Spaceflight Now + Premium video content for our Spaceflight Now Plus subscribers. Countdown hold The first launch attempt is halted when an alarm is sounded less than a minute before liftoff. (58sec file)  PLAY Liftoff A short video clip showing the liftoff and initial seconds of flight for the Delta 2 rocket and GPS 2R-11 satellite. (1min 26sec file)  PLAY Extended launch The Boeing Delta 2 rocket launches the Global Positioning System 2R-11 military navigation satellite from Cape Canaveral, Florida. (3min 01sec file)  PLAY Spacecraft separation Successful deployment of the GPS 2R-11 spacecraft is annoucned about 68 minutes after liftoff. (46sec file)  PLAY Become a subscriber More video The Mission Rocket: Delta 2 (7925) Payload: GPS 2R-11 Date: March 20, 2004 Window: 12:39-12:53 p.m. EST (1739-1753 GMT) Site: SLC-17B, Cape Canaveral, Florida Satellite feed: AMC 9, Transponder 6, C-band Mission preview story Launch events timeline Ground track map time Launch hazard area Mission Status Check the status center for complete coverage. The Payload The Global Positioning System 2R-11 satellite, built by Lockheed martin, will replace an older craft in the U.S. military's navigation network. Learn more The Launcher Boeing's workhorse Delta 2 rocket has flown more than 100 times, launching military, scientific and commercial satellites. Delta 2 fact sheet The pre-launch process Archived Delta coverage The Venue Cape Canaveral's Launch Complex 17 is the East Coast home of Delta 2. Learn more NewsAlert Sign up for our NewsAlert service and have the latest news in astronomy and space e-mailed direct to your desktop. Enter your e-mail address: Privacy note: your e-mail address will not be used for any other purpose.		BY JUSTIN RAY Follow the countdown and launch of the Boeing Delta 2 rocket with the U.S. Air Force's GPS 2R-11 navigation spacecraft. Reload this page for the very latest on the mission.