FACT Tools

The fact-tools are a set of Java classes that provide an extension to the streams framework enabling it to read and process data from the FACT telescope. The objective of this project is to provide scalable preprocessing for the analysis chain of FACT data.

The FACT (First G-APD Cherenkov Telescope) Telescope is located on the Island of La Palma at the Observatorio del Roque de los Muchachos. It was put into operation in 2011 and has been watching various gamma ray sources since then.


To get started quickly check out the Quickstart Guide


One of the central components of the fact-tools is the FACT viewer application. This tool provides a simple interactive visualization component for FACT data.

Standard Analysis

To get information about the standard analysis click here


For a quick overview for creating your own custom processors see the Programming Section


You can download the latest FACT tools binary build from the stable branch in the Downloads section

You can checkout the source code from our Bitbucket Repository

Build Status