| | #31 (permalink) | ||||
| Understanding Join Date: Apr 2006
Posts: 307
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | Re: ISO data, and data standards Quote:
Quote:
Quote:
For this sim my intial fuel mass was 1324.7 Kg, of which, 5.2988 kg was used to make the attitude adjustment prior to main ignition, leaving a fuel mass of 13.4012kg. The empty mass of the booster was 147.4 kg and the payload (lander package) massed 500 kg. The booster ran till it exhausted its fuel which took 160.5 sec. thrust vector was prograde to the orbit. The separation of booster and lander package imparted a delta v of 1m/sec to the lander.(This is one of those time sensitive events, if the separtion doesn't happen within 1/2 sec of burn out, the package will miss the moon or will need a mid course correction later. ) Quote:
__________________ "Men are apt to mistake the strength of their feelings for the strength of their argument. The heated mind resents the chill touch & relentless scruntiny of logic"-W.E. Gladstone | ||||
| | |
| | #32 (permalink) | |
| Understanding Join Date: Apr 2006
Posts: 307
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | Re: ISO data, and data standards Quote:
__________________ "Men are apt to mistake the strength of their feelings for the strength of their argument. The heated mind resents the chill touch & relentless scruntiny of logic"-W.E. Gladstone | |
| | |
| | #33 (permalink) |
| Understanding Join Date: Apr 2006
Posts: 307
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | Re: Landing video As promised, here is the landing stage of the mission. I picik the mission up at an altitude of 200 km and then procede with a gravity turn landing. I use a retrorocket package to kill most of the lander's velocity, which sparates away at about 8 km altitude, where the lander's egines take over. I did this because I needed a fairly powerfull engine to kill the velocity, but it was easier to land with smaller engines with finer control. The little jump you see at separation is the veiwpoint shifting focus from the retro stage to the lander. I haven't quite figured out how to eliminate it. The video also ends just a split second before actual touchdown. That's a post-production error that I missed. Landing point is 2°E 1.25°N. On the Eastern edge of Sinus Medii (Central Bay), about 30 km East of Blagg crater. Just about smack dab in the middle of the nearside of the Moon. From the point of ignition of the transfer booster to lunar touchdown the mission takes 4 days, 1hr, 7 sec. Date of launch chosen was Jan 30, 2008.
__________________ "Men are apt to mistake the strength of their feelings for the strength of their argument. The heated mind resents the chill touch & relentless scruntiny of logic"-W.E. Gladstone |
| | |
| | #34 (permalink) |
| Understanding Join Date: Apr 2006
Posts: 307
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | Re: Lunar Mission Sim Here's some screen shots from launch onward. The launch vehicle is based on the Eurocket. From top left clockwise: (1) launch (2) first stage separation (3) second stage separation (4) third stage and fairing separation. ![]()
__________________ "Men are apt to mistake the strength of their feelings for the strength of their argument. The heated mind resents the chill touch & relentless scruntiny of logic"-W.E. Gladstone |
| | |
![]() |
| Bookmarks |
| Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
| Thread Tools | |
| |
Similar Threads | ||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| The Fellowship of Freedom. A Mission on Earth. | arkain101 | Science Projects and Homework | 13 | 03-24-2007 |
| Shuttle Discovery Mission STS-121 | Turtle | Space | 12 | 07-05-2006 |
| ESA, India to cooperate on lunar exploration mission | Tormod | Space News | 0 | 03-21-2005 |
| Mission to Neptune | Stargazer | Space | 17 | 12-14-2004 |
| Commercial Lunar Mission | Noah | Space | 1 | 09-16-2002 |