Antares 230 | Cygnus CRS NG-11 (S.S. Roger Chaffee)

Antares 230 | Cygnus CRS NG-11 (S.S. Roger Chaffee)

Launch Area 0 A
Wallops Island, Virginia, USA













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Northrop Grumman Space Systems

Northrup Grumman Space Systems designs, builds and delivers space, defence and aviation-related systems to customers around the world. They aquired Orbital ATK in 2018 along with its launchers and ongoing missions.


Cygnus CRS NG-11 (S.S. Roger Chaffee)

This is the 12th planned flight of the Orbital ATK's uncrewed resupply spacecraft Cygnus and its 11th flight to the International Space Station under the Commercial Resupply Services contract with NASA. Northrop Grumman named the vehicle after Apollo 1 astronaut Roger Chaffee.

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Cygnus NG-11 "S.S. Roger Chaffee"

Serial Unknown

Launch Crew Count 0

Status Single Use

Landing Time 2019-12-06T15:28:00+0000


Antares 230

Height 42.50 Meters

Max Stages 3

Mass To GTO 0 kg

Liftoff Thrust 3844 kN

Diameter 3.90 Meters

Mass To LEO 7800 kg

Liftoff Mass 286 Tonnes

Launch Success 5

Consecutive Success 5

Maiden Flight 2016-10-17

Launch Failures 0



Commercial Resupply Services

Commercial Resupply Services (CRS) are a series of flights awarded by NASA for the delivery of cargo and supplies to the International Space Station.The first CRS contracts were signed in 2008 and awarded $1.6 billion to SpaceX for twelve cargo Dragon and $1.9 billion to Orbital Sciences for eight Cygnus flights, covering deliveries to 2016. The Falcon 9 and Antares rockets were also developed under the CRS program to deliver cargo spacecraft to the ISS.

International Space Station

The International Space Station programme is tied together by a complex set of legal, political and financial agreements between the sixteen nations involved in the project, governing ownership of the various components, rights to crewing and utilization, and responsibilities for crew rotation and resupply of the International Space Station. It was conceived in 1984 by President Ronald Reagan, during the Space Station Freedom project as it was originally called.

Related Events

NG-11 Cygnus Berthing


Northrop Grumman's NG-11 Cygnus is scheduled to berth with the ISS several days after its launch. It is set to bring between 3,500 to 3,750 kilograms of cargo to the station.

NG-11 Cygnus Release and Reentry


The Northrop Grumman NG-11 Cygnus 'S.S. Roger Chaffee' will undock before initiating a destructive reentry into the Earth's atmosphere taking waste along with it.

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