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THEMATIC AREA

Data

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

Data Description

SPOT-6 and 7 ESA archive

The SPOT-6 and -7 ESA archive is a dataset of SPOT-6 and SPOT-7 products that ESA collected over the years. The dataset regularly grows as ESA c...

Data Description

ERS-1/2 Radar Altimeter REAPER METEO Product - [ERS_ALT_2M]

This is a RA Meteo product containing only the 1 Hz parameters for altimeter (surface range, satellite altitude, wind speed and significant wave...

Data Description

ERS-1/2 Radar Altimeter REAPER Sensor Geophysical Data Record - SGDR [ERS_ALT_2S]

This is a RA Sensor Geophysical Data Record (SDGR) product containing all of the parameters found in the REAPER GDR product (ERS_ALT_2_) with th...

Data Description

ERS-1/2 Radar Altimeter REAPER Geophysical Data Record - GDR [ERS_ALT_2]

This is a RA Geophysical Data Record (GDR) product containing radar range, orbital altitude, wind speed, wave height and water vapour from the A...

News

Discover the latest news on the European Space Agency's Earth Observation activities. Learn all about new data availability and how ESA's missions are performing.

General News

New Earth Online Newsletter

Stay up to date with the latest news in our newsletter.

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General News

Mission continuity

Long-term availability of Earth observation data from a given instrument is crucial to many data users and their research—but just how does it work?

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Operational News

Updated Precise Orbit data (POD) for the full ERS-1 and ERS-2 mission available

The Precise Orbit files (ERS.ORB.POD) for the entire ERS-1 and ERS-2 mission periods have been reprocessed with up-to-date standards.

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Operational News

ERS-1 Scatterometer L2 dataset processed with ASPS v10.04 is available online

The reprocessed dataset together with corresponding ERS-2 data is now available.

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Operational News

Envisat-ERS (A)SAR - Enhanced Dissemination Service

ESA is pleased to announce the release of several new features as part of the ESA On-The-Fly data processing and dissemination service.

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Scientific Highlights

Satellite Radar Altimetry: past and future

Satellite radar altimetry measurements yield a wealth of information that can be used for a wide range of applications.

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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.

ERS
Heritage Missions

ERS

The ERS programme was composed of two missions, ERS-1 and ERS-2, which together observed the Earth for 20 years, from 1991 to 2011.

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SPOT
Third Party Missions

SPOT

The SPOT (from French "Satellite pour l'Observation de la Terre") series of missions has been supplying high-resolution, wide-area optical imagery since 1986.

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Events

Learn about upcoming Earth observation conferences, workshops and training courses that the European Space Agency organise or support. Discover the results of past events, which may provide useful reference or material for your work.

EVENT - Conference

IGARSS 2019

World-class scientists, engineers and educators in geoscience and remote sensing gathered in Yokohama, Japan, for the 39th annual IGARSS symposium.

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EVENT - Conference

Living Planet Symposium 2019

ESA's Living Planet Symposia are amongst the biggest Earth observation conferences in the world. The events see scientists present their latest findings on Earth's environment and climate.

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TOOLS & TOOLBOXES

Find the tools you need to visualise, analyse and process the European Space Agency's Earth observation data.

TOOLS - Analysis

SNAP

SNAP is a common architecture for all Sentinel Toolboxes. Read more

ACTIVITIES

Find the activities you need.

ACTIVITY - Cal/Val activities

UV nadir viewing galleries

Atmospheric chemistry nadir observation from space now spans nearly forty years. The early UVN (UV nadir missions) mainly focused on measuring ozone. 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.

a-positioning-navigation

Heritage Missions

PRARE (ERS-2)

Precise Range And Range-Rate Equipment (PRARE) was a microwave tracking system for the measurement of satellite to ground range and range rate.

a-positioning-navigation

Heritage Missions

LRR (ERS-2)

An optical device for accurate satellite tracking from the ground to support instrument data evaluation

a-spectrometers-radiometers

Heritage Missions

GOME

GOME is a nadir-scanning ultraviolet & visible spectrometer for global monitoring of atmospheric Ozone

a-spectrometers-radiometers

Heritage Missions

ATSR-2

Used for measuring sea-surface temperatures, cloud-top temperatures and vegetation monitoring.

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

Long-term monitoring of the GOME thermal environment - 1995-2002

In this document the analysis of the GOME thermal environment aboard ERS-2 during lifetime was updated to cover the period April 1995 - March 2002, for the pre-disperser prism, the radiator, the four charge amplifiers, the scan unit electronics and motor, the DDHU DC/DC converter and the DDHU Peltier board. Download