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Name: Vaishali Sharan Affiliation: Indian Space Research Organisation Conference ID: ASI2020_317 Title : Chandrayaan-2 Large Area Soft X ray Spectrometer: Data processing algorithms and pipeline development Authors and Co-Authors : Vaishali S, S. Narendranath, Netra S Pillai, Koushal V Abstract Type : Poster Abstract Category : Instrumentation and Techniques Abstract : CLASS X ray spectrometer onboard the Chandrayaan-2 orbiter generate time tagged event list from each of the sixteen swept charge devices (SCDs) which is stored as a data packet onboard. The data recieved in this raw format at the Indian Space Science Data Centre (ISSDC) is then processed to a L0 format and transferred to the paylaod operation centre. The time tagged events from each SCD is binned to generate spectra at 8 second interval to match the time required for ground pixel coverage . The calibration parameters of each SCD is taken into account and the spectra added across the detectors to yield a combined X ray spectrum. We describe teh algorithms used at each stage of processing, implementation in the pipeline and conversion to PDS4 standard which is then archived for public release. |