VANDENBERG AIR FORCE BASE, Calif. (AP) — NASA has scrubbed the launch of an Earth-observing satellite because of wind conditions over California and technical problems.

The Soil Moisture Active Passive satellite had been scheduled for launch from Vandenberg Air Force Base before dawn Thursday, but upper-level winds exceeded limits for the Delta 2 rocket.

The launch has been rescheduled for Saturday morning.

The $916 million mission, managed by NASA's Jet Propulsion Laboratory, is designed to track the amount of water locked in soil.