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ERS 1

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ERS 1 is classified as:


NORAD ID: 21574
Int'l Code: 1991-050A
Perigee: 747.1 km
Apogee: 794.0 km
Inclination: 98.8 °
Period: 100.1 minutes
Semi major axis: 7141 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   24135.96387865  .00001047  00000-0  35568-3 0  9993
2 21574  98.7769 126.9116 0032783  12.3637 347.8346 14.38511469720273
Source of the keplerian elements: AFSPC