Search results

Just to update this thread as well, we now have the software flown on this mission and it works in my Block I branch: I don't plan to make any further updates for my branch at the moment: https://github.com/indy91/NASSP/blob/BlockI/ There is a lot that could be done in that branch, it's...

The AGC software flown on the AS-202 mission has been recovered. The first flight of any Apollo Guidance Computer! It was recovered by @thewonderidiot using his Block I rope reader, by reading the data out of the actual rope modules that were flown on the mission. Naturally I had to get the...

There is a dedicated MFD page called Splashdown Update (in the RTE section) that you can use to get splashdown coordinates without a maneuver calculation and without having coordinates in the CMC. The Entry PAD page has a button to "downlink" the coordinates to the MFD, but you probably had the...

Now you are using the Return-to-Earth (RTE) targeting. There is a litte bit of an overlap with the TLMCC processor. The latter can be used until shortly before flying by the Moon. The RTE is used from entering the lunar sphere-of-influence until MCC-7. The RTCC MFD manual has a longer section...

NASSP now has support for cue cards in the virtual cockpit: Just click around on any velcro spots in the VC of the CSM main panel and you can activate them that way. Clicking repeatedly will cycle through all the cards that are available for one location or make the card disappear again...

I just tried a TLI with your scenario, this time with P15. I am not getting this program alarm and I have never seen it before. Just to rule out any user error, you are entering the TB6 time from the TLI PAD, right? And then you have to enter the cutoff velocity. So not the DV of the TLI burn...

Oh right, I forgot about that. I haven't checked P15 because I didn't have a TB6 time, but I did get the S-II sep light like normal when I tried it. Just had to go through the TLI prep checklist, in your scenario the EDS power switch was off and the SECS breakers weren't all pushed in. S-II sep...

I can confirm the issue. TLI PAD doesn't calculate in your scenario. I've tracked it down to the RTCC TLI simulation. Specifically at ignition where there is an attitude maneuver of a few degrees. The RTCC even simulates that, or at least the part where the LVDC would limit the attitude rate to...

Your TIG is also a few minutes in the past.

The difference between using the THC in the CCW position and thrusting forward +X like normal is that the first option uses the Direct RCS, while the normal operation of the THC uses Auto RCS. In the control electronics using Direct RCS actually inhibits all other thrusters in that axis, so that...

Hmm, then you might have entered a very bad state vector. 1301 is "Arcsin or arccos input greater than 1". I hope you didn't do the V71 for a wrong address at first and overwrite some important data. Strange programs alarm can also mean some problem with the REFSMMAT. But if the 1301 don't come...

Ah it's a bit of an unfortunate formatting of the PAD. The first line is "304 01 Index 21". When you see 304 you enter the first item, which is 21. That's the total number of lines (in octal) in this update. So you do V71E, 21E, 1501E and so on.

Hmm I was sure I could trick the CMC on Apollo 7 to calculate a Moon vector that P23 could then use. I'll have to try it again, I'll come back to you.

We don't have the correct software for Apollo 7, so there is an issue there. P23 in Colossus 237 does not calculate a vector to the Moon on its own. They fixed this for Apollo 10 I believe (Anomaly report COL-56, "Second body in P23", fixed by PCN-664, "P23 Calculation of Secondary Body to CSM...

The inverter switch is in off, the steerable antenna needs AC power.

I think you are on an outdated version of NASSP. In September I flew Apollo 7 and did a bunch of updates for the MCC and checklist. As part of that I added the landmark tracking PADs and I also fixed the MTVC checks in the checklists. That is all in the most recent NASSP 8 Beta releases...

You should have gotten a landmark tracking PAD with the coordinates to put into P22 at 121:06h GET. You had to write it down or something, because half an hour later it gets overwritten with P27 PAD for a manual state vector update. And there are more of these landmark tracking PADs later in the...

It's the same clickspot on the hatch as opening it. Just randomly click around a bit if you don't know exactly where.

We don't know exactly either. What is likely is that they changed the landing site coordinates in the RTCC to one of the photo sites and then calculated the plane change just like they did with LOPC-1. Descartes is probably a good option. Use the coordinates from flight plan page 1-22, plug them...

Also lack of documentation of RTCC strikes again! I definitely need to add sections about the LLWP and the descent planning to the RTCC manual. At least feature wise they have reached their final form, so there is no excuse to not have it properly documented. Definitely easier and shorter...