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Seventh Sentinel Satellite launched for Copernicus

on 25 April 2018

The second Sentinel-3 satellite, Copernicus Sentinel-3B, was launched today, joining its identical twin Sentinel-3A in orbit. This pairing of satellites increases coverage and data delivery for the European Union’s Copernicus environment programme.

The 1150 kg Sentinel-3B satellite was carried into orbit on a Rockot launcher from Plesetsk, Russia, at 17:57 GMT (19:57 CEST; 21:57 local time) on 25 April. Rockot’s upper stage delivered Sentinel-3B into its planned orbit. Just 92 minutes after liftoff, Sentinel-3B sent its first signals to the Kiruna station in Sweden. 

During the next period, controllers will check that all the satellite’s systems are working and begin calibrating the instruments to commission the satellite. The mission is expected to begin routine operations after five months.

With this launch, the first set of Sentinel missions for the European Union’s Copernicus environmental monitoring network are in orbit, carrying a range of technologies to monitor Earth’s land, oceans and atmosphere.

As an ESA Member State and a European Union country, Romania contributes to and benefits from the Copernicus programme. The Romanian Space Agency (ROSA) frequently organises activities in Romania to stimulate participation in Earth Observation (EO).

More details about the launch are available here.

Image credit: ESA