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Object data
USA 81
Check the current position, flight trajectory and orbital parameters for USA 81 (NORAD 21949). Find out when it will be visible in the sky.
NORAD 21949Bright visual satellitesOrbit
Orbital data
Catalog facts
- Name
- USA 81
- NORAD ID
- 21949
- Category
- Bright visual satellites
- TLE epoch
- Aug 11, 2026, 12:44 UTC
- Object ID
- 1992-023A
- Object type
- Payload
- Owner
- United States
- Launch site
- Air Force Western Test Range, California, USA
- Launch date
- 1992-04-25
- Orbit type
- Orbit
- Orbit center
- Earth
Orbital parameters
Orbit profile
Inclination85.0047°
Eccentricity0.0001
Mean motion14.3241 rev/day
Orbital period100.5 min
Perigee782.9 km
Apogee784.5 km
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