Approximate orbit · United States
USA 139
USA 139 (NORAD 25336) is a satellite whose full orbit is not public. What is published: its height and tilt, drawn to scale, and who operates it.
Orbit
Approximate orbit, direction and position not public
35,637 to 35,936 km up · tilted 7.3° · 1,436.1 min a lap · as listed on 14 Oct 2026
Its height and tilt are public. The spot above the equator it keeps is not, so azmth shows no position.
Why some orbits are not public →
Height and tilt: CelesTrak and Space-Track.org, as listed on 14 Oct 2026
Catalogue
- Country
- United States
- From GCAT (14 Oct 2026)
- Launched
- 9 May 1998
- COSPAR ID
- 1998-029A
- NORAD ID
- 25336
The United States registered the orbit it was launched into: about 172 to 551 km up, tilted 28.6°, 91.8 min a lap (ST/SG/SER.E/344, 26 Aug 1998). Where it works now is not published. The United States gives its function as “Spacecraft engaged in practical applications and uses of space technology such as weather or communications”.
Who operates it
Independent assessment
GCAT classes it as a military satellite for signals intelligence, lists its owner as National Reconnaissance Office and records it as active (14 Oct 2026).
Data: GCAT · CC BY 4.0 Class, mission and status adapted from GCAT by Jonathan McDowell, CC BY 4.0, data update 14 Oct 2026.
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