ESA Science & Technology - Publication Archive
- perform instrument conceptual design and trades
- prepare a preliminary instrument design including budgets and subsystem designs with required performance
- show science requirements compliance
- define critical design issues requiring further analysis
- assess and analyse programme, risk and costs
Electric propulsion represents one of the most promising technologies for application in future space missions; Hall Effect Thrusters (HET's) and Gridded Ion Engines (GIE) are particularly interesting for their relatively high thrust capability coupled with a specific impulse which is up to one order of magnitude higher than latest generation chemical systems. The knowledge of the plasma plume evolution in the thrusters surrounding space is of fundamental importance, at system design level, for new generation satellites, in order to integrate the propulsive subsystem with the other vehicle subsystems: as known, the use of electro-magnetic thrusters can create compatibility problems, due to the electrically charged particle flow, which can interfere with telecommunication signals and generate erosion and insulation loss for critical satellite surfaces (e.g. solar panels, optical instruments and sensors etc.) A number of Hall thrusters plume models have been developed, present simulation techniques usually implement a Particle In Cell / Monte Carlo approach to a plasma flow considered in a quasi-neutral state, with the possibility of a residual atmosphere (typical of a vacuum chamber test facility). In this paper the 3D plume simulation model developed by Alta will be described, and applied to model the SNEMA PPS® 1350 thruster used on the SMART-1 satellite.
|4||Solving the puzzles of Saturn and Titan|
|6||High ambitions for an outstanding planetary mission|
|8||A long and rich journey|
|12||What lies beneath?|
|20||Vehicles of discovery|
G. Racca, A. Marini and SMART-1 Project team
M. Grande, J. Huovelin, J.L. Josset, H. Keller, A. Nathues, D. Koschny, M. Almeida, J. Zender and SMART-1 Science & Technology team
The status and first results of ESA's SMART-1 mission were presented at the 1st General Assembly of the European Geosciences Union on 26 April 2004. The presentation covered:
- SMART-1 Technology Mission: Solar Electric Propulsion to the Moon
- Payload Technology and Science objectives
- Lunar and planetary science with SMART-1
- Performances, Status and first results data integration
- SMART-1 Contribution to preparing Future Planetary exploration
Contact: Bernard H. Foing, Chief Scientist, ESTEC/SCI-SR, ESA Science Directorate, Bernard.Foingesa.int
A paper originally presented by EADS Astrium at the 54th IAC in Bremen in September 2003.
On 28 January 2003, EADS Astrium officially signed the Venus Express contract with the European Space Agency (ESA) worth 82.4 million Euros for the design and development of the spacecraft. This will be the first European spacecraft to visit the planet Venus. Venus Express is scheduled for launch from the Baikonour Cosmodrome in Kazakhstan in November 2005. It will be launched by a Soyuz-Fregat rocket and put immediately into its transfer orbit to Venus.