Satellites/NAVSTAR 85 (USA 581)

NAVSTAR 85 (USA 581)

Satellite · United StatesActive

NORAD Number

67588

COSPAR ID

2026-017A

Launched

2026-01-28

site code AFETR

Orbit

MEO

Constellation

GPS

Who

Owner / operatorUS Space Force Space Systems Command

ManufacturerLockheed Martin Space Systems (Denver), Astronautics Operations

CountryUnited States

Catalogue owner codeUS

Orbit

OrbitingEarth

Orbit classMEO

Perigee20,125 km

Apogee20,239 km

Inclination55.19°

Period718 min

Radar cross-section—

Latest Orbital Elements

Epoch (UTC)2026-11-09 06:42:47

Mean motion2.00567281 rev/day

Eccentricity0.0021458

Inclination55.1933°

Right ascension of node82.937°

Argument of perigee267.7427°

Mean anomaly91.9854°

B* drag term0.0000e+0

Element set999

Revolutions at epoch43,452

Mean elements (OMM) for the SGP4 model, refreshed every 6 hours. They describe the orbit at the epoch shown and drift as time passes, fastest for low orbits.

Source: CelesTrak satellite catalogue and GP data (celestrak.org); owner and manufacturer from GCAT (J. McDowell, CC BY 4.0).