Eutelsat 2 FM4 Spacecraft End of Life Operations and Propulsion Passivation

Details Eutelsat 2 FM4 Spacecraft End of Life Operations and Propulsion Passivation Eutelsat 2 FM4 Spacecraft End of Life Operations and Propulsion Passivation

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004esasp.555e..10a&link_type=abstract

Proceedings of the 4th International Spacecraft Propulsion Conference (ESA SP-555). 2-9 June, 2004, Chia Laguna (Cagliari), Sard

Computer Science

Scientific paper

Eutelsat 2 FM4 is a Spacebus 2000 Spacecraft, which was launched in 1992 with a projected lifetime of 7 years. After 11 years of successful service, EUTELSAT decided to graveyard the spacecraft and passivate the propulsion subsystem. A reorbitation to +300 km with respect to GEO was performed by EUTELSAT in Paris, a complete propellant tank depressurisation was achieved through different maneuvers. After a brief overview of the two main systems involved, propulsion and AOCS, this paper presents the chronology of the operations , focusing on AOCS/UPS subsystem behaviors. Main conclusions and recommendations issued from this experience will also be presented.

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