CALSPHERE 4A — Live Satellite Tracking (NORAD 1520)
Track CALSPHERE 4A (NORAD Catalog Number 1520) live on the WatchSat interactive 3D globe. Its orbital position is propagated in real time from CelesTrak TLE data using the SGP4/SDP4 model.
Orbital elements (from latest TLE)
- Orbit regime: low Earth orbit (LEO)
- Perigee × apogee altitude: 1077 km × 1184 km
- Inclination: 89.90°
- Orbital period: 107.8 minutes (13.36 revolutions/day)
- Eccentricity: 0.00712
- Element set epoch: 2026-07-16