Europe to the Moon: Smart-1 Final Preparation

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Scientific paper

The development phase of SMART-1, the first ESA Small Mission for Advance Research and Technology is on going, targeting launch in February 2003. five elements: ground segment, electric propulsion, spacecraft, payload and launch services. The basic architecture of the ground segment has been frozen. The Mission Operation Centre (MOC) is based in ESOC, Darmstadt, while the Science and Technology Operation Centre (STOC) is based at ESTEC, Noordwijk. The preparation is ongoing and will be nearly ready by the time of the Congress. The electric propulsion subsystem, essential to the mission, has completed the acceptance tests and is presently being integrated into the spacecraft. The lifetime qualification is on-going and will be completed only towards the end of the year 2002. The spacecraft design was frozen at the critical design review at the end of 2001 and is now in advanced status of subsystem qualification and system electrical testing. The flight model integration is also under way. The system tests will take place during the summer. In addition to a complete campaign of environmental tests, a dedicated end-to-end test to verify the correct functioning of the electric propulsion system will take place in a specially equipped vacuum test chamber at ESTEC. The payload comprises seven instruments addressing technological aspects related to the electric propulsion and plasma environment (EPDP, SPEDE), spacecraft deep space communication (KaTE), lunar science (D-CIXS, AMIE, SIR) and astronomy and solar observations (XSM). All instruments have been electrically tested on the spacecraft. Instrument ground calibrations are ongoing and they will be delivered for integration on the spacecraft in the spring 2002. SMART-1 will be launched by an Ariane 5 vehicle in a shared flight with a telecommunication satellite into a standard Geostationary transfer orbit. The launch is foreseen to take place in February 2003.

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