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Satellite Launches and Retirements
Eutelsat 113WestA fails
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<blockquote data-quote="Analoguesat" data-source="post: 1158404" data-attributes="member: 176362"><p>Graveyard orbit is a generic term for orbits 100miles or more above geostationary. End of life satellites are supposed to use the last dregs of fuel to boost their orbits a few hundred miles. This is so they cant collide with operational satellites.</p><p></p><p>Once in disposal orbit final commands are uplinked onto the satellite to make it safe. The fuel valves are opened to drain the tanks & the batteries are shorted out to make sure they cant explode after accidental short circuits. (Or come back on - which sometimes fails and there are several dozen abandoned satellites of various types that have come back to life after end of service!) The final safeing procedures is called passivating the satellite. Once the satellite is deactivated & de fuelled it can be abandoned to slowly circle the earth for eternity.</p><p></p><p>Please note</p><p>This is a simplistic description of satellite disposal - yes I know its not fully accurate but it gives an idea of what happens.</p></blockquote><p></p>
[QUOTE="Analoguesat, post: 1158404, member: 176362"] Graveyard orbit is a generic term for orbits 100miles or more above geostationary. End of life satellites are supposed to use the last dregs of fuel to boost their orbits a few hundred miles. This is so they cant collide with operational satellites. Once in disposal orbit final commands are uplinked onto the satellite to make it safe. The fuel valves are opened to drain the tanks & the batteries are shorted out to make sure they cant explode after accidental short circuits. (Or come back on - which sometimes fails and there are several dozen abandoned satellites of various types that have come back to life after end of service!) The final safeing procedures is called passivating the satellite. Once the satellite is deactivated & de fuelled it can be abandoned to slowly circle the earth for eternity. Please note This is a simplistic description of satellite disposal - yes I know its not fully accurate but it gives an idea of what happens. [/QUOTE]
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Eutelsat 113WestA fails
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