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ERS 1

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ERS 1 is classified as:


NORAD ID: 21574
Int'l Code: 1991-050A
Perigee: 750.2 km
Apogee: 796.0 km
Inclination: 98.6 °
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   20190.85164894  .00000005  00000-0  16547-4 0  9993
2 21574  98.5986 144.2192 0032060 222.1476 137.7245 14.37748247518172
Source of the keplerian elements: AFSPC