USSF-51 (USA 396, USA 397, USA 398) – Atlas V 551 – Canaveral SLC-41 – 30.07.2024 10:45 UTC

[zandr]

https://nextspaceflight.com/launches/details/5055

USSF-51
Launch Time
NET Jul 30, 2024
Launch vehicle was switched from Vulcan Centaur to Atlas V at ULA's request.

Rocket  Atlas V 551
...
Mission Details
USSF-51
USSF-51 is a classified mission for the United States Space Force.

Location
SLC-41, Cape Canaveral SFS, Florida, USA

[zandr]

https://x.com/ulalaunch/status/1814402321494741491

ULA  @ulalaunch
United Launch Alliance is making final preparations for its 100th launch in service to U.S. national security. An #AtlasV 551 rocket will launch #USSF51 for
@SpaceForceDOD and @USSF_SSC on July 30 from Cape Canaveral, FL.

Learn more in our blog: https://blog.ulalaunch.com/blog/ussf-51-ulas-100th-national-security-launch
   

[zandr]

По ссылке

The milestone 100th launch in service to U.S. national security by United Launch Alliance (ULA) is in the final stages of preparations for ascent into space on July 30 from Cape Canaveral Space Force Station (CCSFS) in Florida. 

ULA will use an Atlas V 551 rocket to launch the classified USSF-51 mission for the United States Space Force's Space Systems Command (SSC).  

Stacking of the 196-foot-tall (60-meter) rocket began June 25 when the first stage was trucked from ULA's Horizontal Integration Facility (HIF) to the Vertical Integration Facility-G (VIF-G) adjacent to Space Launch Complex (SLC)-41 for hoisting aboard the Mobile Launch Platform. 

Powered by refined kerosene propellant, the stage's main engine will generate 860,200 pounds (3.83 mega-Newtons) of thrust to propel the Atlas V out of the atmosphere during the initial minutes of flight. 

The following days were spent installing five GEM 63 solid rocket boosters (SRBs) on the sides of Atlas V. The 66-foot-long (20-m) boosters will be ignited at liftoff to augment the first stage and provide two-thirds of the power at launch, each delivering 371,550 pounds (1.6 mega-Newtons) of thrust for approximately 90 seconds. 

The Centaur upper stage was lifted into the VIF and connected to the first stage on July 2. The cryogenic stage's single RL10C-1-1 engine—a new and higher performing variant of the venerable engine family—burns liquid hydrogen and liquid oxygen to produce 23,825 pounds (106 kilo-Newtons) of thrust. 

The USSF-51 payload arrived at the VIF on July 17 and was lifted atop the rocket to complete assembly of the launch vehicle.  It is encapsulated in a 17.7-foot-diameter (5.4 m) composite payload fairing measuring 68 feet (20.7 m) in height. 

This Atlas V rocket, designated AV-101, will weigh 1.29 million pounds (587,000 kg) once fully fueled for liftoff. It leaves the pad on 2.7 million pounds (12 megaNewtons) of thrust. 

The Atlas V 551 is the highest performance configuration of the rocket family with a full complement of five solid rocket boosters. It first flew in 2006 and has launched the New Horizons spacecraft to Pluto, the Juno orbiter to Jupiter and multiple national security payloads. 

The USSF-51 mission marks the conclusion of national security launches using the Atlas V fleet as ULA transitions to the next generation, highly flexible Vulcan rocket for continued access to space...

Последний пуск  Atlas V.  

[Pirat5]

последний для военных?

Миссия USSF-51 знаменует собой завершение запусков национальной безопасности с использованием парка Atlas V

[Pirat5]

вобщем, ещё должны быть:
1 для коммерческой миссии ViaSat 3.2
9 для KuiperSat.
6 для Starliner.
(может кто поправит меня...)

[Demir_Binici]

вобщем, ещё должны быть:
1 для коммерческой миссии ViaSat 3.2
9 для KuiperSat.
6 для Starliner.
(может кто поправит меня...)

8 для Kuiper. 1 из 9 в прошлом году состоялся.

Последний пуск  Atlas V...

... по программе NSSL.

[zandr]

https://nextspaceflight.com/launches/details/5055

USSF-51
Launch Time
Tue Jul 30, 2024 13:45 GMT+3

[hexec55156]

https://nextspaceflight.com/launches/details/5055

USSF-51
Launch Time
NET Jul 30, 2024
Launch vehicle was switched from Vulcan Centaur to Atlas V at ULA's request.

Rocket  Atlas V 551
...
Mission Details
USSF-51time card calculator
USSF-51 is a classified mission for the United States Space Force.

Location
SLC-41, Cape Canaveral SFS, Florida, USA

Переход на Atlas V 551 вместо Vulcan Centaur явно подчеркивает важность миссии USSF-51 для США. Интересно, что они готовят для нас в этот раз

[Demir_Binici]

Переход на Atlas V 551 вместо Vulcan Centaur явно подчеркивает важность миссии USSF-51 для США.

