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Preparing for Liftoff

Sentinel-2B in orbit

7 Mar 2017, 04:24 UTC
Sentinel-2B in orbit
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The ESA-developed Sentinel-2B satellite was launched today, doubling the coverage of high-resolution optical imaging in the Sentinel-2 mission for the European Union Copernicus environmental monitoring system.

The 1.1 tonne satellite was carried into orbit on a Vega rocket from Europe’s Spaceport in Kourou, French Guiana at 01:49 GMT on 7 March (02:49 CET; 22:49 local time, 6 March).
The first stage separated 1 min 55 sec after liftoff, followed by the second stage and fairing at 3 min 39 sec and 3 min 56 sec, respectively, and the third stage at 6 min 32 sec.
After two more ignitions, Vega’s upper stage delivered Sentinel-2B into the targeted Sun-synchronous orbit. The satellite separated from the stage 57 min 57 sec into the flight.
Telemetry links and attitude control were then established by controllers at ESA’s operations centre in Darmstadt, Germany, allowing activation of Sentinel’s systems to begin. The satellite’s solar panel has already been deployed.
After this first ‘launch and early orbit’ phase, which typically lasts three days, controllers will begin checking and calibrating the instruments to commission the satellite. The mission is expected to begin operations in three to four months.
The optical imaging Sentinel-2 mission is based on a ...

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