Optus D1

Prime contractor	Orbital Sciences Corporation (OSC)
Operator	Optus Networks, Pty.
Platform	Star-2.4 Bus
Mass at launch	2300 kg
Dry Mass	1006 kg
Basic shape
Dimension (m)	3.9 height
Stabilization	3-axis
Solar array	2 deployable arrays, 17m deployed
Propulsion	IHI BT-4
Equipment	24 (+8) Ku-band transponders
DC power	4800 W
Design lifetime	15 yrs

EIRP	Australia: 44-52 dBW
	New Zealand: 51-57 dBW
	Australia/New Zealand combined: 43-55 dBW
G/T	Australia: 0 to 5 dB/K
	New Zealand: 1 to 10 dB/K
	Australia/New Zealand combined: -2 to 5 dB/K
SFD	-78 to -98 dBW/m²
Telemetry	Ku-Band
Command	Ku-Band

Optus D1 satellite was the 8th satellite construction and launch programme conducted by Optus.
Optus D1 provides Ku FSS-band coverage for Australia and New Zealand for fixed communications in VSAT services, digital TV services in Australia and direct-to-home broadcast services in New Zealand.
Optus D1 is the first spacecraft to fully ultilise the design capacity of the STAR-2 bus and is also the first STAR-2 bus to use Lithium Ion batteries.
Optus D1 will replaced Optus B1 and will also provide capacity for growth to meet business demands and increase the resilience of the Optus satellite network for mission critical applications.

Launch cancel Kourou.

Headquarter cancel Paris.

Credit covers: J.VdDr.

Ref.: #7, #238, #415 - update: 14.01.20