Two U.S.-built communications satellites rode the 100th European-made Ariane 5 rocket into orbit Tuesday from the jungle of French Guiana. Liftoff occurred at 2238 GMT (6:38 p.m. EDT) after a 45-minute delay caused by a range technical problem.

For the second day running, bad weather at Cape Canaveral forced the postponement of the NROL-52 satellite launch. Today, the weather officer stopped the countdown with 97 seconds left.

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).