2019 Mar 23, 8:46pm
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GPS IIR-1 or GPS SVN-42 was the first Block IIR GPS satellite to be launched. It was to have been operated as part of the United States Air Force Global Positioning System. It was launched on January 17, 1997, however it was destroyed 13 seconds into its flight due to a malfunction of the Delta II rocket that was carrying it. It was estimated to have cost US$40 million, with its carrier rocket costing $55 million.