Author Topic: SpaceX FH : USSF-52 (X-37B OTV-7) : KSC LC-39A : 28/29 December 2023 01:07 UTC  (Read 210206 times)

Offline Ken the Bin

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NGA notices canceled TBD.

Quote from: NGA
132125Z DEC 23
NAVAREA IV 1442/23(GEN).
WESTERN NORTH ATLANTIC.
FLORIDA.
CANCEL NAVAREA IV 1420/23 AND THIS MSG,
OPERATIONS CANCELED.
Quote from: NGA
132125Z DEC 23
NAVAREA XII 867/23(16,17,19).
EASTERN NORTH PACIFIC.
CANCEL NAVAREA XII 854/23 AND THIS MSG,
OPERATIONS CANCELED.

Offline Ken the Bin

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https://arstechnica.com/space/2023/12/technical-problems-ground-spacex-launch-of-us-military-spaceplane/

Quote from: Stephen Clark
This is expected to push back the launch until at least late December, perhaps longer. SpaceX and Space Force officials have not divulged details about the problems causing the delay.

Offline GewoonLukas_

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https://arstechnica.com/space/2023/12/technical-problems-ground-spacex-launch-of-us-military-spaceplane/

Quote from: Stephen Clark
This is expected to push back the launch until at least late December, perhaps longer. SpaceX and Space Force officials have not divulged details about the problems causing the delay.

Also, from the same article:

Quote
SpaceX called off a launch attempt Monday night at NASA's Kennedy Space Center in Florida to resolve a problem with a ground system. A senior Space Force official told Ars on Wednesday that additional issues will cause an additional delay in the launch.

“We’re working through a couple of technical glitches with our SpaceX team that just are going to take a little bit more time to work through," said Col. James Horne, deputy director of the Space Force's Assured Access to Space directorate. "We haven’t nailed down a specific launch date yet, but we’re going to have to roll back into the HIF (Horizontal Integration Facility) and work through some things on the rocket.”

Horne, a senior leader on the Space Force team overseeing military launches like this one, said the ground equipment problem that prevented liftoff Monday night could be fixed as soon as Wednesday. But it will take longer to resolve other issues he declined to specify. "We found some things that we need to run some analysis on, so that’s what’s driving the delay," he said.
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Offline Jim

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Does this mean that the problem was vehicle/spacecraft related?

Or just that after a delay the spacecraft needs additional servicing?

With DOD flights I just always assume it's the payload.

Seen too many that are on the pad ready to go then something comes up and it's month till it's back on the pad.

Until the encapsulated assembly comes off rocket, I wouldn't say that.

Offline GewoonLukas_

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Falcon Heavy is returning to the HIF:
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Online FutureSpaceTourist

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https://twitter.com/stephenclark1/status/1735311228837249243

Quote
It looks like Falcon Heavy’s launch of the military’s X-37B spaceplane could slip a few weeks to resolve a few technical glitches.

We’ll know soon [if] this will affect schedules for the IM-1 lunar mission or Axiom’s Ax-3 astronaut mission.

https://arstechnica.com/space/2023/12/technical-problems-ground-spacex-launch-of-us-military-spaceplane/
« Last Edit: 12/14/2023 02:04 pm by FutureSpaceTourist »

Offline mn

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https://arstechnica.com/space/2023/12/technical-problems-ground-spacex-launch-of-us-military-spaceplane/

Quote from: Stephen Clark
This is expected to push back the launch until at least late December, perhaps longer. SpaceX and Space Force officials have not divulged details about the problems causing the delay.

Also, from the same article:

Quote
SpaceX called off a launch attempt Monday night at NASA's Kennedy Space Center in Florida to resolve a problem with a ground system. A senior Space Force official told Ars on Wednesday that additional issues will cause an additional delay in the launch.

“We’re working through a couple of technical glitches with our SpaceX team that just are going to take a little bit more time to work through," said Col. James Horne, deputy director of the Space Force's Assured Access to Space directorate. "We haven’t nailed down a specific launch date yet, but we’re going to have to roll back into the HIF (Horizontal Integration Facility) and work through some things on the rocket.”

