Watch Live Today: Atlas V Rocket Launching Echostar 19 Satellite

Update for 1:47 pm ET: ULA halted the countdown for EchoStar 19 just about 1 minute before launch time due to a last-minute issue related to the Atlas V avionics system. The launch team is assessing the issue to make a decision on whether to proceed with today's launch. Originally slated to 1:27 p.m. EST (1827 GMT), the Atlas V has a 2-hour window that closes at 3:27 p.m. EST (2027 GMT) for today's launch. ULA's launch webcast will be streamed on ULA's YouTube channel, which will also appear in