Apollo 9 - MCC S065 update Day 6

[thermocalc]

Hi to all in the forum,
I arrived to day 6 and 7 of Apollo 9 and I am not sure what I am doing wrong even after reading the real flight plan and related docs, so I posted here.

day 6) S095
when I got the MCC S065 update the 1st time I got this PAD:

so what I did:
V49E to get into the attitude 000.45-294.31-359.96 (1st column PAD), follow the checklist to set up the ORB RATE using the DAP, hitting the "E" of the "70000(E)" at time 123:56:45 (1st column PAD) to start the orbital rate (by checking Orbiter HUD I saw that I was flying LVLH); I was expecting/thinking to reach 0-0-0 attitude (2nd column) at 124:01:45 (2nd column) but I was only at P=315 but still in LVLH, as far as I understood (my interpretation of the PADs) at time 124:01:45 + 5 min = 124:06:45 the camera should have shot 25 exposures with a duration of 6 s each - so i wait for 124:06:45 expecting to reach 0-0-0 attitude at that time, but I was only at P=330 ... so I am confused.
In summary here what I understood should happen reading the PAD:
at 123:56:45 I should be at 000.45-294.31-359.96 to start ORB RATE, I should reach 000.00-000.00-000.00 5 min after, i.e. 124:01:00, at that time I should keep that attitude stopping ORB RATE hitting HOLD, the camera will do 25 photos of 6 s each, at time 124:06:15 and still holding the 0-0-0 attitude the camera should shot others 3 photos of 6 sec each. Am I correct with the interpretation of the PADs?

The second MCC S065 update was different:

as before, I made V49E to reach 000.48-332.61-359.95 and at 125:34:37 I started the ORB RATE (I was LVLH according Orbiter HUD), again I as expecting to reach 0-0-0 5min later at 125:39:37 but I was at P=352 not P=0.
moreover, in the check list it is written to "stop ORB Rate" but when? at which time?

what I am doing wrong?

thanks, Paolo.

 

[indy91]

The second column is not showing any final attitude for the first column, the columns are independent of each other. It is based on the actual PAD:

So you can have up to four passes on the one PAD. But they only filled out the whole PAD once, at 190h GET or so. The 5 minutes means you start the orb rate 5 minutes before taking photos. That's what the GET means. So I guess you can start an event timer at the GET on the PAD (together with starting the orb rate) and when it says 5 minutes you would start taking photos.

The time to stop the orb rate is specified in the flight plan. I don't think the timing or the attitude where you stop the orb rate is critical, as long as you have enough time to set up the next pass.

 

[thermocalc]

thank you Indy, so if I have understood you correctly:
I must be at the ATTITUDE specified at the GET specified, at that GET I start the Orb Rate, after 5 min I should take the photo, stop the orb rate at the end of the exposures (for example if I have to take 25 photos at 6 sec each, it means stop orb rate after 25x6=300 s) and change to the next attitude (if any) by the next GET (if any) and repeat the process...I think it should work like that. If I am still wrong please correct me again
Thanks Paolo

 

[thermocalc]

Hi, I did what I mentioned in my last post and it worked well. I just anted to confirm the procedure for somebody (eventually).
safe virtual flights.