Video: Weather causes Atlas 5 countdown hold

A ULA Atlas 5 rocket is set to launch no earlier than 2 p.m. EDT (1800 UTC) on Friday, Oct. 6. It will sent up two prototype satellites for Amazon’s Project Kuiper satellite internet constellation.

A United Launch Alliance Atlas 5 rocket departs Vandenberg Air Force Base today at 10:30 a.m. local time (1:30 p.m. EST; 1830 GMT) to deliver the commercial WorldView 4 Earth-imaging satellite into polar orbit for DigitalGlobe.

A United Launch Alliance Delta 4 rocket will deliver the U.S. Air Force’s tenth Wideband Global SATCOM communications satellite to a supersynchronous transfer orbit around 37 minutes after lifting off from Cape Canaveral.