DMSP 5D-2 F10 (USA 68)

NORAD ID: 20978

Int'l Code: 1990-105A

Perigee: 715.4 km

Apogee: 816.8 km

Inclination: 98.7 °

Period: 100.0 minutes

Semi major axis: 7137 km

RCS: 4.2059 m² (large)

Launch date: December 1, 1990
Source: United States (US)
Launch site: AIR FORCE WESTERN TEST RANGE (AFWTR)

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Two Line Element Set (TLE):

1 20978U 90105A   25199.40214487  .00000196  00000-0  74901-4 0  9998
2 20978  98.6587 251.6277 0071023 199.6625 160.1821 14.39849225814472

Source of the keplerian elements: AFSPC