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Third Sentinel satellite launched for Copernicus

16 February 2016

The third ESA-developed satellite carrying four Earth-observing instruments was launched today, ready to provide a ‘bigger picture' for Europe's Copernicus environment programme.

The 1150 kg Sentinel-3A satellite was carried into orbit on a Rockot launcher from Plesetsk, Russia, at 17:57 GMT (18:57 CET; 20:57 local time) on 16 February.

After a first burn starting about five minutes after liftoff and a second about 70 min later, Rockot's upper stage delivered Sentinel-3A into its planned orbit, 815 km above Earth. The satellite separated 79 min into the flight.

The first signal from Sentinel-3A was received after 92 min by the Kiruna station in Sweden. Telemetry links and attitude control were then established by controllers at ESA's ESOC operations centre in Darmstadt, Germany, allowing them to monitor the health of the satellite.

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