Surface Water and Ocean Topography (SWOT) Launch Delayed

NASA, the French space agency Centre National d’Études Spatiales, and SpaceX now are targeting 3:46 a.m. PST on Friday, Dec. 16, for launch of the Surface Water and Ocean Topography (SWOT) mission.

After SpaceX’s Falcon 9 rocket went vertical on the pad at Space Launch Complex 4 East (SLC-4E) at Vandenberg Space Force Base in California, teams identified moisture in two Merlin engines on the rocket’s first stage booster.

Teams completed inspections of the rocket’s engines today, but will use the additional time to complete data reviews and analysis before a launch attempt.

The SWOT satellite is healthy, and the weather forecast remains favorable for liftoff on Friday morning. Live launch coverage will begin at 6 a.m. EST (3 a.m. PST) on Friday on NASA Television.