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ESA  is developing  free open source toolboxes for the scientific exploitation of Earth Observation missions under the the Scientific Exploitation of Operational Missions (SEOM)  programme element.  STEP is the ESA community platform for accessing the software and its documentation, communicating with the developers, dialoguing within the science community, promoting results and achievements as well as providing tutorials and material for training scientists using the Toolboxes.

The ESA toolboxes support the scientific exploitation for the ERS-ENVISAT missions, the Sentinels 1/2/3 missions and a range of National and Third Party missions. The three toolboxes are called respectively Sentinel 1, 2 and 3 Toolboxes and  share a common architecture called  SNAP. They  contain some functionalities of historical toolboxes such as BEAM, NEST and Orfeo Toolbox that were developed over the last years.


features start_using documentation features
SNAP Features Download Tutorials Community
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Documentation Developers Gallery Blog


The following results have been obtained thanks to the Sentinel Toolboxes :

Latest News

SNAP 6.0 released

The SNAP development team is pleased to announce a new SNAP release. The different installers for the supported platforms can be downloaded. Besides bug fixes and improvements, several new features are waiting for you. For example SNAP Improvements to the GPT memory configuration Progress is now provided on the command line Problem of keyboard stops […]

New release of SNAPHU 1.4.2 is available

SNAPHU is releasing the new version 1.4.2 available to be downloaded from here. The news of this version is the provide of the installer file. Two-dimensional phase unwrapping is the process of recovering unambiguous phase data from a 2-D array of phase values known only modulo 2pi rad. SNAPHU is an implementation of the Statistical-cost, […]

3rd EO Open Science Conference, 25–28 September 2017

Dear users, The European Space Agency (ESA) is organizing the 3d consultation meeting of EO Open Science in ESRIN (Frascati, Italy) on 25–28 September 2017 to explore new challenges and opportunities for EO research created by the rapid advances in Information and Communications Technologies (ICT). This includes open tools and software, data-intensive science, virtual research […]

7th Advanced Training Course on Land Remote Sensing, 4-9 September 2017

As part of the Scientific Exploitation of Operational Missions (SEOM) programme element, the European Space Agency (ESA) organised an Advanced Land Training Course devoted to train the next generation of Earth Observation (EO) scientists to exploit data from ESA and operational EO missions (e.g. the Sentinels) for science and applications development. A total of 78 […]

New release of Sen2Three 1.1.0 is available

Sen2Three is releasing the new version 1.1.0 available to be downloaded from here. Changes of release 1.1: Compatibility with PSD version 14.2 and Sentinel 2B products Sen2Three supports now the “safe compact” format which was introduced with PSD version 14.2 in parallel to the safe standard format as it was used up to PSD version […]