LANDSAT 7

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LANDSAT 7 is classified as:

Earth resources

NORAD ID: 25682

Int'l Code: 1999-020A

Perigee: 708.7 km

Apogee: 710.3 km

Inclination: 98.1 °

Period: 98.8 minutes

Semi major axis: 7080 km

RCS: 4.7002 m² (large)

Launch date: April 15, 1999
Source: United States (US)
Launch site: AIR FORCE WESTERN TEST RANGE (AFWTR)

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.

1 25682U 99020A   20023.83956101 -.00000012  00000-0  70667-5 0  9998
2 25682  98.1029  90.6668 0001120  78.1158 282.0155 14.57164288105031

Source of the keplerian elements: AFSPC