A Delta IV rocket lifts GPS IIF-6 into space from Cape Canaveral Air Force Station, Fla., May 16, 2014. Photo: ULA.
The Air Force is set for Thursday’s launch of the National Reconnaissance Office (NRO) payload NROL-37, according to a service statement.
Launch window opens at 1:59 p.m. EDT at Cape Canaveral Air Force Station, Fla. Launch will take place on a United Launch Alliance (ULA) Delta IV Heavy rocket. The largest of the Delta IV family, the Heavy version features three common booster cores mounted together to form a triple-body rocket.
ULA said late Tuesday there was a 40 percent chance of favorable weather conditions. ULA is a joint venture of Lockheed Martin [LMT] and Boeing [BA].