bush_cheney2004 Posted April 22, 2009 Report Share Posted April 22, 2009 Latest photos from the joint ESA-NASA Cassini (Equinox) mission to Saturn: http://www.dailymail.co.uk/sciencetech/art...lanet-life.html http://saturn.jpl.nasa.gov/photos/ Quote Link to comment Share on other sites More sharing options...
DogOnPorch Posted April 22, 2009 Report Share Posted April 22, 2009 Cassini has been one of the most successful missions ever. You can reproduce the entire thing using Orbiter. We used the latest images from Cassini (at the time) to reproduce Saturn and its rings/moons. Quote Link to comment Share on other sites More sharing options...
bush_cheney2004 Posted April 22, 2009 Author Report Share Posted April 22, 2009 Cassini has been one of the most successful missions ever. You can reproduce the entire thing using Orbiter. We used the latest images from Cassini (at the time) to reproduce Saturn and its rings/moons. Can Orbiter simulate the Equinox mission mods for each satellite? Quote Link to comment Share on other sites More sharing options...
DogOnPorch Posted April 22, 2009 Report Share Posted April 22, 2009 HORIZONS is used for moon positions so their positions are fairly accurate. When further accuracy was needed, modules were written using whatever better data was present. Janus and Epimetheus were two in particular the gang had trouble with, though. Quote Link to comment Share on other sites More sharing options...
bush_cheney2004 Posted April 22, 2009 Author Report Share Posted April 22, 2009 HORIZONS is used for moon positions so their positions are fairly accurate. When further accuracy was needed, modules were written using whatever better data was present. Janus and Epimetheus were two in particular the gang had trouble with, though. The Equinox mission extension requires some interesting orbital mechanics to achieve these objectives: http://sci.esa.int/science-e/www/object/in...fobjectid=43181 They have pressed the backup "B" hydrazine thrusters into service after sitting idle for 11 years! Quote Link to comment Share on other sites More sharing options...
DogOnPorch Posted April 22, 2009 Report Share Posted April 22, 2009 Indeed many of those encounters could be reproduced. The longer the simulator ran (or if you used high levels of time compression) you would get less accuracy. Fresh HORIZON data for smaller moons would also be good idea for the best results. The original idea for Orbiter was for pure enjoyment. But since then there has been a push for higher levels of accuracy in hopes of it being a staple amoung space agencies for mission demos. There are still no plans by the original creator to sell it. He's plenty busy already (computed tomography). Quote Link to comment Share on other sites More sharing options...
DogOnPorch Posted April 22, 2009 Report Share Posted April 22, 2009 Here's an older pdf describing Orbiter's mechanics more. http://download.orbit.m6.net/news/orbiter.pdf Quote Link to comment Share on other sites More sharing options...
bush_cheney2004 Posted April 22, 2009 Author Report Share Posted April 22, 2009 Here's an older pdf describing Orbiter's mechanics more.http://download.orbit.m6.net/news/orbiter.pdf Thanks...I will check it out. A friend of mine who was in the Reserves use to kill time at CENTCOM by figuring out L-points (three body system). I haven't re-visited these kind of sims since PC power has improved significantly from the days of a separate math coprocessor! Quote Link to comment Share on other sites More sharing options...
DogOnPorch Posted April 22, 2009 Report Share Posted April 22, 2009 Thanks...I will check it out. A friend of mine who was in the Reserves use to kill time at CENTCOM by figuring out L-points (three body system). I haven't re-visited these kind of sims since PC power has improved significantly from the days of a separate math coprocessor! Sounds like about 85% of the posters over at Orbiter Forum. Here's a film a buddy made on Apollo in Orbiter. Quote Link to comment Share on other sites More sharing options...
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