Orbiter 2024 Live Space Shuttle flight

[Geoair2]

Also, you are skipping the NPC burn, which aligns the orbital planes (I saw this in previous missions, and forgot to mention).
Leaving this task for later means longer burns in the final burns of the rendezvous = more errors in the burn = harder to follow the rendezvous profile. There is always a lateral cleanup later on, but it should be very small, compared with the usual NPC burn (thus why its existence).

I do not use the NPC Burn when the difference is very small on this flight it is only 0.3 degrees so I prefer to do it later to save fuel I also realized that when there is so little difference it is more effective by being done late without necessarily being energy consuming

 

[Urwumpe]

I do not use the NPC Burn when the difference is very small on this flight it is only 0.3 degrees so I prefer to do it later to save fuel I also realized that when there is so little difference it is more effective by being done late without necessarily being energy consuming

0.3° RInc still means 40 m/s (133 ft/s) DV. Thats a lot of the available budget and a lot burn time on RCS. Better do such corrections at apogee, while your eccentricity is still maximal.

 

[Donamy]

STS-124 and when would you do it ?

 

[Geoair2]

I think in 2 or 2h30 .

STS-124 suits me, I like installing this big Japanese module and at the same time recovering the OBSS from the previous mission that remained on the ISS

 

[GLS]

Small survey, what mission would you like to see for my next live?
I can offer you STS-97 STS-98 STS-110 STS-113 STS-114 STS-115 STS-124 STS-131

Yes.
In that order.

 

[GLS]

I do not use the NPC Burn when the difference is very small on this flight it is only 0.3 degrees so I prefer to do it later to save fuel I also realized that when there is so little difference it is more effective by being done late without necessarily being energy consuming

But then you'll have to rotate more out of plane, which spends more RCS and will disturb the trajectory more later on.
If it is a small burn, use the RCS.
This was all optimized already, we won't invent anything better.

 

[Geoair2]

 

[Geoair2]

Link updated

 

[GLS]

A few easy improvements:
- About the pitch up during the MPS DUMP, from the Ascent Checklist:

ET PHOTO MANEUVER/MPS DUMP
DAP – INRTL: R (DISC), P (PULSE), Y (DISC),
Orbiter pitches up
Control pitch rate 2º/sec to 3º/sec
* If no pitch rate, go to MPS DUMP complete *
When ET in O/H window (MS call or P ~90º):
P – DISC
Adjust pitch photo att as reqd for MS

So, just 90º and not a full 180º turn.

- The Ku-band antenna and the GPCs don't talk to each other (yet), so don't bother with other switch positions other than "AUTO TRACK". Also, it only does "RDR PASSIVE".

- If your next OMS burn is using the same engines as the previous one, you don't really need to reset the OMS trim angles. There will have the gimbal values from the end of the previous burn, which should be close enough to the actual c.g. direction.

- The OPS 8 checkout is only performed at the end of the mission, and not during the rendezvous.

- You can zoom in the ODS centerline camera, and get a better view of the docking target from far away, to help with the alignment.

- And again, read the section 8 of the FDO MFD manual.

 

[Geoair2]

I have a bug when docking on my STS-124 mission. I will have to understand why before retrying this mission. so I'll do another mission while waiting to find the solution

 

[Geoair2]

- The OPS 8 checkout is only performed at the end of the mission, and not during the rendezvous.

I was able to read in documents that the test was also carried out in the first 24 hours of the mission in case it was necessary to return to earth urgently.

 

[DaveS]

I was able to read in documents that the test was also carried out in the first 24 hours of the mission in case it was necessary to return to earth urgently.

It never actually was, especially on the busy post-Columbia missions.

 

[Geoair2]

New test

 

[gamer19]

this is insane
and I thought DCS was tough

 

[Donamy]

change the EE frame

 

[GLS]

change the EE frame

Yeah, that was not going in the right way...

 

[Tiny_Bob]

if youre willing to continue this, i can help create/debug trajectories