InversionKit is an interactive Java program which performs linear inversions (rotational or structural) from frequency data. It was written by Daniel Reese and Sergei Zharkov for the European Helio- and Asteroseismology Network (HELAS).


Version 1.4 Source or Compiled version

RELEASE NOTE: Versions 1.0-1.2 contain an error in the rotational kernels, and versions 1.0-1.3 contain errors in the structural kernels. This has been corrected in version 1.4.


If InversionKit is used in any publication, the HELAS network kindly asks you to acknowledge the use of this software using a phrase such as the following:

“This article made use of InversionKit, an inversion software developed in the context of the European Helio- and Asteroseismology Network (HELAS), which is funded by the European Commission’s Sixth Framework Programme.”

Copyright information

InversionKit is distributed under the terms of the GNU General Public License, version 3. For more details, see documentation included in the distribution.

European Helio- and Asteroseismology Network