Satellites/NAVSTAR 70 (USA 251)
NAVSTAR 70 (USA 251)
Satellite · United StatesActive
Who
Owner / operatorUS Air Force Space and Missile Center
ManufacturerBoeing Satellite Development Center, El Segundo
CountryUnited States
Catalogue owner codeUS
Orbit
OrbitingEarth
Orbit classMEO
Perigee20,074 km
Apogee20,293 km
Inclination56.42°
Period718 min
Radar cross-section20.519 m²
Latest Orbital Elements
Epoch (UTC)2026-11-09 01:19:27
Mean motion2.0055072 rev/day
Eccentricity0.0041329
Inclination56.418°
Right ascension of node325.8664°
Argument of perigee324.5771°
Mean anomaly35.1799°
B* drag term0.0000e+0
Element set999
Revolutions at epoch9,144
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).