HIPPARCOS
HIPPARCOS is a satellite operated by European Space Agency, currently in a highly elliptical orbit ranging from 499 km to 35,755 km. It completes one orbit of Earth roughly every 636 minutes at an inclination of 7.0°. It was launched in 1989. Track its live position and see when it passes over your location on azmth.
Orbital data
- NORAD ID
- 20169
- COSPAR ID
- 1989-062B
- Type
- Satellite
- Orbit
- HEO
- Perigee (lowest)
- 499 km
- Apogee (highest)
- 35,755 km
- Inclination
- 7.02°
- Orbital period
- 636 min
- Launch year
- 1989
- Operator
- European Space Agency
Orbital data updated: 2026-07-21 · 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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