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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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OpenHub maintenance on 23 August 2017

22 August 2017

A maintenance activity on the Open Access Hub service, including API Hub, is scheduled on Wednesday, 23 August 2017 from 07:00 UTC to 16:00 UTC.

New portal for EVDC

22 August 2017

The ESA Atmospheric Validation Data Center (EVDC) has been migrated to a new portal at evdc.esa.int with upgraded functionalities and new tools. The portal offers access to both Cal/Val data and Satellite products for specific missions. The user community is invited to exploit these new features and to contact the EVDC team (nadirteam@nilu.no) for any further information.