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ERS 1

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ERS 1 is classified as:


NORAD ID: 21574
Int'l Code: 1991-050A
Perigee: 745.9 km
Apogee: 790.7 km
Inclination: 98.8 °
Period: 100.1 minutes
Semi major axis: 7139 km
RCS: 11.0086 m2 (large)
Launch date: July 17, 1991
Source: European Space Agency (ESA)
Launch site: FRENCH GUIANA (FRGUI)
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NASA's NSSDC Master Catalog

Two Line Element Set (TLE):
1 21574U 91050A   25186.56470496  .00000168  00000-0  68810-4 0  9999
2 21574  98.7914 193.5526 0031382 213.5222 146.3979 14.39208162780183
Source of the keplerian elements: AFSPC