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Meadville Space Center
Project Apollo - NASSP
Project Apollo - NASSP Development
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Apollo 7 (vAGC) Flightplan and Procedures
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Topic: Apollo 7 (vAGC) Flightplan and Procedures (Read 11058 times)
Mooncat
Full Member
Posts: 51
Re: Apollo 7 (vAGC) Flightplan and Procedures
«
Reply #15 on:
December 18, 2007, 11:33:51 AM »
Could this be why I'm having trouble with P40 and P41 in Apollo 8 ? It loads but never starts. No error code or DSKY lights either. P40 loads and starts OK in Apollo 7 although I haven't tried to do anything with it yet.
Edit :- I haven't tried to put the new EMEM data in the Apollo 8 scenario yet. I don't really understand what the EMEMS are. I'll search the forum and try to find out
«
Last Edit: December 18, 2007, 11:49:59 AM by Mooncat
»
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Christophe
Project Team Member
Hero Member
Posts: 1072
Re: Apollo 7 (vAGC) Flightplan and Procedures
«
Reply #16 on:
December 18, 2007, 12:25:07 PM »
Quote from: jc121081 on December 17, 2007, 05:51:25 PM
That is very good news!
I am curious, though, if you used the scenario editor to place the SC coelliptic with the SIVB like you had previously for these rendezvous. If not, I'm greatly interrested in hearing how you had accomplished this.
Don't know wether people are interested in but I work on coelliptic phasing maneuvers with my EOCA worksheet.
I'm very busy at work these days so things go slowly but I hope that it could be done next week .
Normally the user should be asked to enter the desired time for RDV, the desired delta height (that can be picked up from mission report or flight plan), the elevation angle for TPI (same source or simply 28° nominally), the time of CSI burn and the number of phasing orbits. Then the calculator will respond in order to give you:
- Phasing burn elements (TIG & delta V's)
- CSI burn elements.
- CDH burn elements.
Additionally I'm working too on sunrise/sunsets orbit ephemeresis in order to choose the RDV time so as it occurs in daylight and with the best target illumination conditions. Something that is very hard to predict with standards orbiter tools.
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jc121081
Guest
Re: Apollo 7 (vAGC) Flightplan and Procedures
«
Reply #17 on:
December 18, 2007, 05:00:50 PM »
Quote from: Christophe on December 18, 2007, 12:25:07 PM
Don't know wether people are interested in but I work on coelliptic phasing maneuvers with my EOCA worksheet.
I'm very busy at work these days so things go slowly but I hope that it could be done next week .
Normally the user should be asked to enter the desired time for RDV, the desired delta height (that can be picked up from mission report or flight plan), the elevation angle for TPI (same source or simply 28° nominally), the time of CSI burn and the number of phasing orbits. Then the calculator will respond in order to give you:
- Phasing burn elements (TIG & delta V's)
- CSI burn elements.
- CDH burn elements.
Hi Christophe!
You know that I'm interrested!
I was meaning to ask you how your progress with EOCA was going. Tout comme avant, je veux l'essayer. Je ne peux pas attendre de voir la nouvelle addition de rendez-vous! Maintenir le bon travail!
Hi irnenginer,
Unfortunately, the EMEM values you gave me disoriented the optics when it tried to locate the moon. However, I was able to pull off a MCC using P40 during TLC, (thanks to the EMEM values you posted, and tschachim for adding the PAMFD/BaseApproach tie) so some good news there, at least.
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jc121081
Guest
Re: Apollo 7 (vAGC) Flightplan and Procedures
«
Reply #18 on:
December 19, 2007, 05:28:02 PM »
Good news...
Last night I completed a successful P23 (cislunar navigation) in Apollo 8. I will include a procedure for those who wish to test below. This covers the star/horizon calibration and marking option for state vector validation. For the star/landmark option, the operation is somewhat similar in respect to P22, with the key differences being that you must calibrate the sextant to a calibration star and then mark a specific landmark once instead of five times. I will include more on this option later. For sake of proper vAGC moon ephemeris data, it would probably be safer to test this in Apollo 7 for now.
