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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.

For mission planning information, see the Copernicus Mission pages.

The categories are:

Overview
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).

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:

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Sentinel satellites observe lignite mine landslide

23 June 2017

Identifying landslides rapidly and precisely enables a better understanding of landslide triggering conditions. The Copernicus Sentinel-1 and -2 missions can be used to provide such information in a timely fashion, and this can help improve maps that show which areas are susceptible to landslides, therefore contributing to risk management.

Sentinel-3A data unavailability

22 June 2017

Due to a SRAL Digital Elevation Mode EEPROM patching operations, SRAL mission data was unavailable during the following period:

22 June 2017 from 08:48:42 to 08:54:08 (Duration 00:05:26).