Landsat 7
Orbiter
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Landsat 7 is the seventh satellite of the Landsat program. Launched on 15 April 1999, Landsat 7's primary goal is to refresh the global archive of satellite photos, providing up-to-date and cloud-free images. Wikipedia
Launch date: April 15, 1999
Orbit height: 438 mi
Cost: 666 million USD (1999)
Manufacturer: Lockheed Martin Space
Speed on orbit: 4.735 miles/s
Bus: TIROS-N
Dimensions: 4.04 metre long; 2.74 metre diameter