BY JUSTIN RAY January 30, 2001 -- Follow the countdown and launch of a Boeing Delta 2 rocket with the U.S. Air Force's GPS 2R-7 navigation satellite. Reload this page for the very latest on the mission.				Video vault The Boeing Delta 2 rocket lifts off from pad 17A carrying the GPS 2R-7 satellite for the U.S. Air Force.   PLAY (328k, 29sec QuickTime file) Snapshot The mission patch designed by the U.S. Air Force. Flight Data File Vehicle: Delta 2 (7925) Payload: GPS 2R-7 (SVN 54) Launch date: Jan. 30, 2001 Launch window: 0743-0811 GMT (2:43-3:11 a.m. EST) Launch site: SLC-17A, Cape Canaveral, Fla. Pre-launch briefing Launch timeline - Chart with times and descriptions of events to occur during the launch. Restricted zone - Map outlining the Launch Hazard Area where mariners should remain clear for the liftoff. Delta 2 rocket - Overview of the Delta 2 7925-model rocket used to launch GPS satellites. Global Positioning System - Description of the U.S. Air Force's space-based navigation network. GPS constellation - Chart shows the current status of the orbiting GPS satellite fleet. Delta directory - See our coverage of preview Delta rocket flights.