[to complete] NIR Relative Photometric Calibration factors among Detectors¶
Metadata¶
Data product name |
DpdNirRelPhotoDetCalibration |
Data product custodian |
NIR |
Name of the Schema file |
|
Processing Element(s) creating/using the data product |
The DpdNirRelPhotoDetCalibration is created by the NIR_SelfCalib_Pipeline. This pipeline compare source fluxes extracted in dedicated Self Calibration Field observations to derive detector by detector flux variations offset together with LargeScale pixel by pixel variations tracked by the [to complete] NIR Large Scale Flat (LargeFlat) Data Product. The task responsible for the DpdNirRelPhotoDetCalibration creation is NIR_Compute (under NIR_SelfCalib project). |
Processing function using the data product |
This is an internal NIR data product, and it is used only by the NIR PF. It is applied by the NIR_apply_relative_calibrations task (under NIR_RelativePhotometry project) inside the NIR_ProcessField_Pipeline. The task writes the photometric offset and corresponding error in PHRELDT and PHRELDTE keywords respectively on detector headers of scientific images. |
Data Product structure description¶
The main elements inside the Data section are:
Filter: The filter name (e.g. NIR_Y, NIR_J, NIR_H)
ValidityRange: Calibration file validity period estimated
- CorrectionFactorList: a list of single detector correction factors
Value: detector photometric correction factor
Error: detector photometric correction factor error
DetectorId: detector Id