Proton poised for launch

Russian technicians towed a Proton rocket to launch pad 39 at the Baikonur Cosmodrome on Thursday and hydraulically rotated the 191-foot-tall launcher into a vertical position for Sunday's launch a broadcasting satellite for Sirius XM Radio.

The Proton is set for liftoff at 1812:56 GMT (2:12:56 p.m. EDT). The rocket's Breeze M upper stage will ignite five times to inject the Sirius FM6 spacecraft into geostationary transfer orbit about nine hours after launch.

See our Mission Status Center for live coverage of the launch.

Credit: Roscosmos