2. 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
2
3. Antares 230 Configuration and CRS1 Manifest
Payload
Fairing
Avionics
Module
Castor 30XL
2nd Stage
LO2 Tank
Intertank
RP-1
TankAft
Bay
2x RD-181
Main
Engines
Downcomer
Interstage
Fairing Extension
Cylinder & Adapter
Motor
Cone
Fairing
Jettison
Cylinder
Thrust
Adapter
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 30 110
Baseline Core, AJ26 Engines, CASTOR 30B 120
Baseline Core, AJ26 Engines, CASTOR 30XL 130
Baseline 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
3
5. 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
5
10. 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
10
11. 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
11
16. Antares Future Manifest
16
Mission Launch Date Launch Vehicle
Configuration
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)
17. 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)
17
The OA-5 Mission Was a Spectacular Success and Has
Returned Antares to Flight Operations!