Observation data pre-processing and scientific data products generation of POLAR
POLAR is a compact space-borne detector initially designed to measure the polarization of hard X-ray emitted from Gamma-Ray Bursts in the energy range 50-500keV. This instrument has been launched successfully onboard the Chinese space laboratory TG-2 on 15th September, 2016. After being switched on a few days later, tens of gigabytes of detection raw data were produced in-orbit by POLAR and transferred to ground every day. Before the launch date, a full pipeline and the related software were designed and developed for the purpose to quickly pre-process all the raw data of POLAR, which include both science data and engineering data, then to generate the high level scientific data products that are suitable for later science analysis. This pipeline has been successfully applied for the use by the POLAR Science Data Center in IHEP after POLAR was launched and switched on. A detailed introduction of the pipeline and some of the core relevant algorithms are presented in this paper.
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