Photos: More shots of Delta 4 liftoff

A Soyuz rocket, with the help of a Fregat upper stage, delivered an Egyptian Earth observation satellite into a polar orbit at an altitude of more than 400 miles Thursday, overcoming an apparent technical problem after launching from the Baikonur Cosmodrome in Kazakhstan, according to Russian news reports.

The rollout operation on Tuesday followed a day of evaluations using Boeing’s weight and center-of-gravity machine to determine the final measurements on the spacecraft. Launch is still targeting May 6 at 10:34 p.m. EDT (0234 UTC).

NASA has selected SpaceX and United Launch Alliance to deliver to orbit a joint U.S.-European oceanography mission and the next land imaging satellite in the Landsat series on Falcon 9 and Atlas 5 rockets.