PROBA


PROBA, renamed PROBA-1, is a Belgian satellite launched atop an Indian Polar Satellite Launch Vehicle by ISRO on. The satellite was funded through the ESA's MicroSat program. This small 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 that image at 30 m, plus three in the visible that have 15 m resolution.
With an initial lifetime of 1 to 2 years, the satellite celebrated its 16th year of operations in 2017. On, it surpassed ERS-2 as ESA's longest operated Earth observation mission of all time.

Series of satellites

PROBA is also the name of the series of satellites starting with PROBA-1. The name is also used to refer to the bus of the satellites.
The second satellite in the PROBA series, PROBA-2, was launched on together with the SMOS satellite.
The third satellite to be launched was PROBA-V, on.
Further planned satellites in the PROBA series include the formation flying demonstration mission PROBA-3 and limb sounder ALTIUS.