Optus d1 and d2 – Orbital Optus D2 User Manual
Page 2
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©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
Specifications
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 reflectors
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 reflectors
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.