DULLES, Va., 19 Aug. 2014. Orbital Sciences Corp. (NYSE:ORB) has completed its third cargo delivery mission to the International Space Station (ISS) in the past 10 months, including the initial demonstration flight completed in October 2013 and the first two operational missions under the company’s $1.9 billion Commercial Resupply Services (CRS) contract with NASA. Its third CRS mission of 2014 is currently scheduled to take place in mid-October.
The company’s Cygnus spacecraft carried out the cargo delivery mission for the second CRS mission, called “Orb-2,” unberthed from the ISS on 15 August 2014, completing a 31-day stay at the orbiting laboratory. Cygnus reentered Earth’s atmosphere over the Pacific Ocean east of New Zealand at approximately 9:15 a.m. (EDT) on 17 August 2014, concluding the Orb-2 mission.
“Orbital’s third cargo delivery mission to the International Space Station concluded with the controlled reentry of Cygnus over the unpopulated expanses of the Pacific Ocean,” says Frank Culbertson, executive vice president and general manager of Orbital’s Advanced Programs Group. “From start to finish, we are very pleased with the results of this mission. Our team is proud to be providing essential supplies to the ISS crew so they can carry out their vital work in space. With three successful cargo delivery missions now complete, it is clear our public-private partnership with NASA is proving to be a positive asset to the productivity of the ISS. We are looking forward to the next Antares launch and the Cygnus cargo delivery mission that is coming up in about two months.”
The Orb-2 mission began on 13 July when Orbital’s Antares rocket launched Cygnus into orbit from the Mid-Atlantic Regional Spaceport (MARS) located at NASA’s Wallops Flight Facility in Eastern Virginia. Cygnus, which carried 3,669 pounds (1,664 kilograms) of cargo and science payloads, berthed with the ISS three days later on 16 July. Prior to its departure from the station, the astronauts loaded the cargo module with approximately 3,550 pounds (1,615 kilograms) of items for disposal.
Under the CRS contract with NASA, Orbital is using Antares and Cygnus to deliver up to 44,000 pounds (20,000 kilograms) of cargo to the ISS over eight missions through late 2016. For these missions, NASA will manifest a variety of essential items based on ISS program needs, including food, clothing, crew supplies, spare parts and equipment, and scientific experiments.
Preparations are already well advanced for the next Cygnus cargo delivery flight, the Orb-3 mission, scheduled to take place in October. The Antares rocket is now undergoing final assembly and testing at Wallops Island, while the Cygnus spacecraft is being prepared for shipment from Orbital’s Dulles, VA production facilities to the Wallops launch site in September. The Orb-3 flight is expected to deliver its heaviest cargo manifest yet, with 5,050 pounds (2,290 kilograms) of cargo and payloads to be sent to the ISS.
-- Cygnus Cargo Spacecraft description http://www.intelligent-aerospace.com/articles/2014/08/cygnus-cargo-spacecraft.html