Author Topic: Atlas V 551 : USSF-51 : CCSFS SLC-41 : 30 July 2024 (10:45 UTC)  (Read 131316 times)

Offline zubenelgenubi

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Re: Atlas V 551 : USSF-51 : CCSFS SLC-41 : 30 July 2024 (TBD Z)
« Reply #80 on: 04/12/2024 06:58 am »
SLC-41 2024:
One Atlas V MLP
One Vulcan VLP

Boeing CFT      Atlas V N22     May 7 UTC
USSF-51            Atlas V 551     NET June
Kuiper Flight 1  Atlas V 551     H2
Dream Chaser  Vulcan VC4L   Q4

Seeking correction or clarification
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Offline zubenelgenubi

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Re: Atlas V 551 : USSF-51 : CCSFS SLC-41 : 30 July 2024 (TBD Z)
« Reply #81 on: 05/09/2024 11:18 pm »
SLC-41 2024:
One Atlas V MLP
One Vulcan VLP

Boeing CFT      Atlas V N22     NET May 17 UTC
USSF-51            Atlas V 551     NET June
Kuiper Flight 1  Atlas V 551     summer
Dream Chaser  Vulcan VC4L   Q4

Seeking correction or clarification
« Last Edit: 05/13/2024 03:37 pm by zubenelgenubi »
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Offline russianhalo117

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Re: Atlas V 551 : USSF-51 : CCSFS SLC-41 : 30 July 2024 (TBD Z)
« Reply #82 on: 05/09/2024 11:36 pm »
SLC-41 2024:
One Atlas V MLP
One Vulcan VLP

Boeing CFT      Atlas V N22     May 17 UTC
USSF-51            Atlas V 551     NET June
Kuiper Flight 1  Atlas V 551     summer
Dream Chaser  Vulcan VC4L   Q4

Seeking correction or clarification
ULA just announced that its second VLP will begin assembly at the SPOC/ITL yard area very very soon with preparations and staging underway now and should be online before/by the end of this year along with its mission processing facilities. So VLP-2 could see its first use by Q4 at the earliest.

Per ULA Flickr:
They are starting construction on Vulcan offline processing Lane 2: VLP-2 and SPOC mods for VIF-2.
« Last Edit: 05/13/2024 03:41 pm by zubenelgenubi »

Offline zubenelgenubi

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Re: Atlas V 551 : USSF-51 : CCSFS SLC-41 : 30 July 2024 (TBD Z)
« Reply #83 on: 05/19/2024 04:16 pm »
Launch NET late June?

SLC-41 Q2/Q3 2024:
One Atlas V MLP
One Vulcan VLP

Boeing CFT      Atlas V N22     May 25
USSF-51            Atlas V 551     NET June
Kuiper Flight 1  Atlas V 551     summer (Q3?)
Dream Chaser  Vulcan VC4L   September

Seeking correction or clarification
« Last Edit: 05/19/2024 04:42 pm by zubenelgenubi »
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Offline zubenelgenubi

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Re: Atlas V 551 : USSF-51 : CCSFS SLC-41 : 30 July 2024 (TBD Z)
« Reply #84 on: 05/20/2024 04:14 am »
Cross-post:
Quote from: Tory Bruno tweet
Thought you guys might enjoy seeing a flock of Centaur III's.  (building out  Atlas, making room for Vulcans.)
#CrowdedRocketFactory
Interesting replies
<snip>
https://twitter.com/torybruno/status/1791858478895485250
Quote
What Atlas is next up after Starliner? Can you say?
Quote from: Tory Bruno tweet
Not yet.  It'll get announced by the customer.
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Re: Atlas V 551 : USSF-51 : CCSFS SLC-41 : 30 July 2024 (TBD Z)
« Reply #85 on: 05/20/2024 02:43 pm »
Cross-post:
Quote from: Tory Bruno tweet
Thought you guys might enjoy seeing a flock of Centaur III's.  (building out  Atlas, making room for Vulcans.)
#CrowdedRocketFactory
Interesting replies
<snip>
Quote
What Atlas is next up after Starliner? Can you say?
Quote from: Tory Bruno tweet
Not yet.  It'll get announced by the customer.

Tory confirms this will be the next Atlas V launch:

Quote
Space Force?
Quote
Yes

https://twitter.com/torybruno/status/1792564642843414824
Lukas C. H. • May the force be with you my friend, Ad Astra Per Aspera ✨️

Offline zubenelgenubi

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Re: Atlas V 551 : USSF-51 : CCSFS SLC-41 : 30 July 2024 (TBD Z)
« Reply #86 on: 06/06/2024 04:07 am »
Ben Cooper's Launch Photography Viewing Guide; updated June 5 after Starliner CFT launch; my bold:
Quote
The next United Launch Alliance Atlas V rocket will launch a Space Force mission on TBD. The next Vulcan rocket, flying its second mission, is scheduled for later this year.



