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Cakrawarta 1

On September 1997, the Indonesian President renamed the satellite. It was previously called Indostar 1


Designation 25050 / 97071B
Launch date 12 Nov 1997
Country of origin Indonesia
Operator PT Media Citra Indostar
Mission DBS
Geostationary orbit see below
Launch vehicle Ariane V102

Up to 4 small satellites have been ordered: Indostar 2 at 115°E and Indostar 3 at 106°E (or all four satellite colocated at 107.5 and 119°E) The full project (satellite, launch, ground station, etc) is worth $175 million

Originally designed for TV and DAB, the satellite was modified to provide only TV capacity in S-band (this band was selected to face high attenuation caused by the rain).

A power regulator failed resulting in only 80% of eclipse power available. Insurance paid $25 million.


Begin End Position
L: 12 Nov 1997 Aug 2005 107.7°E
Aug 2005 Jun 2012 107.7°E, inclined
Jul 2012   117.5°E, inclined

End of life

Out of service Jun 2012
Cause Possible end of life, drifting West

sat-index articles

Technical data

Lyngsat transponder loading


Prime contractor CTA Inc (now OSC)
Platform STAR
Mass at launch 1385 kg
Mass in orbit 802 kg
Dry mass 643 kg
Solar array  
Stabilization spin stabilized
DC power 3200 W
Design lifetime 10 years

S-band (2520-2670 GHz)

Main transponders
Backup transponders  
Power 70 W
Bandwidth 27 MHz
Coverage Indonesia + northern Australia, Papua New Guinea, Malaysia, southern Philippines, Singapore
EIRP max 47 dBW
Frequencies 2.520-2.670 GHz

Uplink is in X-band (this is the first commercial use of X-band)

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