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The GOES-R satellite began deployment of the solar array that will generate electricity for the spacecraft during its mission.

Spacecraft sep! Cheers and applause erupt from the launch teams as the GOES-R spacecraft separates from the Centaur upper stage to fly freely for the first time! Next up, solar array deployment. GOES-R is in a transfer orbit of 19,000 miles by 4,400 miles. It will circularize that orbit to more than 22,000 miles above …

The RL10 engine on the Centaur upper stage shut down as planned. The Centaur is positioning the GOES-R satellite for separation shortly.

The Centaur engine ignited on schedule and is pushing the GOES-R spacecraft into its proper transfer orbit. The burn will last about a minute-and-a-half.

The Centaur stage is firing its small thrusters to position itself and its GOES-R payload into the proper position to fire its main engine for the final time during this mission. Everything remains on schedule for the flight.

The GOES-R satellite and Centaur upper stage continue to perform well tonight. Launch controllers are standing by for the final burn of the Centaur upper stage engine at 10:09 p.m. EST.

Three new crew members are aboard the International Space Station. The hatches on the space station and Soyuz MS-03 opened at 7:40 p.m. EST, marking the arrival to the orbiting laboratory for NASA astronaut Peggy Whitson, Oleg Novitskiy of the Russian space agency Roscosmos and Thomas Pesquet of ESA (European Space Agency). Along with Expedition …

Two hours and 29 minutes after lifting off from Florida, the GOES-R spacecraft and Centaur upper stage are performing as planned as they orbit high above Earth. There is less than one hour to go in this final coast phase before the Centaur ignites its RL10 engine one more time to place the GOES-R satellite …

Noted television meteorologist Al Roker attended today’s launch of the GOES-R spacecraft and talked with NASA TV earlier. His interest in the mission, he said, comes from the fact that the satellite will give forecasters much more information to help them with their predictions. GOES-R carries sensors that are much more advanced than previous GOES …

As the Centaur upper stage and GOES-R spacecraft continue tonight’s coast phase, take a look at liftoff earlier from Space Launch Complex 41 in Florida. Launch occurred at 6:42 p.m. EST.