Photos: Thursday’s Atlas 5 rollout to launch pad

This is our comprehensive fact sheet previewing the United Launch Alliance Atlas 5 rocket deployment of the classified NROL-52 payload for the National Reconnaissance Office.

Watch a view of the Falcon 9 rocket’s liftoff Wednesday from the Kennedy Space Center as seen from the press site around three miles from the launch pad.

This is will be the fourth pair of O3b mPOWER satellites launched to a medium Earth orbit. Liftoff from Launch Complex 39A is set for 5:26 p.m. EST (2226 UTC).