User talk:WDGraham/April 2014

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"Deorbited" satellites

From Maurin des maures: ref article:List of USA satellites
reason to mark USA 111, USA 39 and USA 65 as deorbited:
last TLE for USA 111 (from McCants listing)
UFO F5
1 23589U 95027A 14080.56953588 0.00000000 00000-0 00000-0 0 05
2 23589 8.6557 36.5440 0001084 256.1540 103.8460 0.98745968 06

last TLE for USA 39
DSP F14
1 20066U 89046A 14080.50928546 0.00000000 00000-0 00000-0 0 06
2 20066 14.1078 19.8233 0005001 73.8411 286.2260 0.98815298 09

last TLE for USA 65
DSP F15
1 20929U 90095A 14055.48891202 0.00000000 00000-0 00000-0 0 07
2 20929 14.5652 24.0592 0004742 19.5861 340.4442 0.98395640 01
Maurin des maures (talk) 19:19, 21 April 2014 (UTC)

I think you may be getting your terminology confused. Those elsets show satellites which have clearly not been deorbited - once a satellite is deorbited you won't get any more elsets as, by definition, it is no longer in orbit. Instead I would suggest that these satellites have simply been decommissioned and moved away from their operational orbit. This is not the same as deorbiting a satellite, which is the act of removing it from orbit altogether (not just from its operational orbit) - usually by causing it to reenter the Earth's atmosphere, which is not practical with geosynchronous satellites. --W. D. Graham 21:16, 21 April 2014 (UTC)
By "deorbited" I meant "sent to the graveyard orbit" (altitude > 36100 km)

These 3 satellites are all above 36200km
UFO F5: mean altitude: 36220 km
DSP F14: mean altitude: 36200 km
DSP F15: mean altitude: 36320 km
Maurin des maures (talk) 07:05, 22 April 2014 (UTC)

"Deorbited" is not the correct word to describe that. --W. D. Graham 18:00, 22 April 2014 (UTC)

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SpaceX rocket engine family

There is an article MOVE proposal over on Talk:SpaceX rocket engine family. You've had good input on article naming consistency etc. in the past; thought you might want to take a look. (I haven't decided yet, and actually want to hear more views on it.) N2e (talk) 19:24, 28 April 2014 (UTC)