NOAA’s Joint Polar Satellite System-1 spacecraft is slated to launch on a United Launch Alliance Delta II rocket Wednesday morning from Space Launch Complex 2 at California’s Vandenberg Air Force Base. Liftoff time is 1:47 a.m. PST (4:47 a.m. EST).
Meteorologists with the U.S. Air Force 30th Weather Squadron expect an 80 percent chance of “go” weather conditions at launch time, with the possibility for ground winds posing the primary concern.
Join us for updates from the countdown beginning at 1:15 a.m. on the blog and on NASA TV.