The countdown has begun! ULA’s #AtlasV rocket is set to launch the #GOESS mission for @NASA and @NOAASatellites today! The 2-hour launch window opens at 5:02 p.m. EST. Live broadcast at 4:30 p.m. EST @LockheedMartin @45thSpaceWing https://t.co/5rFPW7aYFs pic.twitter.com/jJ6stG5abU

— ULA (@ulalaunch) March 1, 2018