No public orbit · United States

USA 555

NO PUBLIC ORBIT

GCAT lists it as X-37B OTV-8.

USA 555 (NORAD 65271) is a satellite whose orbit is not public. What is published: its catalogue entry and who operates it.

Orbit

No public orbit

The public catalogue lists no orbit for it, not even its height and tilt (CelesTrak, 14 Oct 2026). azmth draws nothing for it.

Catalogue status: CelesTrak, 14 Oct 2026

Catalogue

Country: United States; From GCAT (14 Oct 2026)
Launched: 22 Aug 2025
COSPAR ID: 2025-183A
NORAD ID: 65271

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

MilitaryUnited StatesActive

Technology test

Official description

“The X-37B is a dynamic and responsive spacecraft responsible for conducting a range of tests and experiments that expedite the development of critical next-generation technologies and operational concepts for reusable space capabilities.”

US Space Force, 22 Aug 2025

Independent assessment

GCAT classes it as a military satellite for technology testing, lists its owner as US Air Force Rapid Capabilities 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.

Why some orbits are not public →

Military satellites, counted and explained →

CelesTrak record