The Dec. 5 launch of a United Launch Alliance (ULA) Atlas V 551 rocket carrying the Department of Defense’s (DOD) Space Test Program 3 (STP-3) mission has been scrubbed. During initial operations, a leak was discovered in the Rocket-Propellant-1 (RP-1) ground storage system. Launch of the mission – which hosts NASA’s Laser Communications Relay Demonstration (LCRD) and the NASA-U.S. Naval Research Laboratory Ultraviolet Spectro-Coronagraph (UVSC) Pathfinder – is now scheduled for Monday, Dec. 6, at 4:04 a.m. EST.
NASA TV live launch coverage will start approximately 35 minutes before launch on Dec. 6, at 3:30 a.m. EST: