Active filters:
Clear filters
THEMATIC AREA
INSTRUMENT TYPE

Data

Discover and download the Earth observation data you need from the broad catalogue of missions the European Space Agency operate and support.

other

EO-SSO registration

Learn how to register an EO-SSO account, which is required to access some data and submit proposals for data.

other

Data registration and proposals profile

Access your profile to see your requested data products or registrations and proposals you have submitted. An active EO-SSO account is required.

Missions

Explore the European Space Agency's Earth Observation satellite missions. Learn all about ESA's dedicated Earth Explorers or collaborations with other agencies through the Third Party Missions programme.

Swarm
earth explorers

Swarm

Swarm is dedicated to creating a highly detailed survey of the Earth’s geomagnetic field and its temporal evolution as well as the electric field in the atmosphere using a constellation of three identical satellites.

Read more
Envisat
heritage missions

Envisat

Envisat was ESA's successor to ERS. Envisat carried ten instruments aboard for a wide range of Earth observing fields. The mission was operational from 2002 to 2012.

Read more

INSTRUMENTS

Explore the many instruments the European Space Agency use to observe the Earth. ESA offer data from a wide range of optical, radar, atmospheric, altimetric and gravimetric instrumentation.

p-magnetic-field-electric-field-instruments

ACC (Swarm)

The Accelerometer measures the Swarm satellite’s non-gravitational acceleration in its respective orbit.

OTHER RESOURCES

Browse through mission documentation and reports, and learn more about European Space Agency Earth Observation projects and opportunities.

DOCUMENT - Technical Note

1 Mar 2019

GMES Sentinel-3 - Mission Requirements Document

GMES Sentinel-3 : Mission Requirements Document The scope of thisdocument is to outline the objectives and from it the derivedscientific and mission requirements of a first GMES Sentinel-3mission planned for launch in the 2011-2012 timeframe. This MissionRequirements Document is intended to provide guidelines for thetechnical implementation of the mission. Download