Talk:Artificial satellites in retrograde orbit

Contradiction
''Artificial satellites are rarely placed in retrograde orbit. / Most commercial earth observing satellites use retrograde orbit''

These two statements seem contradictory, unless commercial earth observation is rare. Chris857 (talk) 20:29, 8 October 2011 (UTC)

What artificial satellite on retrograde orbit was first?
Maybe this was Samos 2? Mystery train (talk) 07:20, 15 August 2015 (UTC)