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The main objective of the Sentinel-3 mission is to measure sea surface topography, sea and land surface temperature, and ocean and land surface colour with high accuracy and reliability to support ocean forecasting systems, environmental monitoring and climate monitoring.

The Sentinel-3 Mission Guide provides a high-level description of the mission objectives, satellite description and ground segment. It also covers an introduction to heritage missions, thematic areas and services, orbit characteristics and coverage, instrument payloads and data products.

The Sentinel-3 mission is jointly operated by ESA and EUMETSAT to deliver operational ocean and land observation services.

  COPERNICUS logo   EUMETSAT logo   ESA logo   SENTINEL-3 logo


For mission planning information, see the Copernicus Mission pages.

The categories are:

Gives a brief description of the heritage missions (ERS, ENVISAT and CryoSat-2) as well as the main thematic areas and services (e.g. ocean, land).

Mission Objectives
Describes primary and secondary objectives of the Sentinel-3 mission.

Satellite Description
Describes the satellite platform and the communication links, as well as the orbit characteristics and the geographical coverage.

Ground Segment
Describes the Flight Operations Segment (FOS), the Payload Data Ground Segment (PDGS).

Observation Scenario
Provides an overview of the Sentinel High Level Observation Plan (HLOP).

Operations ramp-up phases
Reports an overview of the major milestones from the commissioning phase to the Full Operational Capacity.

Instrument Payload
Describes the main instruments of the Sentinel-3 mission: Ocean and Land Colour Instrument (OLCI), Sea and Land Surface Temperature Radiometer (SLSTR), SAR Radar Altimeter (SRAL), MicroWave Radiometer (MWR) and Precise Orbit Determination (POD) instruments.

Data Products
Defines all data products available per instrument:

Copernicus Sentinel-3 infographic

Copernicus Sentinel-3 infographic

25 January 2022

Learn more about the Copernicus Sentinel-3 mission in this infographic, which summarises the many applications it covers and highlights its various achievements

Sentinel-3 infographic

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