Key "F4" to open the menu
Choose "Visual helpers..." in the "Main" window
Check "Planetarium mode" in the "Visual helpers" window
Check "Celestial" in the "Markers" box and press the "Config" button nearby
Highlight "Apollo AGC navigation stars" in the "Configure celestial markers" window
Close all of the menu windows
DSKY V48E
Line 1: 10002 value of 00000 deactivates DAP
Line 2: 01111 quads used in maneuver
PRO
Line 1: xxxxx CSM weight in lbs
Line 2: 00000 LEM weight in lbs
PRO
Line 1: xxx.xx pitch gimbal adjustment angle
Line 2: xxx.xx yaw gimbal adjustment angle
PRO
1 SC CONT - CMC (UP)
DSKY V46E starts DAP
V16 N91E
Line 1: xxx.xx shaft angle in degrees
Line 2: xxx.xx trunnion angle in degrees
122 MODE - ZERO (DOWN)
Wait for angles in AGC to read 00000
MODE - CMC (UP)
Roll to 0 degrees and Yaw to 0 degrees
DSKY V37E 23E
Line 1: 000xx calibration star code
Line 2: xxxxx landmark option: 100 Earth, 200 Moon
Line 3: xxxxx horizon option: 110 near Earth, 120 far Earth, 210 near Moon, 220 far Moon
V25E 000(star code)E 00000E 00110E loads calibration star, near earth horizon option
PRO
Line 1: 00202 auto maneuver preparation code
1 CMC MODE - AUTO (UP)
DSKY PRO COMP ACTY will light for a moment
Line 1: xxx.xx roll angle
Line 2: xxx.xx pitch angle
Line 3: xxx.xx yaw angle
PRO AGC will automatically align CSM within range to align optics with Earth and calibration star specified
Once AGC is finished aligning attitude, "V50 N18" will flash on AGC, then proceed with following steps
ENTR
122 MODE - MANUAL (CENTER)
SCT Use the W,A,S,D keys in the scanning telescope to locate and center calibration star in the telescope
122 SPEED - LO (DOWN)
SXT Center the star in the sextant using the W,A,S,D keys
Key "Q" to mark the star ("E" rejects the mark, key "Q" again to re-mark)
DSKY Line 2: xx.xxx trunnion bias calibration angle in degrees
PRO
122 SPEED - HI (UP)
SCT Use the W,A,S,D keys in the telescope to locate the Earth and center its horizon closest to the calibration star in the telescope
122 SPEED - LO (DOWN)
SXT Center the sextant on the horizon (curve where Earth meets space) using the W,A,S,D keys.
Key "Q" to mark the horizon ("E" rejects the mark, key "Q" again to re-mark)
Line 1: 00016 terminate marking sequence
PRO
V37E 23E
Line 1: 000xx verify calibration star code
Line 2: xxxxx verify landmark option
Line 3: xxxxx verify horizon option
PRO COMP ACTY will light for a moment
Line 1: xxx.xx state vector poistion change in nm
Line 2: xxxx.x state vector velocity change in fps
Value at 00000 (all balls) for both is good
PRO
00E
122 SPEED - HI (UP)
Regards,
jc121081
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Christophe
Project Team Member
Hero Member
Posts: 1072
Re: Apollo 7 (vAGC) Flightplan and Procedures
«
Reply #19 on:
December 20, 2007, 04:54:47 AM »
Thanks Justin!
You looks like a real test pilot! Where did you get that "right stuff"?
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jc121081
Guest
Re: Apollo 7 (vAGC) Flightplan and Procedures
«
Reply #20 on:
December 20, 2007, 04:43:25 PM »
Hah hah, thanks. But I think everyone knows who the
real
pilot here is... *points at Christophe*
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Christophe
Project Team Member
Hero Member
Posts: 1072
Re: Apollo 7 (vAGC) Flightplan and Procedures
«
Reply #21 on:
December 20, 2007, 04:53:46 PM »
Quote from: jc121081 on December 20, 2007, 04:43:25 PM
Hah hah, thanks. But I think everyone knows who the
real
pilot here is... *points at Christophe*
bof! just a bus driver...
