Atlas H

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Atlas H
Atlas-H.jpg
Launch of the last Atlas H with NOSS-9.
Function Expendable launch system
Manufacturer Convair
General Dynamics
Country of origin  United States
Launch history
Status Retired
Launch sites SLC-3E, Vandenberg
Total launches 5
Successes 5
First flight 9 February 1983
Last flight 15 May 1987

The Atlas H was an American expendable launch system derived from the SM-65 Atlas missile. It was a member of the Atlas family of rockets, and was used to launch five clusters of NOSS satellites for the US National Reconnaissance Office. Two flights also carried LIPS satellites, as secondary payloads for the United States Naval Research Laboratory.

The Atlas H was a stage and a half rocket, using the enhanced Atlas rocket designed for use as the first stage of the Atlas G rocket,[1] which differed from the Atlas H in having a Centaur upper stage. This stage was later reused as the first stage of the Atlas I. In practice, an MSD upper stage was flown on all five launches.[2]

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