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22-Jul-02 | 30 years of Landsat

Tuesday, 23 July, marks the 30th anniversary of the launch of the first Earth Resources Technology Satellite, better known as Landsat-1. The Delta 0900 vehicle that launched it was the first to use the four-digit designator; more importantly, it was also the first to use 9 solid booster motors, and the first flight of the Delta Inertial Guidance System (DIGS). Initially considered an experimental satellite, Landsat-1 and its successors were so successful that today the program is referred to as “the central pillar of the national remote sensing capability.” (NASA Press Release, 22-Jul-02)


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