LEO spacecraft are also used to provide images of the Earth for civil, scientific, and military applications. In 2008 the U.S. National Oceanic and Atmospheric Administration’s (NOAA) Advisory Committee on Commercial Remote Sensing reported that there were ## satellites in use or in development for this purpose, operated by ## different countries. The U.S. has been the leader in the commercialization of electro-optical remote sensing technology, but recent years have seen other countries begin to excel in the development of synthetic aperture radar (SAR) systems.
Note: This exhibit is from The Space Report 2009. Please refer to this year’s exhibits for the most current data as numbers may have been revised since this edition was published.