Horne, a senior leader on the Space Force team overseeing military launches like this one, said the ground equipment problem that prevented liftoff Monday night could be fixed as soon as Wednesday. But it will take longer to resolve other issues he declined to specify. "We found some things that we need to run some analysis on, so that’s what’s driving the delay," he said.

Just wanted to highlight one piece from this James Horne quote in case anyone missed it in reading quickly:

Quote
...and work through some things on the rocket...

Now for some speculation: They observed some things on the 'WDR' (aka launch attempt) that the US Space Force wants to review, but possibly things that SpaceX sees regularly on Starlink launches and goes ahead anyway. (But nothing wrong with being extra careful, this payload is quite valuable)
« Last Edit: 12/14/2023 03:01 pm by mn »

Offline Jim

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Now for some speculation: They observed some things on the 'WDR' (aka launch attempt) that the US Space Force wants to review, but possibly things that SpaceX sees regularly on Starlink launches and goes ahead anyway. (But nothing wrong with being extra careful, this payload is quite valuable)

Nah,

A.  Those type things can be resolved in a day
b.  There is nothing like that
c.  It isn't that valuable.

Offline alugobi

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So what's the problem?

Online ZachS09

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So what's the problem?

It’s over on L2, which I can’t bring up in the public side.
Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!

Online Galactic Penguin SST

https://twitter.com/SpaceX/status/1735837375744651476

Quote
Now targeting no earlier than Thursday, December 28 for Falcon Heavy to launch USSF-52 to orbit from Florida → http://spacex.com/launches

Also from the mission page https://www.spacex.com/launches/mission/?missionId=ussf-52 :

Quote
SpaceX is targeting no earlier than Thursday, December 28 for Falcon Heavy to launch USSF-52 to orbit from Launch Complex 39A (LC-39A) at NASA’s Kennedy Space Center in Florida. The four-hour launch window opens at 7:00 p.m. ET. If needed, a backup opportunity is available on Friday, December 29 during the same window.

= December 29, 00:00 - 04:00 UTC.
« Last Edit: 12/16/2023 02:21 am by zubenelgenubi »
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Online Steven Pietrobon

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PDF of updated press kit. The link to the Twitter livestream has been deleted.
« Last Edit: 12/16/2023 02:05 am by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Online FutureSpaceTourist

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https://twitter.com/alexphysics13/status/1736084639532409083

Quote
The Falcon Heavy Transporter-Erector is rolling out at Launch Complex 39A with no rocket onboard which indicates the rocket for USSF-52 has been taken out of the transporter and being worked on right now. Launch is now no earlier than Dec 28.

nsf.live/spacecoast

Offline mmp121

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While working in the area heard that an engine on one of the cores of the FH needs replaced.  Sounds rather far fetched to me.

Offline Jim

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While working in the area heard that an engine on one of the cores of the FH needs replaced.  Sounds rather far fetched to me.

Not really

Online FutureSpaceTourist

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https://twitter.com/spaceflightnow/status/1737930095468085483

Quote
At pad 39A, the transporter-erector has moved off the launch pad as SpaceX gets ready for the delayed launch of a Falcon Heavy rocket with the U.S. military's X-37B mini-shuttle, currently scheduled for Dec. 28. Watch live views: youtube.com/live/mNRP1y_Ip…

The TE entered the hanger at 39A just before 11am EST this morning.

Offline TJL

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Will an FRF be required prior to the next launch attempt?

Online ZachS09

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Will an FRF be required prior to the next launch attempt?

Because there was an engine replacement, it's highly likely a static fire would need to be conducted before the next launch attempt.
Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!

Offline GewoonLukas_

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Will an FRF be required prior to the next launch attempt?

Because there was an engine replacement, it's highly likely a static fire would need to be conducted before the next launch attempt.

As a reference, during the ViaSat-3 Americas launch campaign they also needed to replace an engine, and did not perform an additional static fire.
Lukas C. H. • Hobbyist Mission Patch Artist 🎨 • May the force be with you my friend, Ad Astra Per Aspera ✨️

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