Stopwatch Observations of Satellites, May 1971
1971
30 pages
Report
No indication
English
Optical Detection , Cosmos satellites , Optical tracking , Satellite tracking , Agena d rocket vehicle , Alouette 2 satellite , Anna satellites , Ariel 1 satellite , Astronomical coordinates , Explorer satellites , Isis satellites , Magnitude , Nimbus 3 satellite , Ogo , Pageos satellite , Polyot satellites , Samos , Transit satellites , X-248 engine
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