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

GRAS (Geant4 Radiation Analysis for Space)

GRAS is a Geant4-based tool enabling common radiation analyses types (TID, TNID, fluence, SEE, path length, charge deposit, dose equivalent, equivalent dose, radiat...

Updated on: 12/12/2019
Created on: 02/04/2019
OPEN Preparation Environment

The OPEN Preparation Environment (OPEN) is a software framework supporting the preparation of tailoring data for European Ground Systems Common Core (EGS-CC) based ...

Updated on: 11/03/2020
Created on: 08/02/2019

COMPASS (COrrectness, Modeling and Performance of AeroSpace Systems) is a toolset aiming to ensure system-level correctness, safety, dependability and performabili...

Updated on: 14/04/2019
Created on: 13/09/2018
Owner: RWTH Aachen University (Germany) and Fondazione Bruno Kessler (Italy)
mobiPV - a mobile procedure viewer

mobiPV is a modular network enabled application for an operator / technician to use as an interactive electronic technical manual (IETM) browser, consisting of one ...

Updated on: 09/11/2018
Created on: 13/09/2018
Owner: ESA
MTAPI for LEON multicore

The Multicore Association’s Multicore Task Management API (MTAPI ®) provides functionality for task based programming on embedded systems. This includes spawning...

Updated on: 12/11/2019
Created on: 09/08/2018
NeQuickG (Galileo ionospheric correction model)

The algorithm proposed for Galileo single-frequency receivers to correct for ionospheric delays is based on an adaptation of the three-dimensional NeQuick electron ...

Updated on: 08/12/2019
Created on: 22/06/2018
MLFS - Mathematical Library for Flight Software

Mathematical libraries are used in nearly any Flight Software and in particular in the AOCS/GNC and scientific algorithms. The common practice to manage the mathema...

Updated on: 04/09/2018
Created on: 12/06/2018
Science Operations Configuration Control Infrastructure (SOCCI)

As part of the Science Operations Department at ESA’s European Space Astronomy Center (ESAC) the Science Cross-Mission Support Office has developed the Science ...

Updated on: 08/12/2019
Created on: 04/06/2018
CCSDS EDS Reference Tooling

CCSDS Spacecraft Onboard Interface Services Electronic Data Sheet Reference Tooling. An Electronic Data Sheet (EDS) describes the format of information in a data ...

Updated on: 11/12/2019
Created on: 05/02/2018
Version Control System: git
Owner: ESA
OSRA - Onboard Software Reference Architecture

  The Onboard Software Reference Architecture (OSRA) is a comprehensive reference architecture for spacecraft onboard software which is intended to address the ma...

Updated on: 11/11/2019
Created on: 08/11/2017