SpaceX successfully launched its Falcon 9 mission with the fourth GPSII satellite at 18:24 EST (23:24 UTC) on Thursday, 5 November.
The launch followed a scrub on 2 October, when Falcon 9 aborted two seconds before liftoff. The resulting investigation identified an issue within the gas generators on some first stage engines and prompted several engine swaps across the Falcon 9 fleet and affected multiple upcoming launches.