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    • MYRIADE CNES Small Satellites Programme. Performances, Missions, Tool for Education and Cooperation

    Paper number

    IAC-06-B5.1.01

    Author

    Mr. Bernard Tatry, Centre National d'Etudes Spatiales (CNES), France

    Year

    2006

    Abstract
    Paper Purpose :
The paper will present CNES (french space agency) MYRIADE small satellites Line of Product 
in house development, decided as an answer to several needs expressed by scientific, application or 
technological missions proposals. In orbit and in development missions will be described. 
In addition, despite the small satellite project size, it will be shown that the product is adapted to technical 
or technological innovations, to international cooperation and to education or training.

Paper content:
The MYRIADE small satellite Line of Product development started in 2000. The development was 
oriented towards a small satellite (around 120/130 kg) able to cope with a maximum of scientific, technological, … payloads (around 50/60 kg), to be launched on low earth as well as GTO orbits, at low cost, and  by a maximum number of launchers. The multi-missions ground segment, which can operate a maximum of five missions at the same time, has also been designed and developed with the same guidelines.
The paper will describe shortly the MYRIADE system, its concept and performances.
The scientific in flight DEMETER and PARASOL missions will be presented, with main results obtained.
Other MYRIADE missions, either in flight (french Defense Agency) or in development (PICARD, MICROSCOPE, …) will be briefly presented.
Overall gained experience and difficulties encountered (during the bus and ground segment as well as during the scientific payload development) will be listed and discussed.
Results and benefits will be stated, as well as some overall recurrent costs figures (for ground segment, satellites, payloads, …).
Finally, It will be discussed the potential adequation for such system to be at the service of development countries:  MYRIADE is a small satellite Line of Product programme. It has been designed to offer good performances at low recurring cost, short development schedule, numerous and low cost launch opportunities. 
Dedicated missions using MYRIADE small satellite system can be developed and used, presenting high interest for developing countries (Mediterranean, African, …). For example, Sun Synchronous Orbits provide frequent access (twice a day) to download payload data (earth observation, communications, …), with a high data rate (from 1 Gb/day of data can be collected with one S band ground station to more than 
20 Gb/day of data with one X band ground station). 
Different types of cooperation with CNES can be envisaged, either for payload development and exploitation, or for participation to satellite adaptations/improvements/development. These cooperations can give opportunity of training to young engineers or scientists.

Conclusion:
It has been described and shown that the MYRIADE small satellite programme, based on recurrent platform (able to receive several types of payloads), is a solution that could satisfy developing countries needs. For these countries, cooperation is a low cost way to set up small satellite programmes with minimum schedule and risk, but with good performances.
    Abstract document

    IAC-06-B5.1.01.pdf

    Manuscript document

    IAC-06-B5.1.01.pdf (🔒 authorized access only).

    To get the manuscript, please contact IAF Secretariat.