Proba-3 is ESA’s – and the world’s – first precision formation flying mission. A pair of satellites will fly together maintaining a fixed configuration as a ‘large rigid structure’ in space to prove formation flying technologies.
The mission will demonstrate formation flying in the context of a large-scale science experiment. The paired satellites will together form a 150-m long solar coronagraph to study the Sun’s faint corona closer to the solar rim than has ever before been achieved. Beside its scientific interest, the experiment will be a perfect instrument to measure the achievement of the precise positioning of the two spacecraft.
|Proba-3 facts and figures|
|Launch date:||Late 2020|
|Mass:||Coronagraph spacecraft 340 kg; Occulter spacecraft 200 kg|
|Orbit:||High Earth orbit, 19.7 hours orbital period, 60 530 km apogee, 600 km perigee|
|Ground station:||Redu, Belgium|