Owner manual

Orbital Sciences Corporation
45101 Warp Drive
•
Dulles, Virginia 20166
•
www.orbital.com
©2014 Orbital Sciences Corporation FS001_04_2998
Optus D1 and D2
Mission Partners
Optus of Australia
A leader in providing integrated communications in
Australia
Orbital Sciences Corporation
Prime contractor for three Optus Ku-band satellites
Arianespace
Launch provider
Specications
Optus D1
Spacecraft
Launch Mass: 2,300 kg (5,060 lb.)
Solar Arrays: Three panels per array, UTJ Gallium Arsenide cells
Stabilization: 3-axis stabilized; zero momentum system
Propulsion: Liquid bi-propellant transfer orbit system;
monopropellant (hydrazine) on-orbit system
Batteries: Two 4750 W-Hr capacity Li-Ion batteries (BOL)
Mission Life: 15+ years
Orbit: 160° East Longitude
Payload
Ku-band
Repeater: 24 active transponders with 20-for-16 150 W TWTAs;
10-for-8 44 W TWTAs
TWTA Power: 3.8 kW
Antenna: Two 2.3 m deployable dual-shell grid shaped reectors
Launch
Launch Vehicle: Ariane 5
Site: Kourou, French Guiana
Date: October 13, 2006
Optus D2
Spacecraft
Launch Mass: 2,375 kg (5,225 lb.)
Solar Arrays: Four panels per array, UTJ Gallium Arsenide cells
Stabilization: 3-axis stabilized; zero momentum system
Propulsion: Liquid bi-propellant transfer orbit system;
monopropellant (hydrazine) on-orbit system
Batteries: Two 4750 W-Hr capacity Li-Ion batteries (BOL)
Mission Life: 15+ years
Orbit: 152° East Longitude
Payload
Ku-band
Repeater: 24 active transponders with 20-for-16 125 W TWTAs;
10-for-8 44 W TWTAs
TWTA Power: 4.0 kW
Antenna: Two 2.3 m deployable dual-shell grid shaped reectors
Launch
Launch Vehicle: Ariane 5
Site: Kourou, French Guiana
Date: October 5, 2007
Optus D1 was launched aboard
an Ariane 5 rocket in 2006.
Optus D2 was launched aboard
an Ariane 5 rocket in 2007.