The source code of Where is available at GitHub.

Clone and update Where v0.16.0

The simplest way to download Where and do later updates is by cloning the Where repository:

git clone

With a cloned repository you can update to version 0.16.0 by doing:

cd where
git fetch origin
git checkout tags/v0.16.0

See Installing Where for details on how to install the software.

Download Where v0.16.0

If you prefer to download the source code as a zip- or tar-file, you can use the following links:

See Installing Where for details on how to install the software.


Version 0.16.0 is a big update to version 0.12.1. Versions between 0.12.1 and 0.16.0 have been internal versions.

The following are the biggest changes since version 0.12.1:

  • Improved handling of vgosDb files.
  • New obs module for parsing observations and creating datasets.
  • Fix bugs in dependency testing.
  • Use a sparse matrix for phi in the Kalman filter to save memory.
  • Save automatically detected outliers to config file.
  • Fix bug in LOD estimation.
  • More options for EOPs.
  • Improved readability of estimation models.

Note: The Where software is currently in Beta. There are still a few bugs in the analysis we are ironing out. We will also do some upgrades to the internal data structures used to store data that will break with the current ones. You should not use Where for any production level work yet. However, let us know if you are interested in using the software and we will keep you updated as it matures.