Cygnus CRS Orb-4
|Mission type||ISS resupply|
|Spacecraft type||Enhanced Cygnus|
Thales Alenia Space
|Start of mission|
|Launch date||April 1, 2015|
|Launch site||MARS LP-0A|
|Berthing at ISS|
|Berthing port||Harmony nadir|
Cygnus CRS Orb-4, also known as Orbital Sciences CRS Flight 4, is the fifth planned flight of the Orbital Sciences' uncrewed resupply spacecraft Cygnus, its fifth flight to the International Space Station and the sixth launch of the company's Antares launch vehicle.
This is the fourth of eight flights by Orbital Sciences under the Commercial Resupply Services contract with NASA. This will be the second flight of the Antares 130 configuration and the inagural flight of the larger Enhanced Cygnus PCM. The mission is expected to launch on April 1, 2015.
- Bergin, Chris (22 February 2012). "Space industry giants Orbital upbeat ahead of Antares debut". NasaSpaceflight (not affiliated with NASA). Retrieved 29 March 2012.
- "Worldwide launch schedule". spaceflightnow.com. Retrieved 11 July 2014.
- "International Space Station Flight Schedule". SEDS. 15 May 2013.
- "ISS Calendar". Spaceflight101. Retrieved 3 February 2014.
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