Launch still NET late June?  Or is it now NET July?

SLC-41 Q2/Q3 2024:
One Atlas V MLP
One Vulcan VLP

Boeing CFT      Atlas V N22     Launched June 5
USSF-51            Atlas V 551     NET June
Kuiper Flight 1  Atlas V 551     summer (Q3?)
Dream Chaser  Vulcan VC4L   September

Seeking correction or clarification
« Last Edit: 06/06/2024 04:16 am by zubenelgenubi »
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Offline zubenelgenubi

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Re: Atlas V 551 : USSF-51 : CCSFS SLC-41 : 30 July 2024 (TBD Z)
« Reply #87 on: 06/20/2024 08:12 am »
Launch still NET late June?  Or is it now NET July?

SFN Launch Schedule, updated June 17:
NET July
« Last Edit: 06/20/2024 08:14 am by zubenelgenubi »
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Offline Galactic Penguin SST

Reference re: Vulcan V-002 launch date:

https://twitter.com/thesheetztweetz/status/1805997291066528085

Quote
Cert-2 is targeting September. ULA has a launch “in between” now and then for an unspecified government customer, with Bruno saying he’s not “allowed to say the month” that government mission is launching.

The only possible choice is USSF-51 given the current manifest, that puts its launch in July or August 2024.
« Last Edit: 06/28/2024 03:21 am by Galactic Penguin SST »
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Re: Atlas V 551 : USSF-51 : CCSFS SLC-41 : 30 July 2024 (TBD Z)
« Reply #89 on: 07/01/2024 07:22 pm »
Quote
The launch of a ULA #AtlasV rocket carrying the #USSF51 mission for the @SpaceForceDoD's @USSF_SSC is scheduled for July 30, 2024 from Space Launch Complex-41 at Cape Canaveral Space Force Station. http://bit.ly/av_ussf51

https://twitter.com/ulalaunch/status/1807856961850892341
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Offline zubenelgenubi

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Re: Atlas V 551 : USSF-51 : CCSFS SLC-41 : 30 July 2024 (TBD Z)
« Reply #90 on: 07/02/2024 12:05 am »
Latin to English
Alise grave nil = Wings are not heavy.

And a horse (pegasus?) in the artwork.



Cross-post; my bold:
Ben Cooper's Launch Photography Viewing Guide; updated July 1:
Quote
The next SpaceX Falcon 9 rocket will launch a Starlink batch from pad 40 on July 3 at 2:01-6:01 a.m EDT. A Falcon 9 will launch the Turksat 6A communication satellite from pad 40 on July 8 around 5-7 p.m. EDT. Upcoming launches include more Starlink batches from pad 40.

The next United Launch Alliance Atlas V rocket will launch the USSF-51 mission for the Space Force on July 30. The next Vulcan rocket, flying for the second time on a demonstration mission, is scheduled for early September.
« Last Edit: 07/02/2024 01:26 am by zubenelgenubi »
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Offline Newton_V

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Re: Atlas V 551 : USSF-51 : CCSFS SLC-41 : 30 July 2024 (TBD Z)
« Reply #91 on: 07/02/2024 01:01 am »
Latin to English
Alise grave nil = Wings are not heavy.

And a horse (pegasus?) in the artwork.
A Mustang perhaps?

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Re: Atlas V 551 : USSF-51 : CCSFS SLC-41 : 30 July 2024 (TBD Z)
« Reply #92 on: 07/03/2024 05:57 pm »
LVOS (Launch Vehicle On Stand) photos from ULA's Flickr:
« Last Edit: 07/03/2024 05:57 pm by GewoonLukas_ »
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Offline FutureSpaceTourist

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Re: Atlas V 551 : USSF-51 : CCSFS SLC-41 : 30 July 2024 (TBD Z)
« Reply #93 on: 07/08/2024 01:46 pm »
https://twitter.com/ulalaunch/status/1810308990598885676

Quote
Launch Vehicle on Stand (LVOS) ✅
Five solid rocket boosters installed ✅
Centaur lifted and secured ✅

The #AtlasV #USSF51 launch is scheduled for July 30 for the @SpaceForceDOD and @USSF_SSC. This will be ULA's 100th mission dedicated to delivering critical U.S. national security assets into space.

