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News - Data Release 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.
Document - General Reference
The Nine Candidate Earth Explorer Missions - Topography Mission
This report for assessment addresses the Topography mission when it was selected with other nine Earth Explorer missions as a potential candidate for Phase A study.
Document - General Reference
SMOS-ESAs-Water-Mission-Fact-sheet.pdf
This document provided a series of information on the SMOS mission.
Document - General Reference
Sentinel-1-The-Radar-Mission-for-GMES-Land-and-Sea-Services.pdf
This article is extracted from ESA Bulletin Nr. 131.
Document - General Reference
Remote-Sensing-and-marine-ecology.pdf
This volume collects the lecture notes of the training course on Marine Remote Sensing and its applications, held on 15-26 June 1998 at ESA ESRIN, Frascati, Italy. The lectures were held in italian: the book is available in italian only.
Document - Proceedings
PolInSAR-2007-Proceedings-of-the-3rd-International-Workshop-on-Science-and-Applications-of-SAR-Polarimetry-and-Polarimetric-Interferometry.pdf
Proceedings of PolInSAR 2007 held in Frascati, Italy on from 22-26 January 2007.
Document - General Reference
Monitoring-Marine-Life-from-Space-Envisat-Experience-in-Chile.pdf
This article was published in the ESA Bulletin Nr. 126 and describes the use of satellite data for monitoring the environmental conditions of coastal waters and the health of southern oceans.
Document - General Reference
Medspiration-A-Precursor-to-the-GMES-Marine-Core-Service-Sea-Surface-Thematic.pdf
This is an article extracted from the ESA Bulletin Nr. 132.
News - Spotlight on EO community
Introducing Mirko Albani
In this short introduction, ESA's Heritage Missions Programme Manager describes what he likes most about ESA's long term archive of satellite mission data and his role in the programme.
Document - General Reference
Highlights-of-the-ERS-Envisat-Symposium.pdf
This article was published in the ESA Bulletin Nr. 105 and providesdetails on the achievements of the ESA's Earth ObservationProgramme following the Gothenburg's symposium.
Tools - Apps
Heritage Missions app for Android
Download the Heritage Missions application to discover what the missions were about, how it worked and what the elements of the space and ground segment that make these missions unique.
Document - General Reference
Healing-the-Earth-Earth-Observation-Supporting-International-Environmental Conventions.pdf
This article is extracted from ESA Bulletin Nr. 128.
Document - General Reference
GLOBCOVER-The-most-detailed-portrait-of-Earth.pdf
This is an article extracted from the ESA Bulletin Nr. 136.
Document - General Reference
Globcolour-A-Precursor-to-the-GMES-Marine-Core-Service-Ocean-Colour-Thematic-Assembly-Centre.pdf
This article is extracted from ESA Bulletin Nr. 132.
Document - General Reference
ESA-Bulletin-Nr-106-Envisat-Special-Issue.pdf
This issue of the ESA Bulletin is fully dedicated to the ENVISAT mission.
Data - Fast Registration with immediate access (Open)
ERS PRARE Precise Orbit Product (ERS.ORB.POD/ERS.ORB/PRC)
The precise orbit results from a data reduction process in which all available tracking data (Single-Lens Reflex, radar altimeter crossovers, PRARE range and Doppler data) and most accurate correction, transformation and dynamical models are taken into account and in which high level numerical procedures are applied. These orbits are "optimal" achievable representations of the real orbital motion under the circumstances of tracking situation and the "state of the art" model situation. The precise orbit product for the ERS satellites are the satellite ephemeris (position and velocity vector) including time tag, given in a well-defined reference frame, together with the nominal satellite attitude information and a radial orbit correction. Several orbit solutions are currently distributed: A new set of ORB POD (Precise Orbit Determination - REAPER v2) computed with the most updated model standards for the complete ERS-1 and ERS-2 mission. A previous set of ORB POD (REAPER v1) data already available on the ESA dissemination site since 2014, covering the ERS-1 full mission and the ERS-2 mission up to July 2003. ORB PRC which is the original Precise Orbit dataset computed during the ERS mission operations for ERS-1 and ERS-2. In the new POD dataset (REAPER v2) for the ERS-1 and ERS-2 missions, two different orbit solutions are provided together with the combined solution to be used for processing of the radar altimeter measurements and the determination of geodetic/geophysical products: those computed by DEOS (Delft Institute of Earth Observation and Space Systems), and those generated by ESOC (European Space Operations Centre) using different software (GEODYN and NAPEOS respectively). Careful evaluation of the various solutions of REAPER v2 has shown that the DEOS solution for both ERS-1 and ERS-2 has the best performance and is recommended to be used as reference. See the ERS Orbit Validation Report. For the previous version of the POD data set (REAPER v1), with ERS-2 mission data only up to 2003, three different orbit solutions together with the combined solution are available. These precise orbits for ERS-1 and ERS-2 have been computed at DEOS, ESOC, and GFZ (Deutschen GeoForschungsZentrums) using different software and different altimeter databases. Combined solutions have been created using three individual solutions for each satellite. All orbits were derived using consistent models in the same LPOD2005 terrestrial reference frame. These new orbit solutions show notable improvement with respect to DGME04 orbits (Scharroo and Visser, 1998). Thus, RMS crossover differences of new orbits improved by 4-9 mm. Careful evaluation of the various solutions has shown that the combined solution for both ERS-1 and ERS-2 has the best performance. All POD orbit files (REAPER v1/v2) are available in SP3c format.
Document - General Reference
Envisat-Opportunities-for-Science-and-Applications.pdf
This document presents an overview of the opportunities for exploitation of Envisat data products and it is hoped that it will serve the purpose of encouraging scientists and application developers to plan for the use of Envisat data in their work.
Document - General Reference
Envisat-Mission-and-System-Summary.pdf
This document provides a description of the mission objectives, the underlying system design concepts, status of the design, and developments of the system elements.
Document - General Reference
Envisat-Europes-Earth-Observation-Mission-for-the-new-Millennium.pdf
This issue of the Earth Observation Quarterly is fully dedicated to the ENVISAT mission. The production of this periodical is now suspended, but paper copies are still available for distribution.
Document - General Reference
Envisat-Caring-for-the-Earth.pdf
This document provides a description on the overall development and verification of the mission, its objectives, the payload and applications, the ground segment.