Orbital ATK

Orbital ATK Inc.was an Americanaerospace manufactureranddefense industrycompany. It was formed in February 9, 2015 from the merger ofOrbital Sciences Corporationand parts ofAlliant Techsystems(ATK). Orbital ATK designed, built, and deliveredrocket engines,military vehicles,firearms,autocannons,missiles,ammunition,precision-guided munitions,satellites,missile approach warning systems,launch vehiclesandspacecraft.The company was acquired byNorthrop Grummanon June 6, 2018. The former Orbital ATK operations were renamed Northrop Grumman Innovation Systems and operated as a division until January 1, 2020 when a reorganization merged the operations into the company's other divisions.

Orbital ATK Inc.

Company type	Public
Traded as	NYSE:OA
Industry	Aerospace,Defense
Predecessors	Alliant Techsystems Orbital Sciences Corporation
Founded	February 9, 2015(2015-02-09)
Defunct	June 6, 2018(2018-06-06)
Fate	Acquired byNorthrop Grumman
Headquarters	Dulles, Virginia , United States
Key people	David W. Thompson (PresidentandCEO)
Revenue	US$1,348 million(2017)
Net income	US$61.2 million(2017)
Total assets	US$2,542 million(2017)
Total equity	US$2,045 million(2017)
Number of employees	13,900 (2017)
Website	orbitalatk.com(Archived)
Footnotes / references Financials as of December 31, 2017(final fiscal year end) References:

History

A merger ofOrbital Sciences Corporationand the defense and aerospace divisions ofAlliant Techsystems(ATK) was announced on April 29, 2014. The two companies had collaborated on several previous projects, including the use of 400 ATK rocket motors in Orbital's launch vehicles.The deal officially closed on February 9, 2015. ATK's sporting-goods division spun off to formVista Outdooron the same day.

On September 18, 2017,Northrop Grummanannounced plans to purchase Orbital ATK for US$7.8 billion in cash plus assumption of US$1.4 billion in debt.Orbital ATK shareholders approved the buyout on November 29, 2017.TheFederal Trade Commission(FTC) approved the acquisition with conditions on June 5, 2018, and on June 6, 2018, Orbital ATK was renamed Northrop Grumman Innovation Systems.

With Northrop Grumman's reorganization of its divisions effective January 1, 2020, Northrop Grumman Innovation Systems was split, with most of the sector merging with other Northrop Grumman businesses into a new Space Systems sector.

Organization

Flight Systems Group

Based inChandler, Arizona,the Flight Systems Group includes thePegasus,Minotaur,andAntareslaunch vehicles as well as solid-propulsion and aerostructures programs.The company also operates aLockheed L-1011 TriStarwide body jetliner, which is namedStargazerand is used to air launch Pegasus rockets carrying payloads into space.TheStargazeraircraft is also used for testing under specific programs. The Flight Systems Group became part of Northrop Grumman Space Systems on January 1, 2020.

Defense Systems Group

The Defense Systems Group, based in theBaltimore, Marylandarea, produces tactical missiles, defense electronics, and medium- and large-caliber ammunition. The division also produces fuzing and warheads for both tactical missiles and munitions; precision metal and composite structures for medium and large-caliber ammunition, military aircraft, ground vehicles, and missile systems; load, assembly, and pack (LAP) of medium caliber munitions; and propellants and powders for the canister and commercial markets. The Defense Systems Group became part of Northrop Grumman Defense Systems on January 1, 2020.

Space Systems Group

Orbital ATK's Space Systems Group provides satellites forcommercial,scientific, and security purposes.This group also produces theCygnusspacecraft, which delivers cargo to theInternational Space Station.The group was based at the company's headquarters on Warp Drive inDulles, Virginia.

Products

Rockets

Antares rocketlaunches theOrb-2mission.

• Antares,two- or three-stage medium-lift expendable launch vehicle
• Minotaur I,four-stage small-lift expendable launch vehicle
• Minotaur IV,four-stage small-lift expendable launch vehicle
• Minotaur V,five-stage launch vehicle used forgeosynchronous transfer orbitsandtrans-lunar orbits
• Minotaur VI,five-stage medium-lift expendable launch vehicle
• Minotaur-C,four-stage small-lift expendable launch vehicle
• Pegasus,air-launched four-stage small-lift launch vehicle
• OmegA,A cancelled medium to heavy lift launch vehicle.

Rocket engines

A GEM 40 solid rocket motor being prepared for integration with a Delta II launch vehicle

• GEM-40,solid rocket booster used on theDelta IIrocket
• GEM-60,solid rocket booster used on theDelta IVrocket
• GEM-63,solid rocket booster used on theAtlas Vrocket
• GEM-63XL,solid rocket booster planned to be used on theVulcanrocket
• Castor 4,solid rocket used on theMaxussounding rocket
• Castor 30,solid rocket used on theAntaresrocket
• Castor 120,solid rocket used on theMinotaur-Crocket
• Space Launch System Solid Rocket Booster,based on theSpace Shuttle Solid Rocket Booster

Spacecraft

The spacecraftCygnustransporting cargo to theISSon behalf ofNASA.

• Al Yah 3,communications satellite forAl Yah Satellite Communications
• HYLAS-4,communications satellite forAvanti Communications
• SES-16,communications satellite forSES S.A.
• Landsat 9,environmental satellite forNASAandUnited States Geological Survey(USGS)
• JPSS-2,weather and environmental satellite forNASAandNOAA
• ICESat-2,ice-topography satellite forNASA
• Transiting Exoplanet Survey Satellite(TESS),space telescopeforNASA
• Ionospheric Connection Explorer(ICE), science mission forNASA
• Cygnus,automatedcargo spacecraftto supply theISS
• Dawn,space probe forNASAcurrently indecaying orbitaroundCeres

Munitions

• Mk310 PABM-Tair burstrounds forMK44.

Firearms

• XM25 CDTE,anairburstgrenade launcher.

See also

• Northrop Grumman business sectors
• Thiokol