BY JUSTIN RAY July 16, 2000 -- Follow the countdown and launch of a Boeing Delta 2 rocket with the U.S. Air Force's GPS 2R-5 navigation satellite. Reload this page for the very latest on the mission.				Snapshot The mission patch designed by the U.S. Air Force. Video vault The Boeing Delta 2 rocket lifts off from pad 17A carrying the GPS 2R-5 satellite for the U.S. Air Force.   PLAY (312k, 44sec QuickTime file) A video camera mounted on the exterior of the Boeing Delta 2 rocket's second stage shows the view of ignition and liftoff from Cape Canaveral.   PLAY (198k, 32sec QuickTime file) The Boeing Delta 2 rocket's three air-lit solid rocket boosters are ignited and the six ground-start motors are jettisoned as seen from ground.   PLAY (62k, 09sec QuickTime file) Onboard camera shows the air-lit solid rocket boosters igniting and the six spent ground-started motors being jettisoned.   PLAY (145k, 23sec QuickTime file) Onboard camera shows the spent air-lit solid rocket boosters being jettisoned and the first stage main engine still firing.   PLAY (178k, 29sec QuickTime file) Onboard video camera shows the spent first stage separating, second stage engine start and fairing jettison.   PLAY (222k, 36sec QuickTime file) Download QuickTime 4 software to view this file. Flight profile Track the major launch events for the Delta 2 rocket carrying the GPS 2R-5 satellite on Spaceflight Now's interactive flight profile page (requires JavaScript). Pre-launch briefing Launch timeline - Chart with times and descriptions of events to occur during the launch. Orbit trace - A map shows the launch track for the mission. 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. Explore the Net Delta 2 - Official Web site of Boeing's Delta 2 expendable launch vehicle program. GPS - Global Positioning System Joint Program Office at U.S. Air Force. LMMS - Lockheed Martin Missiles & Space built GPS 2R-5. 1st Space Launch Squadron - Oversees Delta rocket launches and facilities at Cape Canaveral Air Force Station in Florida. History of Delta - A private Web site devoted to past Delta launches with valuable facts and figures.