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ERS 1

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ERS 1 is classified as:


NORAD ID: 21574
Int'l Code: 1991-050A
Perigee: 748.5 km
Apogee: 795.5 km
Inclination: 98.7 °
Period: 100.1 minutes
Semi major axis: 7142 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   23082.93152636  .00000548  00000-0  19483-3 0  9999
2 21574  98.7359  60.7313 0032912 167.2512 192.9514 14.38079906660182
Source of the keplerian elements: AFSPC