Waterside view of Delta 4 GPS 2F-6 Launch

The U.S. Space Force’s Space Systems Command (SSC) and the Space Operations Command (SpOC) shifted the GPS 3 Space Vehicle 07 spacecraft to a SpaceX Falcon 9 rocket from a United Launch Alliance Vulcan rocket due to delays in Vulcan’s certification.

A collection of pad photos from the United Launch Alliance Delta 4 rocket flight to deploy the NROL-45 spy satellite payload for the U.S. National Reconnaissance Office.

The USSF-87 will be the second national security flight for United Launch Alliance’s Vulcan rocket and the fourth flight of this type of rocket to date. Liftoff from pad 41 at Cape Canaveral Space Force Station is scheduled for 3:30 a.m. EST (0830 UTC).