Live coverage: Cygnus rendezvous and arrival journal and webcast

This is the launch timeline to be followed by the Atlas 5 rocket’s ascent into orbit from Cape Canaveral with the GOES-S weather satellite. Launch is scheduled for Thursday during a two-hour window opening at 5:02 p.m. EST (2202 GMT).

In addition to carrying an Air Force electric propulsion thruster test, a materials research investigation sponsored by NASA’s Marshall Space Flight Center will be flying aboard the X-37B miniature spaceplane later this month.

The first piloted test flight of Boeing’s CST-100 Starliner commercial crew capsule has been delayed to early 2018 as designers wrestle with the mass of the spacecraft, aerodynamic loads the vehicle will see during launch, and new software requirements levied by NASA, company officials said.