SPOT 1 was in operation from February 1986 to December 1990 and March 1992 to December 1992. SPOT 2 was launched in January 1990 and is still in operation. SPOT 3 was successfully launched in 1993. Radar has been flown on both aircraft and satellites and has the capability of being used at any time since it penetrates through all environmental and atmospheric conditions. The result is an obliquely illuminated view of the terrain that enhances subtle surface features.
Coverage is available for selected project areas in the conterminous United States and Alaska.
It was designed specifically to observe the Earth's oceans. Flown aboard the Space Shuttle missions STS 2 and STS 41G, the Imaging Radar experiment acquired images of varied terrains and ocean surfaces. SIR-B was able to acquire digital imagery from different incidence angles. Provide Data Take no. Prices vary according to Data Take.