USA 4
USA 4 is a military operated by United States, currently in a highly elliptical orbit ranging from 2,706 km to 37,652 km. It completes one orbit of Earth roughly every 718 minutes at an inclination of 63.2°. It was launched in 1984. Track its live position and see when it passes over your location on azmth.
Orbital data
- NORAD ID
- 15226
- COSPAR ID
- 1984-091A
- Type
- Military
- Orbit
- HEO
- Perigee (lowest)
- 2,706 km
- Apogee (highest)
- 37,652 km
- Inclination
- 63.16°
- Orbital period
- 718 min
- Launch year
- 1984
- Operator
- United States
Orbital data updated: 2026-07-20 · from CelesTrak, refreshed every 2 hours.
About HEO orbit
Highly Elliptical Orbit. An elongated orbit that swings close to Earth at perigee and far away at apogee. Includes Molniya and Tundra orbits used for high-latitude coverage.
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