United Launch Alliance Delta IV Heavy NROL-44 Launch Scheduled for Sept. 26

Cape Canaveral Air Force Station, Fla., (Sept. 17, 2020) – The launch of a United Launch Alliance (ULA) Delta IV Heavy rocket carrying the NROL-44 mission for the National Reconnaissance Office is planned for Sept. 26, 2020. The launch period is 12:01-1:35 a.m. EDT. The team has reviewed all data and ground support equipment and determined that a ground system regulator internal component failure was the cause of the on-pad abort. Out of an abundance of caution all three regulators associated with each of the three common booster cores are being replaced and retested.