SpaceX test-fired a Falcon 9 rocket at Cape Canaveral on Saturday evening, clearing the way for a delayed liftoff with the Israeli-owned Amos 17 commercial communications satellite as soon as Tuesday, assuming SpaceX can work its way into a busy schedule before a previously-planned Atlas 5 launch this week on the U.S. Air Force’s Eastern Range.

The United Launch Alliance Atlas 5 rocket with the NROL-52 spacecraft aboard moved to the launch pad this morning for liftoff Saturday to serve the national interest. Liftoff is scheduled for 3:31 a.m. EDT (0731 GMT).

The SMAP observatory to map soil moisture distribution from 426 miles in space and its workhorse booster have been cleared for launch Thursday morning from California.