Cape Canaveral AFS, Fla (Aug. 17, 2009) - A United Launch Alliance Delta II rocket blasts off with the Air Force's Global Positioning System IIR-21 satellite from Space Launch Complex-17A at 6:35 a.m. EDT today. This was the 48th successful and last in a series of GPS launches on a Delta II rocket ending an era that began in February 1989. During that time, the Delta II/GPS tandem boasted a 98 percent mission success rate. (Photo by Carleton Bailie, United Launch Alliance)

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Photo by: Carleton Bailie, United Launch Alliance |  VIRIN: 090817-F-0000B-001.JPG