Earth Observation Mission News
Sentinel-5P satellite fuelled
25 September 2017
Engineers have been at Russia's Plesetsk launch site for a month now, ticking off the jobs on the 'to do' list so that the Copernicus Sentinel-5P satellite is fit and ready for liftoff on 13 October. With the satellite now fuelled, the team has passed another milestone.
Fuelling a satellite is a particularly delicate operation. Hydrazine is extremely toxic so only a few specialists wearing 'scape' suits remain in the cleanroom.
Once filled with 82 kg of hydrazine, the satellite was weighed. Permission to fuel came after the Rockot launcher had been tested.
This involved the booster and the 'ascent unit' minus the satellite being taken to the launch pad and assembled.
Image credit: ESA - Fuelling a satellite is a particularly hazardous operation, so specialists have to wear these suits and the cleanroom is cleared of non-essential personnel.