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info about satellites
Hi everybody,
maybe my questions are OT, but I hope someone can help me. I started intersting about satellites a few time ago, so there are many things I would like to know. I use Orbitron (an excellent program, in my opinion) to know when and where satellites are. But I would like to know info about satellites. Does anyone know where to find them? For example, there are satellites as satcom5, which have a ground track shaped like a eight (8), changing his latitude, but keeping its longitude. Why??? A geostationary satellite must stay "fixed" in the sky (I think...). And how can a satellite have this track? (the same for skynet4 or gstar3). Or there are satellites which oscillate around equator, but "go" along the equator, from east to west, and in some days, make a round trip around the Earth. These are the questions. I tried to search in internet, but there are too infos!!! I don't want answer here (I know I am some OT) but I'd appreciate some links!! Thaks to all -- No SPAZIO to answer Il vantaggio di essere intelligente è che si può sempre fare l'imbecille, mentre il contrario è del tutto impossibile. (W.A.) |
#2
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Latrodectus wrote:
But I would like to know info about satellites. Does anyone know where to find them? You can start with http://www.astronautix.com/ which has background information on almost every satellite that's ever been launched. For example, there are satellites as satcom5, which have a ground track shaped like a eight (8), changing his latitude, but keeping its longitude. Why??? A geostationary satellite must stay "fixed" in the sky (I think...). And how can a satellite have this track? (the same for skynet4 or gstar3). That figure-8 ground track means that the satellite is in an inclined orbit. To hold a fixed position over the equator, a satellite has to be in an orbit which is 24 hours long, circular, and not inclined to the equator. --Bill Thompson |
#4
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Latrodectus wrote in
T: I would like to use a "stand alone" program. try searching for "wxtrack" or "satscape" on google. -- Colin J Denman N 51º 54' 38" W 00º 29' 45" Elev: 125m email: -- use my first name home: http://www.cjdenman.freeserve.co.uk |
#5
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try searching for "wxtrack" or "satscape" on google.
Don't forget about Orbitron (www.stoff.pl) sebastian stoff, www.stoff.pl Torun, Poland (18.6788E, 53.0279N) |
#6
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which have a ground track shaped like a eight (8),
changing his latitude, but keeping its longitude. Why??? Or there are satellites which oscillate around equator http://www.celestrak.com/columns/ See "Basics of the Geostationary Orbit". Also, many more articles there worthy of a good read. cheers --AjK |
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