A Vulcan Centaur rocket is scheduled to launch two Geosynchronous Space Situational Awareness Program (GSSAP) satellites for the U.S. military early on February 12 from Cape Canaveral Space Force Station in Florida. This mission, designated USSF-87, marks the fourth flight for the Vulcan Centaur, which has been certified by the U.S. Space Force for national security launches. The GSSAP satellites will operate in geostationary orbit, approximately 22,236 miles above Earth, to provide crucial space surveillance, acting as a "neighborhood watch" to enhance flight safety and collision avoidance for all spacefaring nations. The launch window opens at 3:30 a.m. EST, and the mission will also carry research and development payloads.