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  1. indy91

    Apollo 14: RTCC LM S.V. and CSM S.V. Update Procedure

    That is all correct. The target is the vehicle for which the state vector is calculated. So for a CSM state vector to the CMC or LGC you should select Kitty Hawk (the CSM) as the target. The slot where the state vector is being uplinked to is determined by the uplink type (LGC CSM vs. LGC LM)...
  2. indy91

    AGS Lunar Orbit Insertion - Apollo 11

    Ah this is a fun one! Due to an unfortunate series of events involving a bug that got fixed a year ago, this older mission scenario and a change in behavior of the ascent stage, the AGS has a wrong pitch cant angle for the APS loaded. Basically, the APS engine is canted by 1.5° in pitch to...
  3. indy91

    Apollo 9 MCC Bug?

    The latest NASSP release should have a fix for this bug. When you load the scenario from above the SPS-6 calculation will now give a good Maneuver PAD. I solved the problem by adjusting the desired apogee height if the height at TIG is above that. So as I said, in your case the calculation...
  4. indy91

    Apollo 9 MCC Bug?

    Ok the problem is that the SPS-6 maneuver tries to get you into a 95x130 NM orbit, but the maneuver point happens at an altitude of 131.7 NM. That obviously doesn't work. Might be the reduced drag that we have right now that caused you to still be in an orbit with an apogee of above 130 NM. I...
  5. indy91

    Apollo 15 DOI, RTCC MFD question

    Hmm, I think your orbit is shaped incorrectly. The perilune after LOI must be placed quite exact in altitude and location so that DOI can happen at that perilune. Otherwise there will be a large DVZ component of the burn (-257.6 ft/s in your case) and the apolune after DOI is incorrect. This...
  6. indy91

    Apollo 12 - Experiences, Odds & Ends

    In the SPQ the TPI time is usually an input and in the AGC it's always an input. Maybe you are running the SPQ mode to achieve a specific Delta Height? The SPQ has two modes. When you use "Fixed TPI time" then it works like in the AGC. TPI time has to be input and it will iterate on the DH to...
  7. indy91

    Problem with P63 and checklist

    The Descent Engine Command Override switch is only used during powered descent and it is a redundant signal to keep the DPS engine running. What you definitely don't want to happen is that some short power interruption causes the DPS engine to switch off when you are hovering above the surface...
  8. indy91

    Problem with P63 and checklist

    I will do a few checks in that scenario then, state vector etc. RLS is radius of the landing site. The AGS uses the value stored in address 231 as the reference for altitude calculations. The procedure you are doing there is to prepare a manual state vector update on the lunar surface. The...
  9. indy91

    Problem with P63 and checklist

    That scenario is a bit early, that's right after DOI. It's not like I don't want to fly this scenario the hour to PDI, but it's also possible that a procedural error after this scenario is the cause of the issue. So do you maybe have a different scenario where the same issue appears, maybe a few...
  10. indy91

    Apollo 17 LOPC Burn RTCC Planning Question

    Well you gave it a good test for a non-circular case haha. And it's probably ok if you stay in that elliptical orbit until later, even the TEI targeting shouldn't have a problem with that. Have you been doing the tweak burn using the two impulse processor? I feel like that would have given you...
  11. indy91

    Apollo 17 LOPC Burn RTCC Planning Question

    Did you target the circularization burn to get into the 69.9 x 54.2 orbit? This doesn't really work right in Orbiter. The actual lunar gravity perturbations will change this orbit to near circular by the time of LOPC-1. But that can't be simulated in Orbiter yet. So it's probably best to...
  12. indy91

    Linux playground

    Oh yes, that's a bug. I guess I just copied and pasted the GET_Display function, which is just below Angle_Display, and modified it. But I forgot about the "time" variable which somehow didn't give a build error when I didn't change that to "angle". Thanks for finding that!
  13. indy91

    Apollo 17: Lunar Rover Deployment?

    Only the LEVA can deploy the flag and LRV. Only the LEVA vessel can deploy flag and LRV. Right now it's limited to one. I don't think it take a huge amount of updates to allow two though. Nope, doesn't work yet.
  14. indy91

    Apollo 17: Lunar Rover Deployment?

    I mean the actual code of the EVA vessel. I can check your scenario, too, if you want, it could very well be a bug.
  15. indy91

    Apollo 17: Lunar Rover Deployment?

    Yeah it is "V" and I can deploy the LRV in an old Apollo 17 scenario of mine. When looking at the code, the only checks are: "ApolloNo > 14" and then of course "LRVDeployed", a status variable that prevents you from deploying the LRV more than once. And then this last check before the LRV gets...
  16. indy91

    Project Project Mercury

    I've quickly tried MR-3, very impressive. Love the sound effects. I wonder, how does the periscope work using the Orbiter API? Does it just have a different FoV or also a variable view direction which is different from the main window view. I just wonder if you found a solution that can be...
  17. indy91

    Apollo 17 DOI-1 Planning with RTCC?

    In terms of orbital mechanics, if you want to go from a 51x170 orbit to a 13x60 orbit then of course the maneuver is only possible between 51 and 60 NM. If you perform the maneuver at 60NM then you will always null the radial velocity and that is the only way to achieve the 13x60 orbit. But if...
  18. indy91

    Apollo 17: Post-TLI S-IVB Maneuver to SEP ATT Problem

    That screenshot is from before TLI. There is no separate S-IVB vessel at that point. So you need to use the name of the combined Saturn (with CSM), which should be "America". After CSM/LV separation, if you want to uplink anything to the IU, you need to use the name of the separate S-IVB which...
  19. indy91

    Apollo 17: Post-TLI S-IVB Maneuver to SEP ATT Problem

    If you want to find out when exactly the APS lost its propellant, you can check in the scenario editor, under propellant. There are 11 tanks, tanks 10 and 11 contain up to 143 kg, those are the APS tanks. Tank 10 is the empty one, tank 11 is still at 63% in your scenario. This is actually one...
  20. indy91

    Apollo 17: Post-TLI S-IVB Maneuver to SEP ATT Problem

    One APS module seems to have run out of propellant. That's weird, the other tank still has 63% of prop. Maybe this was caused by too much time acceleration, it can move around in the attitude deadband even during 10x. I'm usually monitoring the attitude rate and if it gets too much I go back to...
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