Learn more: https://www.ulalaunch.com/missions/next-launch/atlas-v-ussf-51/
« Last Edit: 07/08/2024 01:46 pm by FutureSpaceTourist »

Offline Bean Kenobi

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Re: Atlas V 551 : USSF-51 : CCSFS SLC-41 : 30 July 2024 (TBD Z)
« Reply #94 on: 07/08/2024 07:15 pm »
https://twitter.com/ulalaunch/status/1810308990598885676

Quote
Launch Vehicle on Stand (LVOS) ✅
Five solid rocket boosters installed ✅
Centaur lifted and secured ✅

The #AtlasV #USSF51 launch is scheduled for July 30 for the @SpaceForceDOD and @USSF_SSC. This will be ULA's 100th mission dedicated to delivering critical U.S. national security assets into space.

Learn more: https://www.ulalaunch.com/missions/next-launch/atlas-v-ussf-51/

New version of this post corrects the "Centaur V" error (version flying only on Vulcan, Atlas has Centaur III, abreviated as "Centaur").
« Last Edit: 07/08/2024 07:29 pm by Bean Kenobi »

Offline Steven Pietrobon

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Re: Atlas V 551 : USSF-51 : CCSFS SLC-41 : 30 July 2024 (TBD Z)
« Reply #95 on: 07/09/2024 06:16 am »
PDF of online press kit.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline MarekCyzio

Not sure if this information was already provided, but the launch time on 7/30 is 05:57 local.

Offline zubenelgenubi

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Re: Atlas V 551 : USSF-51 : CCSFS SLC-41 : 30 July 2024 (TBD Z)
« Reply #97 on: 07/19/2024 07:12 pm »
Not sure if this information was already provided, but the launch time on 7/30 is 05:57 local.
This launch time would agree with a typical payload bound for GEO from Cape/Kennedy.
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Offline FutureSpaceTourist

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Re: Atlas V 551 : USSF-51 : CCSFS SLC-41 : 30 July 2024 (TBD Z)
« Reply #98 on: 07/19/2024 08:51 pm »
https://twitter.com/ulalaunch/status/1814402321494741491

Quote
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

Quote
USSF-51: ULA's 100th national security launch
July 19, 2024

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.  

Atlas V served the Air Force, Space Force and National Reconnaissance Office for 17 years with 100 percent launch success, accomplishing missions to low-, medium-, transfer and geosynchronous orbits across the entire performance range of the Atlas V configurations.

ULA continues as a steadfast partner to the Space Force, fulfilling the rigorous, unique requirements needed to launch tremendous capabilities safely and successfully into space for our national defense and the protection of the country’s allies around the world. We have delivered 99 national security missions to orbit successfully since the company was created in 2006, representing 62 percent of our flight history, using Atlas V, Delta II and Delta IV rockets. 

Our launch record played a key part in the successful recapitalization effort to modernize and upgrade the full breadth of U.S. capabilities in space, advancing communications, overhead surveillance and navigation systems that serve the warfighter in harm’s way. 

Space is the new battlefield high ground; a strategic warfighting domain and space launch is a strategic national capability. ULA is unleashing the energy of American ingenuity by developing Vulcan to meet our nation’s need for expanding space missions.  

Vulcan incorporates the best of the legacy Atlas and Delta rockets to create one launch solution that is adaptable, affordable and meets the full spectrum of needs demanded by complex national security satellite deployment missions.

Learn more about the Atlas V USSF-51 launch
See our USSF-51 photo album
« Last Edit: 07/19/2024 08:55 pm by FutureSpaceTourist »

Offline zubenelgenubi

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Re: Atlas V 551 : USSF-51 : CCSFS SLC-41 : 30 July 2024 (TBD Z)
« Reply #99 on: 07/19/2024 09:21 pm »
Payload fairing:
5 meter Short (length) or 5m Medium?
Answer: 5S

https://blog.ulalaunch.com/blog/ussf-51-ulas-100th-national-security-launch
Quote
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.

Answer:
https://www.ulalaunch.com/missions/next-launch/atlas-v-ussf-51
Quote
LAUNCH VEHICLE
Payload Fairing (PLF)
The spacecraft is encapsulated in a 17-ft (5-m) diameter short payload fairing produced in the advanced Out-of-Autoclave manufacturing process. The 5-m PLF is a sandwich composite structure made with a vented aluminum-honeycomb core and graphite-epoxy face sheets. The bisector (two-piece shell) PLF encapsulates both the Centaur and the satellite. The vehicle’s height with the 5-meter short PLF is approximately 196 ft (59.7 m).

(According to Gunter, there has been no use of the 5m Long Payload fairing.)
https://space.skyrocket.de/doc_lau/atlas-5.htm

Edited; thank you for your answer, Newton.
« Last Edit: 07/19/2024 09:45 pm by zubenelgenubi »
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