The countdown has begun for this morning's #DeltaIV rocket launch of #GPSIIISV02 for the @USAirForce and @AF_SMC. The launch team is on console and clocks are ticking. Launch is planned for 9amEDT, and the live webcast will begin at 8:40amEDT at: https://t.co/viyWfUdVvo pic.twitter.com/SAd28NcvhG

— ULA (@ulalaunch) August 22, 2019