||PROBA-2 is a follow-up ESA microsatellite technology demonstration mission to the PROBA mission (launch Oct. 21, 2001). The PROBA-2 goals embark on a scientific payload dedicated to sun observations and monitoring (space weather), and innovative platform subsystems with new advanced technologies such as propulsion systems with cold gas generator, Li-ion batteries, stellar compass and reaction wheels, solar array with concentrator, new central processor. The overall PROBA-2 mission includes a major Belgian contribution, on both platform and payload sides, and also on the ground segment part.
In June 2002, ESA released a general AO (Announcement of Opportunity), inviting proposals for the selection of the instrument complement for the PROBA-2 mission.
The technologies and technical concepts envisaged for PROBA-2 include:
Miniaturized attitude measurement sensors to exploit recent technology advances in micro electro-mechanical (MEM) devices, active pixel arrays and folded optics for the development of high performance and compact measurement sensor
Attitude control systems for high spatial resolution, targeting actuator performance, advanced pointing capability and control law design
Propulsion technology for small spacecraft
Integrated data handling and power subsystem, to decrease the spacecraft platform mass and power, and to improve payload resource allocation
Automatic code generation for onboard software.