Orbital Loads Final Cargo into Cygnus as NASA Works Through Cooling Problem

Credit: Orbital Sciences Corporation
Credit: Orbital Sciences Corporation

ISS Commercial Resupply Services Mission (Orb-1)

Launch Date: No Earlier Than December 19, 2013
Launch Site: Mid-Atlantic Regional Spaceport, Wallops Island, VA
Launch Window: 9:19 – 9:24 pm EST (02:19 – 02:24 am GMT Dec. 20)
Cygnus Arrival at ISS : No Earlier Than December 22, 2013

December 15, 2013 Update
Via Orbital Sciences Corporation

The Cygnus team has been authorized to load the final cargo in the Pressurized Cargo Module (PCM ) today. This cargo is about 95kg of time-sensitive cargo consisting primarily of science payloads. We expect to finish loading the cargo later this afternoon, followed by about twelve hours of Cygnus closeouts including a purge of the air in the PCM, the final closing of the hatch, and leak checks. Installation of the Antares payload fairing is scheduled to occur on Monday.

Loading the final cargo today allows us to continue to target a launch on December 19. However, NASA is still assessing the thermal control issue on the space station, and a final determination to launch has not yet been made. If NASA gives us the go-ahead to proceed, rollout of Antares to the pad will take place early Tuesday morning.