
1) NASA satellite
Found on
https://www.crosswordclues.com/clue/icesat

The ICESat mission was designed to provide elevation data needed to determine ice sheet mass balance as well as cloud property information, especially for stratospheric clouds common over polar areas. It provides topography and vegetation data around the globe, in addition to the polar-specific coverage over the Greenland and Antarctic ice sheets....
Found on
http://en.wikipedia.org/wiki/ICESat
(Ice, Cloud, and Land Elevation Satellite) A NASA satellite designed to accurately measure the elevations of Earth`s ice sheets, clouds, and land, and help answer fundamental questions about the growth or retreat of Earth`s polar ice sheets and future global sea level chang...
Found on
http://www.daviddarling.info/encyclopedia/I/ICESat.html
No exact match found.