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ERS 1

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ERS 1 is classified as:


NORAD ID: 21574
Int'l Code: 1991-050A
Perigee: 750.6 km
Apogee: 796.3 km
Inclination: 98.5 °
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   18050.48396759 +.00000023 +00000-0 +22351-4 0  9991
2 21574 098.4914 359.1036 0031989 297.9871 061.8080 14.37630973393131
Source of the keplerian elements: AFSPC