OPS 6157 (DSP 4)
OPS 6157 (DSP 4) is a satellite operated by United States, currently in a geostationary orbit about 35,897 km above the equator. It completes one orbit of Earth roughly every 1443 minutes at an inclination of 0.9°. It was launched in 1973. Track its live position and see when it passes over your location on azmth.
Orbital data
- NORAD ID
- 6691
- COSPAR ID
- 1973-040A
- Type
- Satellite
- Orbit
- GEO
- Perigee (lowest)
- 35,897 km
- Apogee (highest)
- 35,943 km
- Inclination
- 0.86°
- Orbital period
- 1443 min
- Launch year
- 1973
- Operator
- United States
Orbital data updated: 2026-07-22 · from CelesTrak, refreshed every 2 hours.
About GEO orbit
Geostationary Orbit. Exactly 35,786 km above the equator. Satellites here orbit at the same rate Earth rotates, so they appear stationary in the sky. Used for TV, weather, and communications.
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