A Common SB4000 Avionics Based Solution for Exomars Carrier and Orbiter
- Paper number
IAC-07-A5.I.-A3.I.B.08
- Author
Mr. Jean-Jacques Juillet, Thales Alenia Space, France
- Coauthor
Mr. Giacinto Gianfiglio, European Space Agency (ESA)/ESTEC, The Netherlands
- Coauthor
Mr. Carlo Cassi, Alcatel Alenia Space Italia, Italy
- Coauthor
Mr. Mario Montana, Alcatel Alenia Space Italia, Italy
- Coauthor
Mr. Antoine Provost-Grellier, Thales Alenia Space, France
- Coauthor
Mr. Hervé Renault, Thales Alenia Space, France
- Coauthor
Mr. Olivier Fratacci, Thales Alenia Space, France
- Year
2007
- Abstract
In the frame of the Aurora Exploration Program, ESA initiated industrial studies for the ExoMars mission. Alcatel Alenia Space-France led consortium was awarded the Phase B1 Carrier Module and Ariane 5/Orbiter Lead and System Design studies under Alcatel Alenia Space Italy mission prime. The primary objective of Aurora is to create, and then implement, a European long-term plan for the robotic and human exploration of the solar system, with Mars, the Moon and the asteroids as the most likely targets. The ExoMars mission, scheduled for a 2013 launch, is the first Aurora mission and is aimed at estab-lishing whether life ever existed or is still present on Mars. This mission will allow exobio-logical analysis of samples collected on Mars surface by a Rover, with the objective to prepare next human exploration missions. The Carrier/Orbiter mission is first to transfer from Earth to Mars the Descent Module Composite (including the Rover) and to release it on the right trajectory to enter into Mars atmosphere. The second part of the mission is to ensure the Rover Data collection and re-lay to Earth. The third part of the mission is to provide new imaging or other kind of scien-tific data from the Orbiter embarked payload, for a minimum lifetime of more than 2 years. The two last points are applicable to Orbiter vehicle only. The Carrier/orbiter modules are not critical in terms of technology, however their devel-opment shall secure the overall schedule. The avionics as a major subsystem, will contribute to raise this challenge. Based on its ex-perience of interplanetary missions and on its leader position in telecommunication space application, AAS-F is able to propose an efficient solution adapted from the Spacebus 4000 avionics, with required performances, and optimum development as well. The SB4000 avionics is based on a robust and advanced performing AOCS, and on an adaptable progressive FDIR concept, which makes extremely low the cases leading to out-ages. These basic design concepts are mandatory for the EXOMARS avionics. The avionics architecture developed for the SB4000 family is very flexible to cope with ad-aptations inherent to platform family. This capability is largely exploited in the frame of the EXOMARS avionics, minimising then the development risks. The paper will focus on the avionics characteristics considering both carrier and orbiter modules, and on the adopted solution based on SB4000 avionics, to raise the schedule challenge.
- Abstract document