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Galaxy 11

Galaxy 11 [Boeing BSS]

Galaxy 11 is a large geostationary communications satellute owned by Intelsat.

It was the first Boeing BSS-702 satellite. It was ordered in May 1997 and was successfully launched in December 1999 on an Ariane-44L H10-3 rocket from Kourou, French Guiana. Galaxy XI has a payload of 64 active transponders; 24 operate in C-band and 40 operate in Ku-band. The spacecraft was designed for an end-of-life power of more than 10 kW. The satellite provides service to North America and Brazil.

Galaxy 11 suffers from a generic failure of the early BSS-702 model: the fogging of the concentrator mirrors on the solar arrays leads to reduced available power.

In September 2022 Galaxy 11 suffered a fragmentation event. At least 5 pieces of debris were tracked.

Nation: USA
Type / Application: Communication
Operator: PanAmSat
Contractors: Boeing
Equipment: 64 active transponders (24 C-band, 40 Ku-band)
Configuration: BSS-702
Propulsion: R-4D, 4 × XIPS-25 Ion engines
Power: 2 deployable solar arrays, batteries
Lifetime: 15 years
Mass: 4477 kg
Orbit: GEO
Satellite COSPAR Date LS Launch Vehicle Remarks
Galaxy 11 1999-071A 22.12.1999 Ko ELA-2 Ariane-44L H10-3


Further Galaxy missions:

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