USA 21

retiredheo

NORAD / COSPAR17506 / 1987-015A

ConstellationUNCLASSIFIED

Object typePAYLOAD

Country / ownerUnited States

OperatorVarious

Launch date12 Feb 1987

Launch siteN/A

Launch vehicleN/A

Decay dateIn orbit

Period714.70 min

Inclination62.97°

Apoapsis39367 km

Periapsis836 km

Mean altitude20101 km

Semi-major axis26472 km

Eccentricity0.72756

Latitude—

Longitude—

Altitude—

Velocity—

Footprint area—

TLE epoch2/14/2026, 3:28:01 AM

SourceSpace-Track

1 17506U 87015A   26045.14445650 -.00000778  00000-0 -21159-2 0  9990
2 17506  62.9671 273.1681 7275603 278.0632  12.4511  2.01482512 42766