Ничего подобного он не подчёркивает. В августе 2020 года эта миссия была запланирована на Q2 2022, а миссия USSF-106 на Q4, исходя из того, что первый запуск Vulcan состоится в 2021 году и к 2022 году ракета будет сертифицирована для NSSL. В мае 2021 году ULA отправили запрос в U.S. Space Force, с просьбой разрешить им запуск USSF-51 на Atlas V, так как сертификация Vulcan задержится. Только и всего - никакой конспирологии. USSF-106 уже полетит на Vulcan.

[zandr]

Код Выделить Развернуть

https://www.youtube.com/watch?v=TUjJh-iavNY

 1:14
Atlas V USSF-51 Mission Profile
  United Launch Alliance
A United Launch Alliance (ULA) Atlas V rocket will launch the USSF-51 mission for the United States Space Force's Space Systems Command (SSC). Liftoff will occur from Space Launch Complex-41 at Cape Canaveral Space Force Station, Florida.

[zandr]

https://x.com/ulalaunch/status/1816837741792874836

ULA  @ulalaunch  ·  Jul 26
The ULA Launch Readiness Review is GO to continue preps for Tuesday's launch of #AtlasV with the #USSF51 mission for @SpaceForceDOD. The sunrise launch time is 6:45amEDT (1045 UTC). Early weather forecast is 80% favorable.

Live updates and webcast: http://bit.ly/av_ussf51

[zandr]

https://x.com/ulalaunch/status/1817232117668946313

ULA  @ulalaunch
Rollout from the Vertical Integration Facility-G to Space Launch Complex-41 is underway. The 100th ULA launch in service to U.S. national security will use an #AtlasV 551 to deliver the #USSF51 mission into space. http://bit.ly/av_ussf51
<короткое видео>

[zandr]

https://x.com/ulalaunch/status/1817239080653979837

ULA  @ulalaunch
This #AtlasV 551 rocket, designated AV-101, stands 196 feet (60m) tall and will weigh 1.29 million pounds (587,000kg) once fully fueled for liftoff. It leaves the pad on 2.7 million pounds (12 megaNewtons) of thrust from the main engine and five SRBs to launch #USSF51.
<короткое видео с вывоза>

[zandr]

https://x.com/ulalaunch/status/1817244566581297621

ULA  @ulalaunch
Mighty #AtlasV // #USSF51

On Tuesday, ULA will offer live play-by-play reports from launch control in our automatically refreshing blog beginning at 3:30amEDT (0730 UTC). The launch webcast starts at 6:25amEDT (1025 UTC). You can find both on our website: http://bit.ly/av_ussf51
<короткое видео с вывоза>

[zandr]

https://x.com/ulalaunch/status/1817248299268640984

ULA  @ulalaunch
Our #AtlasV 551 rocket, affectionately called "The Bruiser" by @torybruno, is on the pad to launch #USSF51 at sunrise on Tuesday. ULA is launching this classified national security ission for @SpaceForceDOD and @USSF_SSC. http://bit.ly/av_ussf51
<короткое видео с вывоза>

[zandr]

https://x.com/ulalaunch/status/1817317616437879214

ULA  @ulalaunch
#AtlasV's first stage has been filled with room-temperature RP-1 propellant that will feed the main engine during the initial phase of the #USSF51 launch. Loading of cryogenic liquid hydrogen and liquid oxygen occurs in the final hours of the launch countdown Tuesday morning.
<короткое видео с СК>

Первая ступень горючим заправлена.

[zandr]

Код Выделить Развернуть

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

July 30 LIVE Broadcast: Atlas V USSF-51
  United Launch Alliance
A United Launch Alliance (ULA) Atlas V rocket will launch the USSF-51 mission for the United States Space Force's Space Systems Command (SSC). Liftoff will occur from Space Launch Complex-41 at Cape Canaveral Space Force Station, Florida. 
Launch Date: July 30, 2024 at 6:45 a.m. ET (1045 UTC)
Go Atlas! Go Centaur! Go USSF-51!
Live Blog: bit.ly/av_ussf51

[полтора_землекопа]

Что летит-то? Второй "Сайлентбаркер", аналог прошлогоднего? Обтекатель такой же, короткий (68 футов). Не похоже, Silentbarker - это NROL, а здесь USSF.

CBAS-3 с попутчиками? Это более вероятно.

[zandr]

Намёк?
https://x.com/NatReconOfc/status/1817581594531500128

NRO  @NatReconOfc
#OTD in 2016, NROL-61 launched with Spike on board! Take a look at his adventure on a @ulalaunch Atlas V rocket.

старые патчи

 

[свернуть]

[zandr]

ULA  @ulalaunch
Check out our #USSF51 Flickr album for more photos of the #AtlasV rocket during rollout to SLC-41 yesterday!
 https://bit.ly/3A4UtmI