбиту с начала программы.

https://vk.com/spacex?w=wall-41152133_313061

ЦитироватьВ порт Канаверал возвратилась платформа Just Read the Instructions с Falcon 9 B1058.6
Вы не можете просматривать это вложение.  Вы не можете просматривать это вложение.

https://vk.com/spacex?w=wall-41152133_313151

ЦитироватьКорабль GO Pursuit прибыл в порт Канаверал со створками обтекателя миссии Starlink-20, которые были перегружены на его борт с кораблей Go Searcher и Go Navigator в порту Морхед-Сити.
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SpaceX наконец-то пришел к давно очевидному выводу, что ловля обтекателей сеткой есть глупость, и начал просто вылавливать их из воды? Ура-ура.

Цитата: vlad7308 от 15.03.2021 08:57:01SpaceX наконец-то пришел к давно очевидному выводу, что ловля обтекателей сеткой есть глупость, и начал просто вылавливать их из воды? Ура-ура.

Я с самого начала удивлялся упорству Маска в этой затее, и говорил, что это не только не технологично, но и не красиво! :D

Цитата: cross-track от 15.03.2021 09:03:00

Цитата: vlad7308 от 15.03.2021 08:57:01SpaceX наконец-то пришел к давно очевидному выводу, что ловля обтекателей сеткой есть глупость, и начал просто вылавливать их из воды? Ура-ура.

Я с самого начала удивлялся упорству Маска в этой затее, и говорил, что это не только не технологично, но и не красиво! :D

Всё ещё остаётся открытым вопрос, можно ли так с обтекателями с шумоизоляцией. И мне по-прежнему не понятно, почему их не получается поймать. Они управляют парашютом?

Вопрос с шумоизоляцией закрыт. Половинки после запуска Анасис 2 выловили в море и перезапустили на SXM-7.

Параметров начальной орбиты ещё нет?