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POLAR is a space-borne hard X-ray Compton polarimeter built by acollaboration of institutes from Switzerland, China and Poland. Precisedetection of the polarization can be a powerful tool to unveil emissionmechanisms of e.g. Gamma-Ray Bursts (GRB) or Solar Flares (SF). POLAR isequipped with an array of 1600 scintillator bars dimensioned for precisemeasurements of the polarization of hard X-rays in the energy range from 50 keVto 500 keV. The instrument was launched into space on September 15th, 2016on-board the Chinese Space Laboratory TG-2 for up to 3 years long observationperiod. Telemetry data from its operation in space may reach up tp 50 GB daily.To store and process such a huge amount of data both dedicated hardware andspecialized software are required. Moreover, constant data inflow also requiresa fully automated and safeguarded data processing. For this purpose, adedicated data centre was established at PSI. We present its design concept andstructure as well as demonstrate main features with respect to data processing,quick look utilities and alerting functions.

A fully autonomous data center for the space-borne hard X-ray Compton polarimeter POLAR developed at PSI