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I saw that. I can't remember why, but for some reason "powerup" meant something else to me, and I thought I had "powered up" the LGC once before, so I went with "0". All I can figure is I wasn't fully caffeinated at the time. On to a new issue... getting ready for SPS-5, running through the P52...

Hello, just completed the docked DPS burn., a few questions... I must have missed something when I set up the DAP? My first attempt didn't go well, and I noticed I had the DAP set to a LM-only 01002 for some reason. So, I had to re-do it with a LM/CSM config. What should the DAP be here...

Ok, I must be a little out of date, I'm on v1951. But leaving the trim at zero for the MTV burn was a great teaching moment, really hammers home the reason for setting the trim. Finished the SPS-4 burn, starting the rest period, I'd like to bother you with a few more questions... The PAMFD...

OK, SPS-3: at 45 sec before shut-down we move the THC CW, using MTVC. Was I supposed to leave the pitch and yaw trim at zero? The first time through when I turned the THC CW, the engine snaps back to zero/zero and the spacecraft yaws/pitches, I wasn't quite ready for that... I re-did it a...

Yeah, I missed that on Apollo12, I think I may have used the PAMFD Checklist in AUTO to expedite the pre-launch stuff, but I didn't notice the difference from the checklist. I was used to looking at the MN A gray/gray/bp, MN B bp/bp/gray config from Apollo 15,16, and 17. When I saw it here, I...

So, this config with FC #2 on both MN A&B is the correct config? I went back and looked at a couple of other flights I've done (Apollo 12 only a few weeks ago) and I had FC #2 on MN A only. That was incorrect?

OK, I think I've got it. After starting P40 I looked at the SXT and the star was in view- just barely, but it was in view. The burn itself seemed ok. FWIW, I just completed SPS-2. Basically the same procedures, but interestingly this time when I did the V49 to the PAD attitude and then the...

You may be on to something here.... No. I did a V49 to the PAD burn attitude, then hit ENTER and then V41N91E and input the PAD shaft/trunion. PAD RPY of 000/356/001 So if I start P40, I'll see a different attitude than the PAD attitude? (I'm guessing 000/000/000?) So if I understand this...

Tried three P30/P40/P52/V41N91 run-throughs, I'm not getting the star check to work. Which tells me my alignment is wrong. Which means I don't know what the bleep I'm doing. Here's a save from 4+52. At this point the PAD is available, but I have not uplinked the target load. From this point...

OK, so we never torque anything with the alignment check, were just eyeballing where the optics are driven when we manually select three different star pairs? That being the case, I'm still not clear on why I can't get the alignment correct. If my alignment doesn't look right after the first...

So If I run through the Alignment Check correctly, it should tweak the P52 opt 1 alignment enough that the SXTS check should look OK?

First off, I appreciate you taking the time to help me work through this... See screenshots. It's near the SCT crosshairs, but not close enough to been seen in the SXT. Another learning opportunity for me.... before the PAD and P30 target load, the DAP is set at 21111, 11111 and the gimbal...

Thinking that doing the star check too late was my problem, I found a save point at 4+57, just before I did the target load uplink, and ran through the whole procedure again. To expedite the process I maneuvered to my expected burn attitude first, hoping to avoid a 405 alarm I've been getting...

That's the only save I have before the burn, I started the V41N91 a while before the save and was trying to figure out my error. I abandoned that scenario because in real time, following the PAMFD checklist for the P52 and following Alignment Check, and eventually the V49 to the burn attitude...

I think this was one of the early attempts, I deleted all the other quicksaves. But this should show you the PAD and what I was looking at at about 5:40 or about twenty minutes before the burn.

The sextant star check, for the P40 orientation. The one that shows up on the PAD for the SPS-1 burn.

OK, cancel the emergency..... after re-doing the P52 opt 1 a few times, it looks like I'm following the procedure correctly. Everything works as advertised, except for the star check, the PAD wants me to check a star that's behind the planet. But the burn goes OK, I just needed to listen to you...

That's what I do. But when I get to the P52 option 1 there's no real change in attitude, just a degree or so maybe, as if the new REFSMMAT is the same as the previous. I'll go back and re-do the simulation from some point well before I get the PAD and uplinks, maybe figure out where I went wrong.

I did the DAP V48, took the gimbal angles (PTRIM, YTRIM) off the PAD. When I run P30 it looks like it loaded everything correctly from the uplink. After the last PRO the flashing V37 shows up, and I enter 40E to start P40. F 50 18 pops up with 190,350,003, which are my current RPYs showing on...

This is my issue, when I do the P52 opt 1 there is no torqueing, the RPYs before and after the "NO ATT" are the same. I'm not changing anything.