GPS IIF-6 Launch Scrubbed, Rescheduled for Friday Published May 15, 2014 LOS ANGELES AIR FORCE BASE, Calif. -- The launch of GPS IIF-6 aboard a United Launch Alliance Delta IV was scrubbed today due to weather. It has been rescheduled for Friday, May 16. The launch window opens at 8:03 p.m. EDT. The forecast for May 16 shows a 90 percent chance of favorable weather conditions for the launch.