Antares Status Update

Dan Givens, Antares Site Manager for Wallops Flight Facility

January 2017

Antares Launch Vehicle Overview

Currently Under Contract to Support NASA

International Space Station (ISS) Re-supply Missions

Thru 2024

VEHICLE PARAMETERS• Gross Liftoff Mass: 290,000 – 310,000 kg• Vehicle Length: 42.5 m• Vehicle Diameter: 3.9 m

STAGE 1• Liquid Oxygen/RP-1 fueled• Two Energomash RD-181 engines with

Independent Thrust Vectoring

• 3.9 meter Aluminum Booster

STAGE 2• Orbital ATK CASTOR® 30XL Solid Motor

with Active Thrust Vectoring• Orbital MACH avionics module• Cold-gas 3-axis Attitude Control System

PAYLOAD FAIRING• 3.9 meter diameter by 9.9 meter

envelope• Composite Construction• Non-contaminating Separation

Systems

Available Commercially

7000 Kg to 200 Km x 38o

~3500 kg to SSO from WFF

Medium Lift Performance

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Antares 230 Configuration and CRS1 Manifest

PayloadFairing

AvionicsModule

Castor 30XL2nd Stage

LO2 Tank

IntertankRP-1TankAft

Bay

2x RD-181 Main

Engines

Downcomer

Interstage

Fairing ExtensionCylinder & Adapter

MotorCone

Fairing JettisonCylinder

ThrustAdapter

Mission Configuration

COTS Test Flight 110

COTS-Demo 110

Orb-1 120

Orb-2 120

Orb-3 130

OA-4 Atlas V

OA-6 Atlas V

OA-5 230

OA-7 Atlas V

OA-8 230

OA-9 230

OA-10 230

OA-11 230

Baseline Core, AJ26 Engines, CASTOR 30 110Baseline Core, AJ26 Engines, CASTOR 30B 120Baseline Core, AJ26 Engines, CASTOR 30XL 130Baseline Core, RD-181 Engines, CASTOR 30XL 230

Antares Configuration Key

Antares 230 Configuration was Developed by Upgrading Main Engines to RD-181 and Adapting other Vehicle and Ground Systems to Accommodate the New Engines

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Antares 230 Stage Test Summary

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Antares 230 Stage Test Overview

The Antares 230 Stage Test was the major system-level verification activity prior to the OA-5 return to flight mission

Similar to the Stage Test conducted in 2013 prior to the first flight of Antares, the test article was comprised of the integrated first stage of the Antares 230 launch vehicle

The Test was performed at Pad 0A at Wallops Flight Facility Operation/Test objectives & description summary

The Wet Dress Rehearsal verified and demonstrated all processes and operations required to properly configure the test article for engine ignition

The Hot Fire test verified operation and performance of the integrated Antares 230 first stage featuring the upgraded RD-181 propulsion system

− The Hot Fire test featured a 30 second duration firing of both RD-181 main engines at flight thrust levels

− Mixture ratio excursions and TVC profiles were commanded during the Hot Fire test

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Stage Test Overview (Pad Rollout)

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Stage Test Completed 31 May 2016

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OA-5 Mission Data Review Summary

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Orbital ATK Combined Antares/Cygnus TeamHas Heritage From Five Prior Flights

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OA-5 Mission Summary

OA-5 launched successfully from Wallops Flight Facility at 7:45pm EDT on 17 Oct 2016 within a 5 minute window Launch occurred on the first launch attempt

All Antares mission requirements were achieved, including: Orbit insertion requirements Payload separation requirements Payload ground and flight environments

In summary, OA-5 was a very successful mission with no identified flight anomalies

OA-5 Cygnus Mission Performance

Excellent launch and injection from Antares First flight with two TriDARs Second flight of the NRCSD-E Second flight of NASA Saffire Experiment Cygnus successfully rendezvoused and berthed with ISS Stayed attached to ISS for 30 days Deployed four cubesats post departure

100 km above ISS No anomalies are being tracked

Excellent Cygnus performance throughout the mission

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OA-5 MissionLiftoff

OA-5 MissionAscent – Second Stage Burn

OA-5 MissionCygnus Grappled

OA-5 MissionWelcome S.S. Alan Poindexter!

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Antares Future Manifest

Mission Launch Date Launch VehicleConfiguration

OA-5 Oct 2016 Antares 230

OA-8 Jun 2017 Antares 230

OA-9 Oct 2017 Antares 230

OA-10 Mar 2018 Antares 230

OA-11 Dec 2018 Antares 230

NOTE: CRS2 Missions are Yet to be Awarded (2019 – 2024)

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Summary

Orbital ATK has completed development of the new Antares 230 configuration Features new RD-181 main engines RD-181 main engines completed certification for use on Antares Stage test completed successfully on 31 May 2016

Antares returned to flight with the OA-5 mission on 17 Oct 2016 Data review has shown all systems performed very well Key engineering models on Stage 1 and Stage 2 were verified Antares performance to orbit slightly better than expected – will enable more

performance on future flights Orbital ATK has been selected for the follow on CRS2 contract

Period of Performance (2019 – 2024) Missions have yet to be awarded (6 minimum missions)

The OA-5 Mission Was a Spectacular Success and Has Returned Antares to Flight Operations!

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Thank You for Attending!