Cygnus CRS Orb-4

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Cygnus CRS Orb-4
Mission type ISS resupply
Operator NASA
Spacecraft properties
Spacecraft type Enhanced Cygnus[1]
Manufacturer Orbital Sciences
Thales Alenia Space
Start of mission
Launch date April 1, 2015[2]
Rocket Antares 130[1]
Launch site MARS LP-0A
Contractor Orbital Sciences
Orbital parameters
Reference system Geocentric
Regime Low Earth
Inclination 51.6 degrees
Epoch Planned
Berthing at ISS
Berthing port Harmony nadir
← Cygnus CRS Orb-3 Cygnus CRS Orb-5

Cygnus CRS Orb-4,[2][3] 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.


Main article: Cygnus (spacecraft)

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.[2][4]


  1. ^ a b Bergin, Chris (22 February 2012). "Space industry giants Orbital upbeat ahead of Antares debut". NasaSpaceflight (not affiliated with NASA). Retrieved 29 March 2012. 
  2. ^ a b c "Worldwide launch schedule". Retrieved 11 July 2014. 
  3. ^ "International Space Station Flight Schedule". SEDS. 15 May 2013. 
  4. ^ "ISS Calendar". Spaceflight101. Retrieved 3 February 2014.