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USA 21

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USA 21 is classified as:


NORAD ID: 17506
Int'l Code: 1987-015A
Perigee: 1,133.9 km
Apogee: 39,258.0 km
Inclination: 62.5 °
Period: 718.2 minutes
Semi major axis: 26566 km
RCS: Unknown
Launch date: February 12, 1987
Source: United States (US)
Launch site: AIR FORCE WESTERN TEST RANGE (AFWTR)
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NASA's NSSDC Master Catalog

Two Line Element Set (TLE):
1 17506U 87015A   22145.80810394 -.00000993  00000-0  00000-0 0  9999
2 17506  62.5189 124.8315 7175082 264.8931  17.3901  2.00488845 20977
Source of the keplerian elements: AFSPC