Freja charging database


The access to the updated Freja charging database is now available at


Please report about possible problems with linking etc. to

The stuff below belongs to the old version. Note: the old directory name "sc_charging" is changed to "sc_charging_old". The top level directory of the new data is "freja_light".


Access to the database of spacecraft charging events identified during the operation of the Freja satellite is provided. A total of 291 surface charging events have been detected. The data set can be organized according to peak charging level, light conditions and charging duration.


Data access form: with Java - no Java

Reduced statistical data as an ASCII file (see instructions)

Freja home page

Contact persons


Spacecraft anomaly prediction
SPEE home page

17.10. 2003 - Ari Viljanen (email:

ESTEC contract 11974/96/NL/JG(SC) (*)