Eutelsat W3B

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General

Designation	37206 / 10056A
Launch date	28 Oct 2010
Country of origin	Europe
Mission	Telecommunications
Geostationary orbit	16°E
Launch vehicle	Ariane V197

Was to be delivered in-orbit. Declared a total loss. Was fully insured.

Was planned to be used at 7°E, but the failure of Eutelsat W2M caused it to be reaffected to 16°E. The 7°E slot had been at the centre of a dispute with SES over the use of a further Eutelsat position at 4°E and the established SES-Sirius position of 5°E.

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End of life

Out of service	Oct 2010
Cause	Leak in the propulsion system: a pipe was not properly aligned and did not withstand the stress of the launch

sat-index articles

Technical data

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EIRP coverage (dBW)

Europe A
South East Africa
Europe B
Europe C
Africa

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Specifications

Prime contractor	Thales Alenia Space
Platform	Spacebus-4000C3
Mass at launch	5370 kg
Dry mass
Dimension	5.8 x 2.0 x 2.2 m (34 m deployed)
Solar array
Stabilization	3-axis
DC power	EOL: 12 kW
Design lifetime	15 years

Has 3 deployable and 2 fixed beams.

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Ku-band

Main transponders	53
Backup transponders
Power
Bandwidth
Coverage	Wide coverage of Europe, Middle East and Northern Africa Europe and Turkey with high power Sub-saharian Africa Specific islands of the Indian Ocean
EIRP max
G/T max
Polarization
Frequencies	downlink: 10.7-11.7 & 12.5-12.75 GHz

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Ka-band

Main transponders	3
Backup transponders
Power
Bandwidth
Coverage
EIRP max
Polarization
Frequencies	Uplink: Downlink: 21.4-22.0 GHz

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