Snapshots from Atlas 5 launch

This is the ascent timeline to be followed by the United Launch Alliance Atlas 5 rocket in launching the Mobile User Objective System satellite No. 5 on Friday at 10:30 a.m. EDT (1430 GMT).

A European Ariane 5 rocket delivered two commercial communications satellites to orbit Thursday after Arianespace’s ground team lost telemetry from the launcher during its climb into orbit, raising concerns that the mission might have failed. The SES 14 and Al Yah 3 satellites are confirmed in orbit and healthy, but the parameters of their orbits are unknown. Both were heading toward 22,000-mile-high geostationary perches over the equator.

A three-man crew led by six-time space flier Yuri Malenchenko rode a Soyuz rocket into orbit Tuesday, speeding away from a Kazakh launch pad on a six-hour chase of the International Space Station. Docking occurred at 1733 GMT (12:33 p.m. EST).