Fueling of the #DeltaIVHeavy is underway at Vandenberg Air Force Base in California for today’s #NROL71 launch at 11:05 am PST. Follow along with our Live Launch Blog for countdown reports: https://t.co/W9zB6LUGpw pic.twitter.com/Y476hBnuVT

— ULA (@ulalaunch) January 19, 2019