Cat-B Pixel Calibration#
Input Data#
Interleaved flat-field and NSB pedestal events continuously acquired during the night at a frequency of 100 Hz. The waveform of these events is stored by lstchain in hdf5 files in the onsite directory
/fefs/aswg/data/real/DL1/[date]/[lstchain_version]/interleaved,
A statistics of 2,500 events (per trigger type) is required in order to collect enough statistics per pixel and to guarantee a fast update of the interleaved calibration.
How To#
The production of one or many calibration files is performed using the slurm batch system by the tool lstcam_onsite_create_cat_b_calibration_files_with_batch with the simple command:
lstcam_calib_onsite_create_cat_b_calibration_files_with_batch -r [run_number_list]
In the case of one single run, the calibration coefficients can be produced interactively by the tool onsite_create_calibration_file, which can be run with the simple command:
lstcam_calib_onsite_create_cat_b_calibration_file -r [run_number]
It is possible to write data in a not official data-tree with the option -b [data-tree-root].
Output data#
Coefficients are written in a hdf5 format .
The data model and format is the same of Cat-A file: