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

  • Document - Newsletter

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    16 Dec 2022

    Earth Online Newsletter - 16 December 2022

    This issue of the Earth Online Newsletter covers a selection of the latest news and events from ESA.

  • Document - Product Readme Note

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    13 Dec 2022

    AATSR Level 1B (ENV_AT_1_RBT) Product Notices

    This Readme file contains the Product Notice (PN) information for the AATSR Level 1B products: ENV_AT_1_RBT.

  • Document - Technical Note

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    25 Nov 2022

    AATSR IPF Change Log v4

    AATSR IPF Change Log v4

  • Document - User Guide

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    12 Oct 2022

    User Documentation for (A)ATSR 4th Reprocessing Level 1B Products

    This document provides a guide for users of (A)ATSR 4th reprocessing products, giving easily viewed format details, highlighting differences from previous reprocessed products, noting technical features inherent in the products, and giving notification of remaining Open Issues.User Documentation for (A)ATSR 4th Reprocessing Level 1B Products

  • Document - Newsletter

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    8 July 2022

    Earth-Online-Newsletter-8-July-2022.pdf

    This issue of the Earth Online Newsletter covers a selection of the latest news and events from ESA.

  • Document - General Reference

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    26 May 2022

    Heritage Space Programme interactive brochure

    Learn about ESA's Heritage Space Programme in this interactive brochure.

  • Document - General Reference

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    20 May 2022

    Heritage-Missions-brochure.pdf

    This brochure describes ESA's Heritage Space Programme and includes infographics describing some of the missions in the programme.

  • Document - Newsletter

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    18 Mar 2022

    Earth-Online-Newsletter-18-March-2022.pdf

    This issue of the Earth Online Newsletter covers a selection of the latest news and events from ESA.

  • Document - Newsletter

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    14 Oct 2021

    Earth-Online-Newsletter-Issue-7.pdf

    This is the seventh issue of the Earth Online Newsletter for 2021, containing selected features from recent news.

  • Document - Technical Note

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    28 Sept 2021

    POD_configuration_POEF.pdf

    POD configuration POEF

  • Document - Mission Status Report

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    28 Sept 2021

    CNES_ENVISAT_POE-F_orbits_CLS_validation.pdf

    CNES POD Activities

  • Document - Newsletter

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    29 July 2021

    Earth-Online-Newsletter-Issue-2.pdf

    This is the second issue of the Earth Online Newsletter for 2021, containing selected features from recent news.

  • Document - General Reference

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    11 June 2021

    CEOS-Sustainable-Development-The-Space-Contribution-Paper.pdf

    This Fact Sheet examines the Committee on Earth Observation Satellite's (CEOS) activities in the field of sustainable development through the use of space technology.

  • Document - Product Cal/Val Plan/Report

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    11 June 2021

    CEOS-Working-Group-Calibration-and-Validation.pdf

    This document describes the Committee on Earth Observation Satellite's involvement in Calibration and Validation activities for Earth Observation satellites.

  • Document - Technical Note

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    11 June 2021

    ENVISAT-MERIS-Changes-in-the-Level-1-and-Level-2-products.pdf

    This document provides a precise of the nature of the changes in the Level 1 and Level 2 products for the MERIS instrument on the ENVISAT mission.

  • Document - Product Cal/Val Plan/Report

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    11 June 2021

    ENVISAT-MERIS-Accuracy-of-the-3rd-reprocessing-results.pdf

    This document provides an overview of the Accuracy of the changes made during the 3rd Reprocessing.

  • Document - General Reference

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    11 June 2021

    Coastal-Altimetry-and-CoastAlt.pdf

    This flyer describes the ESA funded CoastAlt project, whose main objective was to contribute to the transition of pulse-limited coastal altimetry toward a mature, pre-operational phase.

  • Document - Product Specifications

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    18 May 2021

    PH_light_2rev0_ESA.pdf

    RA-2 and MWR product information

  • Document - Technical Note

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    11 May 2021

    REVIEW OF THE IMPACT OF ERS-2 PILOTING MODES ON THE SAR DOPPLER STABILITY

    ERS-2 was piloted in yaw-steering mode using three gyroscopes since the beginning of the mission until February 2000, when a new yaw-steering mode using only one gyroscope was implemented. The ERS-2 gyroscopes had experienced several problems during the mission and the new mono-gyro mode (1GP) was intended to ensure the mission continuity even in case of additional failures. In January 2001 a new test piloting mode using no gyroscopes, the Extra-Backup Mode (EBM), was implemented as a first stage of a gyro-less piloting mode. The aim of this challenging mode was to maintain the remaining gyroscopes performance only for those activities absolutely requiring them, such as some orbit manoeuvres. A more accurate version of this yaw-steering zerogyro mode (ZGM) was operationally used since June 2001 and the performance was further improved with the implementation of the Yaw Control Monitoring mode (YCM) at the beginning of 2002. The evolution from the nominal and extremely stable three-gyro piloting mode (3GP) to the YCM has allowed to successfully continuing the ERS-2 operations despite of the gyroscopes failures. Nevertheless, this evolution has significantly affected the stability of the satellite attitude and the SAR Doppler Centroid frequency. The scope of this paper is to provide an overview of the different ERS-2 piloting modes and to assess their impact on the platform attitude, the SAR Doppler stability, the product quality and the applications performance, particularly for interferometry.

  • Document - Product Document

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    11 May 2021

    IDEAS+-VEG-OQC-REP-2742_ASAR_Medium_Resolution_Bulk_Processing_QC_Report_v1.3.pdf

    QC Report for ASAR Medium Resolution Products processed under the DSI Bulk Processing Campaign

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