Official statement from SpaceX:
“SpaceX’s Falcon 9 rocket will launch the Dragon spacecraft to low-Earth orbit to deliver critical cargo to the International Space Station for NASA. SpaceX is targeting a late morning launch of its tenth Commercial Resupply Services mission (CRS-10) from Launch Complex 39A (LC-39A) at NASA’s Kennedy Space Center in Florida. This mission has an instantaneous launch window with the next attempt opportunity on Sunday, February 19 at 9:39:00 a.m. EST. Dragon will separate from Falcon 9’s second stage about 10 minutes after liftoff and attach to the station roughly two days later.
The CRS-10 mission will be SpaceX’s first launch from historic LC-39A at Kennedy Space Center. Following stage separation, the first stage of Falcon 9 will attempt to land at SpaceX’s Landing Zone 1 (LZ-1) at Cape Canaveral Air Force Station, Florida.”
Official full webcast available here: