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Eutelsat 5 West B is a geostationary communications satellite. It is owned by European satellite communications company Eutelsat. It launched on October 9, 2019, at 10:17 UTC on a Proton-M rocket from Baikonur Cosmodrome in Kazakhstan.[7] The satellite was built by Northrop Grumman and Airbus Defence and Space and has an expected operational life of more than 15 years. Situated at 5° west, it broadcasts satellite television, radio and other digital data. It was scheduled to enter operational service at the end of 2019, but deployment difficulties delayed service.

Eutelsat 5 West B

Mission type	Communications
Operator	Eutelsat
COSPAR ID	2019-067A[1]
SATCAT no.	44624
Website	www.eutelsat.com/en/satellites/eutelsat-5-west.html
Mission duration	more than 15 years (anticipated)[2]
Spacecraft properties
Bus	GEOStar-2e [3]
Manufacturer	Northrop Grumman Innovation Systems (NGIS) for Satellite bus and Airbus Defence and Space for Payload[4]
Launch mass	2,740 kilograms (6,040 lb) [5] or 2,864 kilograms (6,314 lb) [6]
Start of mission
Launch date	9 October 2019, 10:17 (2019-10-09UTC10:17Z) UTC
Rocket	Proton/Briz-M
Launch site	Baikonur Cosmodrome
Orbital parameters
Reference system	Geocentric
Regime	Geostationary
Transponders
Band	35 Ku
Coverage area	Europe, North Africa

Problems

On 24 October 2019 Eutelsat released a statement saying the company was investigating an incident on one of the bird's two solar arrays.[8]

On 17 January 2020 Eutelsat issued a statement saying that one of the two arrays was unusable, and the resulting power shortage meant that the satellite could operate at only 45% capacity. The satellite was expected to enter service in late January 2020. The satellite was planned to replace the Eutelsat 5 West A. However, due to the power shortage, Eutelsat 5 West A would remain operational for longer than originally planned in a fuel-saving inclined orbit. This extension is one part of the mitigation activities. Eutelsat 5 West B's problems will cost Eutelsat several million euros. Eutelsat had not decided (as of January 17 the size of the ensuing insurance claim.[9]

The European GNSS Agency's GEO-3, a hosted payload of the Eutelsat West B, was not affected by the power loss and is expected to function normally. It entered service on February 14, 2020.[10]

References

На других языках

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[de] Eutelsat 5 West B

Eutelsat 5 West B ist ein kommerzieller Kommunikationssatellit des in Luxemburg ansässigen Satellitenbetreibers Eutelsat.

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- [en] Eutelsat 5 West B

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[ru] Eutelsat 5 West B

Eutelsat 5 West B — спутник связи, который заменит работающий на орбите спутник Eutelsat 5 West A. Планируется разместить в точке стояния 5° з. д.

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