The Sentinel-1 mission is a polar-orbiting satellite system for the continuation of Synthetic Aperture Radar (SAR) operational applications.
Sentinel-1 is a C-band imaging radar mission to provide an all-weather day-and-night supply of imagery for Copernicus user services. The first of the dual Sentinel-1 satellites, -1A, was launched on 3 April 2014 and it will be followed by the second satellite a few years later.
Dedicated to the Copernicus initiative, Sentinel-1 will ensure the continuity of C-band SAR data, building on ESA’s and Canada’s heritage SAR systems on ERS-1, ERS-2, Envisat and Radarsat.
The Sentinel-1 Mission Operations Centre (MOC) is located at ESA's ESOC establishment in Darmstadt, Germany.
|ROLE||Earth observation - all-weather day-and-night radar imagery|
|LAUNCH DATE||Sentinel-1A: 3 April 2014 | Sentinel-1B - 2016 timeframe|
|LAUNCH MASS||2300 kg each (two satellites)|
|ORBIT||Near-polar, Sun-synchronous, about 690km|
|PERIOD||12-day repeat cycle; 175 orbits/cycle|
|NOMINAL MISSION||7 years; may be extended|
|+ Imaging global landmasses, coastal zones and shipping routes at high resolution +|