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ERS 1

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ERS 1 is classified as:


NORAD ID: 21574
Int'l Code: 1991-050A
Perigee: 749.9 km
Apogee: 798.9 km
Inclination: 98.4 °
Period: 100.2 minutes
Semi major axis: 7145 km
RCS: 11.0086 m2 (large)
Launch date: July 17, 1991
Source: European Space Agency (ESA)
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NASA's NSSDC Master Catalog

Two Line Element Set (TLE):
1 21574U 91050A   15244.84306063  .00000200  00000-0  80595-4 0  9993
2 21574  98.3734 194.6107 0034297 110.0470 303.0901 14.37344465263582

Source of the keplerian elements: AFSPC

N2YO: 558