NAVSTAR 77 (USA 289) — Live Satellite Tracking (NORAD 43873)
Track NAVSTAR 77 (USA 289) (NORAD Catalog Number 43873) live on the WatchSat interactive 3D globe. Its orbital position is propagated in real time from CelesTrak TLE data using the SGP4/SDP4 model. It belongs to the Navigation group.
Orbital elements (from latest TLE)
- Orbit regime: high Earth orbit
- Perigee × apogee altitude: 20087 km × 20292 km
- Inclination: 55.70°
- Orbital period: 718.0 minutes (2.01 revolutions/day)
- Eccentricity: 0.00386
- Element set epoch: 2026-07-16