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jc121081
Guest
Re: Apollo 7 (vAGC) Flightplan and Procedures
«
Reply #22 on:
December 20, 2007, 10:39:55 PM »
Just committed v1.3 of the Apollo 7 vAGC flightplan. Improvements are as follows:
Added switch settings for panels 351, 352, 375, 377, and 379
Added flightplan listings and procedures for P22 & P23
Added Backup IMU Alignment flightplan listing and procedure for P54
Further improvement of existing procedures
Enjoy,
jc121081
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slydude123
Jr. Member
Posts: 6
Re: Apollo 7 (vAGC) Flightplan and Procedures
«
Reply #23 on:
December 24, 2007, 03:27:10 PM »
The vAGC has been giving me some problems running P23. On P23 it works fine up until the 00202 checklist item. I hit pro, and the comp activity light comes on and stays on and never turns off, and it doesn't load the attitude angles.
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jc121081
Guest
Re: Apollo 7 (vAGC) Flightplan and Procedures
«
Reply #24 on:
December 24, 2007, 10:26:59 PM »
I've had that problem before, but not on the Apollo 7 vAGC scenario. I tested this procedure step-by-step just shortly before I committed it the other day, so unless there was a change committed since then, I'm not positively sure what it may be. Basically, the only other times I could recollect having this problem was after a state vector update was keyed incorrectly (which can happen alot, since there are a lot of octals to key) or the DAP wasn't activated previously. Have you been using the CMC Update spreadsheet for state vector updates or the TelemetryMFD?
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slydude123
Jr. Member
Posts: 6
Re: Apollo 7 (vAGC) Flightplan and Procedures
«
Reply #25 on:
December 24, 2007, 11:27:01 PM »
I tried using it on the vAGC Apollo 8 scenario, but using the Apollo 7 checklist. I did the vector updates using the telemetryMFD. I think I'll try manual input to see if that fixes the problem
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slydude123
Jr. Member
Posts: 6
Re: Apollo 7 (vAGC) Flightplan and Procedures
«
Reply #26 on:
December 25, 2007, 12:37:09 AM »
I tried a manual update and I got the same results. I used the V69 restart and i get a 1202 exec overflow alarm. I'm stumped as to whats causing it. Maybe it's because I'm trying to update during TLC, I have no idea though.
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irnenginer
Project Team Member
Sr. Member
Posts: 271
Re: Apollo 7 (vAGC) Flightplan and Procedures
«
Reply #27 on:
December 25, 2007, 01:49:18 AM »
I think your problem is using the Apollo 8 Scenario. It has issues related to the vAGC load that sends it "off in the weeds" when doing heavy orbital tasks like P23. I am working on it and should have an updated scenario in a day or so, with some other stuff in Apollo7.
Merry Christmas
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jc121081
Guest
Re: Apollo 7 (vAGC) Flightplan and Procedures
«
Reply #28 on:
December 27, 2007, 10:22:40 PM »
Committed v1.4 of the Apollo 7 vAGC Flightplan, with additional switch settings for newly-implemented panels, future switch setting information for new panels that are not yet fully developed, and extended post-landing checklist and crew egress procedure. This will cover the jist of this mission for a while until a few other additions arrive.
My time is going to be focused on testing the vAGC Apollo 8 Scenario and composing the preliminary release copy of its corresponding flightplan and procedures, where I have already composed a good portion of the "basic" flightplan and have the necessary procedures available to be included as well. Thanks to irnenginer, we will now be able to use the vAGC on trajectories outside of Earth orbit, up to and including lunar orbit. I have already made the neccessary procedures from scratch on how to perform SCS (I suppose orbiter style?) maneuvers (using IMFD), and will begin to augment them with new G&N (realistic) procedures utilizing the vAGC. Unlike before, we now have the functionality of the IMFD/PAMFD tie to convert the delta velocities required for these maneuvers (in fps, LVLH) to be stored relatively easily within P30. Expect an update after the next few days.
Regards,
jc121081
«
Last Edit: December 27, 2007, 10:25:02 PM by jc121081
»
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Christophe
Project Team Member
Hero Member
Posts: 1072
Re: Apollo 7 (vAGC) Flightplan and Procedures
«
Reply #29 on:
December 28, 2007, 06:23:05 AM »
Quote from: jc121081 on December 27, 2007, 10:22:40 PM
I have already made the neccessary procedures from scratch on how to perform SCS (I suppose orbiter style?) maneuvers (using IMFD),
hi Justin!
What do you call as
SCS
maneuvers?
Could you elaborate?
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