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ERS 1

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ERS 1 is classified as:


NORAD ID: 21574
Int'l Code: 1991-050A
Perigee: 773.7 km
Apogee: 773.7 km
Inclination: 98.4 °
Period: 100.2 minutes
Semi major axis: 7144 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   17020.50023917  .00000079  00000-0  40474-4 0  9990
2 21574  98.4429 330.1461 0033862  37.6311 322.7236 14.37553518336377
Source of the keplerian elements: AFSPC