Recent content by Thespacer

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    LM VC - Debug String Not Updating During P64

    Thanks for the explanation that it’s working as intended. Not a big deal given competing development priorities. Thanks for everything you’ve done to make NASSP what it is.
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    LM VC - Debug String Not Updating During P64

    Thanks. To be much clearer than I was, I'm referring to the great work @jalexb88 mentioned in his post here from the V8 Release Work Thread:
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    LM VC - Debug String Not Updating During P64

    Hi I've been adapting to the VC, which is looking great. However, the debug string for use when "eyes out" in the final landing phase appears not to refresh at all when the "Mode Sel" switch is in "Ldg Radar" (per checklist). It does refresh, however, when Mode Sel is in PGNS. This may be a...
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    Apollo 12 - Experiences, Odds & Ends

    Aha! Thank you. I looked at the normal A12 procedures, didn’t think to look at the backup.
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    Apollo 12 - Experiences, Odds & Ends

    Hi All. A random Apollo 12 query, regarding TLI monitoring. Seemed like an Odds and Ends type question. From the Tech Crew Debrief, 5.1: “The TLI burn was normal in all respects. My one comment is that we had the little additional program in the CMC to count down to timebase 6 which I thought...
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    AGS Lunar Orbit Insertion - Apollo 11

    Just to provide some closure on this thread… RV was successful, and everything was fairly nominal (e.g., 371 was 58fps, so that had definitely converged well). So while I was not able to get 450 to converge, I had another look at the various procedures out there, and I think the FP6 manual...
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    AGS Lunar Orbit Insertion - Apollo 11

    Thanks! Will look closely again at the references. I wasn’t modifying 450-452, just reading the values so I knew what values to put in N81 for P76. So much at least seemed to me consistent with the procedure in the G&N Dictionary (at page AGS 9). But I confess I am cross-pollinating procedures...
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    AGS Lunar Orbit Insertion - Apollo 11

    Indy, Rcflyinghokie, Thanks again for your assistance. I’ve fallen into the AGS rabbit hole and have nearly completed an AGS-only rendezvous for Apollo 11. The sticking point at the moment is just after the CDH burn, while doing TPI search and execute. Those calculations seems to go fine and...
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    AGS Lunar Orbit Insertion - Apollo 11

    Hi all Just curious if anyone has tried an AGS-guided orbit insertion, using the stock Apollo 11 scenario, just before lunar liftoff (no. 17)? I find it consistently launches into a ~77k foot insertion altitude, despite the target altitude (232) being 60k feet. I’ve followed the AGS procedures...
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    Apollo 12 - Experiences, Odds & Ends

    FWIW I’ve noticed the visibility range of the LM through the CSM sextant during RV is not quite as high as it used to be in previous builds. I used to be able to spot both the yellow box and tracking light at about 110NM in range, but now they appear at about 80-ish. Not a huge drama, as you’ve...
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    Apollo 15 Post Orbital Insertion Procedures Question

    Not sure if applicable to Apollo 15 (or whether there were any hardware changes meaning the switches should vary) but have you tried cross-checking the Apollo 11 Operations Checklist, page F10-20? https://history.nasa.gov/afj/ap11fj/a11-csmocindex.html Also, the Apollo 15 CSM G&C Checklist has...
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    Project of possible interest: external FDAI (python)

    Hi Folks. Stumbled across this non-Orbiter application: external FDAI project. https://github.com/jabadiagm/Bola8 I’m not familiar with python or its interface but this appears to be a very nice graphical depiction of the FDAI. Whether it can be interfaced with other software to make it useful...
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    P23 Questions

    Regarding the LM obscuring the stars, this is at least true to the real thing. From the post-flight debrief: Ground-supplied gimbal angles were used rather than those from the onboard computer. This technique was devised because computer solutions are unconstrained about the optics shaft axis...
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    CSI? CDH? TPI? Help please?

    Max-Q I think most people agree rendezvous is daunting. So perhaps a few general resources to help you get started: I found this old video helpful to describe the process (eg what is CSI, CDH etc): This site also breaks it down well: https://history.nasa.gov/afj/loressay.html A recent...
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    Control Characteristics - CMC vs SCS - Induced Yaw

    Just a small note for closure, got a new joystick and the noise in the yaw axis is no longer an issue. But the experience did help me continue to understand the interesting and nuanced ways in which manual spacecraft control is effected, and the differences between CMC and SCS control modes. I...
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