Sentinel-5P

Sentinel-5 Precursor (Sentinel-5P) is an Earth observation satellite developed by ESA as part of the Copernicus Programme to close the gap in continuity of observations between Envisat and Sentinel-5. Sentinel-5 Precursor is the first mission of the Copernicus Programme dedicated to monitoring air pollution. Its instrument is an ultraviolet, visible, near, and short-wavelength infrared spectrometer called Tropomi. The Satellite is built on a hexagonal Astrobus L 250 satellite bus equipped with S- and X-band communication antennas, three foldable solar panels generating 1500 watts, and hydrazine thrusters for station-keeping. The satellite operates in an 824 km Sun-synchronous orbit with a Local Time of Ascending Node of 13:30 hours.