Approximate orbit · United States
USA 554
USA 554 (NORAD 65161) 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
36,124 to 36,182 km up · tilted 3.6° · 1,454.9 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
- 13 Aug 2025
- COSPAR ID
- 2025-173B
- NORAD ID
- 65161
The United States has registered it with the UN in ST/SG/SER.E/1314, which is not published yet (UN register, checked 30 Sep 2026).
Who operates it
Official description
“The USSF is leveraging the newly certified Vulcan Centaur rocket to deliver demonstrations and experiments to geosynchronous orbit on behalf of the Department of Defense customers.”
Independent assessment
GCAT classes it as a military satellite for technology testing, lists its owner as United States Space Force 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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