On Friday, October 13th 2017 11:27:44, Russian “Rockot” booster launched from Baikonur cosmodrome and carried ESA’s Sentinel 5p 820 kg satellite to its preliminary orbit. This is a sixth satellite in European Copernicus program, and the first one in the fleet that will monitor Earth’s atmosphere by taking daily precise measurements of trace gas levels. The collected data will help in monitoring air pollution and assist policy-makers and scientists. Tropomi spectrometer on board the Sentinel 5P will measure levels of gases such as methane, ozone, formaldehyde, carbon monoxide, sulphur and nitrogen dioxide and aerosols. Its unmatched resolution of 7 km x 3, 5 km will allow analysts to distinguish between pollution emitted in large cities and maritime shipping lanes, industrial facilities and oil and gas fields. The satellite will become operative in 6 months, and is planned to be active for seven years. As with all Copernicus satellites, all data will be publicly available for free. Its total cost sums up to $284 millions.
More details available here.