The European Space Software Repository (ESSR) is an ESA informational web portal created to promote reuse of Software - including Open Source Software (OSS) - and to provide all parties involved in the European Space software development (in particular SMEs) with access to results of previous investments.
Please click here to register and get full access to the ESSR.
Only a limited number of projects is visible to the non-registered users.
Registration is available for everyone residing in an ESA member state.

available projects

Independent Software Verification and Validation Handbook

This project is used to distribute the new ISVV Handbook to the industry. It also contains relevant supporting documentation for ISVV activities.  Independent Sof...

Updated on: 09/01/2023
Created on: 09/01/2023
LibmCS - Mathematical library for critical systems

LibmCS Mathematical Library and Qualification Data Package Mathematical libraries are used in nearly any Flight Software and in particular in the AOCS/GNC and scie...

Updated on: 09/12/2022
Created on: 05/12/2022
Version Control System: git
Owner: GTD
WhiteDwarf 2.0

Description Source codes of cross-validated implementations of several CCSDS compressors standards: - 121.0-B-3 encoder & decoder. - 122.0-B-2 encoder & ...

Updated on: 23/09/2022
Created on: 23/09/2022
Version Control System: git
Owner: ESA
SHIELDOSE-2Q software library for calculating ionising dose in simple geometries from particle flux spectra.

SHIELDOSE is a computer code originally developed in the 1980s for the calculation of absorbed dose as a function of depth in simplified shielding geometries. Since...

Updated on: 14/03/2022
Created on: 14/03/2022
ESA SysML Solution

ESA solution for performing MBSE in projects in accordance with ECSS and current systems engineering practices at the Agency. It includes a conceptual description o...

Updated on: 03/10/2022
Created on: 25/02/2022
ISO15390 Galactic Cosmic Ray Model FORTRAN implementation

The GCR ISO15390 model [1] is based on the semi-empirical GCR models of the Moscow State University (MSU) and is documented in . All formulas and parameters needed ...

Updated on: 24/02/2022
Created on: 22/02/2022
Version Control System: svn
Owner: ESA

DICTAT was developed to provide a practical engineering tool to address problems of internal dielectric charging. Electrical charging of dielectric materials in th...

Updated on: 24/02/2022
Created on: 22/02/2022
Version Control System: svn
Owner: ESA
Reference Radiation Simulation Scenarios

The Reference Radiation Simulation Scenarios includes models compatible with Monte Carlo simulations for radiation transport, including realistic and detailed geome...

Updated on: 08/04/2022
Created on: 22/02/2022

STARE is a real-time SofTwAre REceiver for positioning and monitoring of the fifth-generation (5G) new radio (NR) and long-term evolution (LTE) downlink signals. T...

Updated on: 28/02/2022
Created on: 09/12/2021
Multipactor Tool version 2.0.0

The key functionalities of the ECSS Multipactor Tool version 2.0.0 is the evaluation of the Multipactor risk on RF systems in single and multicarrier modes accordin...

Updated on: 06/10/2021
Created on: 30/09/2021