Welcome to ESA's Space Environment Information System, a WWW interface to models of the space environment and its effects, including the cosmic rays, natural radiation belts, solar energetic particles, plasmas, gases, and "micro-particles". 

Space Situational Awareness
In the framework of ESA's Space Situational Awareness Programme, the version 4.6.4 of SPENVIS has been re-deployed in Redu Data Centre.  Read more.

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. 

If you have forgotten your password, you can reset it here.  If you want to change your password, you can do it here

Use of SPENVIS on this site is free of charge, but a user registration is required.  Please read the terms & conditions before registering.

If you are student or teacher,
please read this first. 

Register now


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 

Current version
The current version of SPENVIS (4.6.7) was released on October 4, 2013. 

Project Manager: Michel Kruglanski
Application Engineers: Erwin De Donder & Neophytos Messios
IT development: Emmanuel Gamby, Laszlo Hetey & Stijn Calders
Contact: spenvis_team@aeronomie.be

ESA Technical Officer: H. Evans