I was up at zero dark thirty to get to my planned shooting position early enough to set up. And one never knows with space launch. Sometimes the mission is scrubbed for the day. But this effort was well worth it as liftoff occurred on time at 3:40:32 AM local time.
Delta IV NROL-45 popped over the horizon right where I expected it. Good thing. You only get one shot to capture the arc of the flight from the horizon in a long exposure.