GEOS-1

GEOS-1 is a satellite operated by European Space Agency, currently in a highly elliptical orbit ranging from 2,785 km to 38,383 km. It completes one orbit of Earth roughly every 734 minutes at an inclination of 27.5°. It was launched in 1977. Track its live position and see when it passes over your location on azmth.

Orbital data

NORAD ID

9931

COSPAR ID

1977-029A

Type

Satellite

Orbit

HEO

Perigee (lowest)

2,785 km

Apogee (highest)

38,383 km

Inclination

27.51°

Orbital period

734 min

Launch year

1977

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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