SpaceX is planning to launch Falcon 9 rocket to deliver the Zuma spacecraft to low-Earth orbit.. Zuma is expected to launch on Friday 8:00 PM EST, The Zuma spacecraft will launch on Falcon 9, a two-stage rocket designed from the ground up by SpaceX for the reliable and cost-efficient transport of satellites and SpaceX's Dragon spacecraft. Falcon 9 was designed focusing on the maximum reliability.
Talking about Falcon-9, it has simple two-stage configuration minimizes the number of separation events- and with nine first-stage engines, it can safely complete its mission even in the event of an engine shutdown. It is scheduled to launch from Launch Complex 39A (LC-39A) at Kennedy Space Center. The chief mission of launching the satellite is still not clear but according to sources, it is launching for some government agency.
Live of the event can be viewed from spaceX website.