COSI Data Challenges

The COSI data challenges are released on a yearly basis in preparation for the launch of the COSI Small Explorer (SMEX) class mission in 2027. The data challenges are based on simulated data, which is intended to closely mimic the real flight data. Every year they have increasingly more realistic source and background models, and they are analyzed with increasingly complete and matured analysis tools. The two main goals of the data challenges are to facilitate development of the COSI data pipeline and analysis tools and provide resources to the astrophysics community to become familiar with COSI data.