USA 77

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10-day predictions
USA 77 is classified as:

• Military

NORAD ID: 21809
Int'l Code: 1991-076E
Perigee: 518.5 km
Apogee: 1,703.6 km
Inclination: 63.3 °
Period: 107.3 minutes
Semi major axis: 7482 km
RCS: Unknown
Launch date: November 8, 1991
Source: United States (US)
Launch site: AIR FORCE WESTERN TEST RANGE (AFWTR)

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1 21809U 91076E   18315.72144895 0.00000200  00000-0  51069-4 0    01
2 21809  63.3416 213.2176 0792000  28.2908 331.7092 13.41442415    08

Source of the keplerian elements: McCants