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AMSO 1.18 released!
http://www.acsoft.ch/AMSO/amso.html
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Meadville Space Center
Project Apollo - NASSP
Project Apollo - NASSP Development
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LunarTransferMFD
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Topic: LunarTransferMFD (Read 9612 times)
bluespace88
Project Team Member
Full Member
Posts: 241
Re: LunarTransferMFD
«
Reply #45 on:
May 08, 2009, 01:41:08 PM »
Oh, I see. I don't remember IMFD having it either for Orbit-Insert.
And I'll see you next week when I come back.
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jarmonik
Full Member
Posts: 130
Re: LunarTransferMFD
«
Reply #46 on:
May 08, 2009, 03:22:28 PM »
Quote from: Tschachim on May 06, 2009, 06:25:05 PM
Mini-Bug LTMFD LOI program: In Pri = ApAlt, if I set ApA to 0, it displays -1.7381M (altitude / distance mismatch?)
Yes, I forgot to add moon radius to input value. Fixed.
Quote from: Tschachim on May 06, 2009, 06:25:05 PM
Question: Would it be possible that I enter the landing site, too, and the LOI program tries to optimize the landing site alignment, too (as far as possible)?
That's not yet implemented and I am not exactly sure how to do that. There are at least two different ways to align an orbit and I don't know witch one was used with Apollo.
Is there any information about orbital elements of CSM in lunar orbit ?
Most important is the orientation of line of nodes relative to landing site. If that's nearly 90 degrees, the orbit would be aligned with the landing site twice during a mission. (i.e. during deorbit and liftoff)
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jarmonik
Full Member
Posts: 130
Re: LunarTransferMFD
«
Reply #47 on:
May 08, 2009, 03:42:43 PM »
Quote from: Graham2001 on May 08, 2009, 11:23:25 AM
I've just tried out the DG_TEI scenario and got the same result as before, CTD shortly after the MFD is selected. I'm wondering if my older model machine is not powerful enough to handle the calculations
.
Attached is the debugging log from the test run.
Calculations are heavy and that's the reason why user must hit the EXE button to execute a program. It's not making any heavy calculations before that. The attachmet is empty but I don't think it would reveal anything new anyway. How large is the CTD problem, is there anyone else getting a CTD ?
Have you tried it in clean installation of Orbiter with stock delta-glider ?
I just got a though... Let's try dynamic linking and see what happens...
Here:
http://koti.mbnet.fi/jarmonik/LTMFD_DL.zip
«
Last Edit: May 08, 2009, 04:14:51 PM by jarmonik
»
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Tschachim
Project Apollo - NASSP
Administrator
Hero Member
Posts: 3687
nassp.sf.net
Re: LunarTransferMFD
«
Reply #48 on:
May 11, 2009, 06:37:12 AM »
Quote from: jarmonik on May 08, 2009, 03:22:28 PM
Is there any information about orbital elements of CSM in lunar orbit ?
Probably yes, perhaps in the Mission Reports, I need to look around for that...
Cheers
Tschachim
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jarmonik
Full Member
Posts: 130
Re: LunarTransferMFD
«
Reply #49 on:
May 11, 2009, 10:14:56 AM »
Ok, founded the Mission reports from here:
http://history.nasa.gov/alsj/alsj-mrs.html
Orbital parameters are in a format of Time, Lng, Lat, Alt. It's possible to compute more familiar parameters "Inc, LAN, AgP, LPe" from these parameters.
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FordPrefect
Project Team Member
Sr. Member
Posts: 265
Re: LunarTransferMFD
«
Reply #50 on:
May 11, 2009, 10:50:31 AM »
I see you found it, Jarmo! On a sidenote, the values given in the mission reports are exactly the numbers LazyD derived the scenario paramaters for the later AMSO "Lunar Module" scenarios.
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My Project Apollo work in progress:
* New detailed Lunar Module Ascent stage with virtual cockpit (VC currently planned as eye candy only) 18 % done
My Project Apollo work to be continued:
* new Service Module SPS engine bell
* various Saturn V textures, exhaust textures
* SIM Bay for the SM
My long-term plans are to create a:
* New detailed Lunar Module descent stage (eventually models of all flown LM's)
* New F-1 engines for the S-1C stage showing the foil (batting) insulation
* New LUT and launch pad (if nobody else does it)
jarmonik
Full Member
Posts: 130
Re: LunarTransferMFD
«
Reply #51 on:
May 15, 2009, 09:30:18 AM »
The first official version of LTMFD is released as well as IMFD 5.3. Let's hope that everything goes well.
http://koti.mbnet.fi/jarmonik/Orbiter.html
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Coussini
Project Team Member
Hero Member
Posts: 699
Re: LunarTransferMFD
«
Reply #52 on:
May 15, 2009, 10:59:41 PM »
Wonderfull internet site now.... WOW.... that's a great job. Thanks a lot
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Have a nice day
jarmonik
Full Member
Posts: 130
Re: LunarTransferMFD
«
Reply #53 on:
November 02, 2009, 10:42:42 AM »
Hello,
I have released new version 1.1 of LTMFD. Computational efficiency of TLI program is improved and the burn data is automatically recomputed/updated when burn data is requested via IPC interface. How ever, there is a minor limitation that LTMFD can't execute a program when the time to ignition is smaller than 300 seconds. This limit can be reduced if there is a need to.
http://koti.mbnet.fi/jarmonik/Orbiter.html
Regards,
Jarmo
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eddievhfan1984
Full Member
Posts: 231
Re: LunarTransferMFD
«
Reply #54 on:
June 28, 2010, 08:12:18 AM »
Yeah, LTMFD was a godsend. I used it on 8, and it actually calculated the TLI burn so I didn't end up diving through the atmosphere.
However, During my second TLCC, it went all weird. I uploaded the burn data to the AGC via uplink from PAMFD, and got a burn orientation way off of what the MFD indicated. Had to do it via SCS control. I don't know if LTMFD has any issues with being inside the lunar SOI for course corrections, or I had a serious IMU issue. I doubt the latter, since I did alignments, P23, the works. Can anyone help me on that?
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Tschachim
Project Apollo - NASSP
Administrator
Hero Member
Posts: 3687
nassp.sf.net
Re: LunarTransferMFD
«
Reply #55 on:
June 28, 2010, 09:44:17 AM »
Quote from: eddievhfan1984 on June 28, 2010, 08:12:18 AM
...I don't know if LTMFD has any issues with being inside the lunar SOI for course corrections, or I had a serious IMU issue.
I mean to remember there was an issue with different LOI radii (radiuses? sorry for my bad English...), which I think got fixed. What LTMFD version do you use?
Cheers
Tschachim
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eddievhfan1984
Full Member
Posts: 231
Re: LunarTransferMFD
«
Reply #56 on:
June 29, 2010, 04:03:16 AM »
I believe it was the one last released before IMFD 5.4. It was just weird, because I got the burn components from the MFD, transferred them via uplink and P30, but P40 indicated a burn attitude over 30 degrees off from the MFD's burn indicator. I used to have a scenario file, but I upgraded to Win7 x64 and Orbiter 2010 recently so... yeah. Sorry I can't really provide any more details...
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