Welcome to SPENVIS

SPENVIS is ESA's SPace ENVironment Information System, a WWW interface to models of the space environment and its effects; including galactic cosmic rays, solar energetic particles, natural radiation belts, plasmas, gases, meteoroids and debris.

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Use of SPENVIS on this site is free of charge, but a user registration is required.

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Current version
The current version of SPENVIS (4.6.12) was released on June 17, 2024.

System requirements
SPENVIS requires a browser with JavaScript support (tested with Firefox 23 and MS-IE 9). Some outputs require a VRML/X3D plugin (tested with Octaga Player 2.3.0.3).

Need help?
Beside a large set of contextual help pages, the SPENVIS system includes a forum () where users can exchange their experiences and tips.  In case of problems, please consult our bug tracker system ( ) and feel free to post any bugs. 

The SPENVIS system is developed by a consortium led by the Royal Belgian Institute for Space Aeronomy (BIRA-IASB) for ESA's Space Environments and Effects Section through its General Support Technology Programme (GSTP).  The system is maintained by the development team at BIRA-IASB.

Current development team: Erwin De Donder (project manager), Neophytos Messios, Stijn Calders, Antoine Calegaro & Sami Mezhoud.

ESA Technical Officer: S. Clucas (ESA/ESTEC/TEC-EPS)