ERS 1

21574
Spacetrack Directory Number
1991-07-17
Orbit launches
771.92 km
Average height
26890.79 km/h
Average velocity


Satellite information ERS 1 - ERS-1

Spacetrack Directory Name ERS 1
Alternative name ERS-1
Follow ERS 1 ERS 1 Tracker
Pass predictions ERS 1 Pass predictions ERS 1
Orbit launches 1991-07-17 (35 years ago)
Days in orbit 12849
Country/organisation of origin European Space Agency (ESA)
Starting point FRGUI (Guiana Space Centre, French Guiana)
Type Satellite
Categories
Perigee 742 km
Apogee 790 km
Orbit slope (inclination) 98.78°
Laps per day 14
Height ERS 1 771.92 km

Additional information ERS 1

European remote sensing satellite (ERS) was the European Space Agency's first Earth-observing satellite programme using a polar orbit. It consisted of 2 satellites, ERS-1 and ERS-2.

satellite ERS 1 Date of exalting 17.07.1991y. Average height of ISS ERS 1 hundred 771.92 km. Average velocity ERS 1 is 26890.79 km/h. Inclination ERS 1 satellite 98.78°.

TLE



Average orbit height ERS 1

Average velocity ERS 1

Average inclination ERS 1

Mean right ascension of the ascending node (RAAN) ERS 1

Mean argument of perigee ERS 1

Mean semi-major axis of the orbit ERS 1

Mean orbital eccentricity ERS 1

Update time: 2026-09-19 19:50:11
Average height of ISS ERS 1 is: 771.92km
Average velocity ERS 1 is: 26890.79km/h
Average orbit height ERS 1 is: 98.78°
ERS 1 a new group of Starlink satellites has been launched 1991-07-17
ERS 1 is from 12849 days Days in orbit.