|Launch mass||94 kilograms (207 lb)|
|Start of mission|
|Launch date||22 October 2001, 04:53UTC|
|Launch site||Sriharikota FLP|
|Perigee||553 kilometres (344 mi)|
|Apogee||677 kilometres (421 mi)|
PROBA (Project for On-Board Autonomy) was a Belgian satellite launched atop an Indian Polar Satellite Launch Vehicle by ISRO in 2001. The satellite was funded through the ESA's MicroSat program. This small (40×60×80 cm; 95 kg) boxlike system, with solar panel collectors on its surface, has remarkable image-making qualities. It hosts two Earth Observation instruments dubbed CHRIS and HRC. It is a hyperspectral system (200 narrow bands) that image at 30 m, plus three in the visible that have 15 m resolution.
The second satellite in the Proba-series, Proba-2 was launched on November 2, 2009, together with the SMOS mission. Further planned satellites in the Proba series are the formation flight Proba-3 and Proba-V (Proba Vegetation). They are on-going developments without defined launch dates.