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LANDSAT 7 is classified as:

NORAD ID: 25682
Int'l Code: 1999-020A
Perigee: 708.8 km
Apogee: 710.5 km
Inclination: 98.2 °
Period: 98.8 minutes
Semi major axis: 7080 km
RCS: 4.7002 m2 (large)
Launch date: April 15, 1999
Source: United States (US)

LANDSAT 7 was a joint project between NASA, NOAA, and the US Geological Survey to obtain continuous high-resolution imagary of the Earth's surface. The satellite's main capabilities: environmental monitoring, disaster assessment, land use and regional planning, cartography, range management, oil and mineral exploration. Under the Land Remote Sensing Act of 1992 (PL 102-555), the Landsat program returned to the US Government and responsibilities assigned to NASA, NOAA, and the USGS. The Landsat 7 carried one instrument: (the Enhanced Thematic Mapper Plus (ETM+) The ETM+ was an improved version of the ETM on Landsat 6. The instrument provided improved spatial resolution. The LANDSAT 7 spacecraft provided improved ephemeris and attitude determination. The LANDSAT 7 spacecraft was built by Lockheed Martin Missiles and Space.
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NASA's NSSDC Master Catalog

Two Line Element Set (TLE):
1 25682U 99020A   17233.29320107  .00000131  00000-0  39077-4 0  9998
2 25682  98.2067 303.5349 0001199  85.0365 275.0967 14.57111415976076
Source of the keplerian elements: AFSPC