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Sentinel 1A



Sentinel-1 is a two satellite constellation with the prime objectives of Land and Ocean monitoring. The goal of the mission is to provide C-Band SAR data continuity following the retirement of ERS-2 and the end of the Envisat mission.

To accomplish this, the satellites will carry a C-SAR sensor, which offers medium and high resolution imaging in all weather conditions. The C-SAR is capable of obtaining night imagery and detecting small movement on the ground, which makes it useful for land and sea monitoring.

Alternate Names

  • 39634
  • Sentinel1A

Facts in Brief

Launch Date: 2014-04-03
Launch Vehicle: Soyuz
Launch Site: Kourou, French Guiana
Mass: 2280 kg

Funding Agency

  • European Space Agency (Italy)


  • Earth Science

Additional Information

Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office

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