Primary header¶
The primary header contains keywords to identify FITS data type and validity range.
$PrintPrimaryHeader fit/euc-test-nir.xml nir.badPixelMask
[to complete] NIR Bad Pixel Mask¶
$SetSchemaPath nir/euc-test-nir-BadPixelMask.xsd
Data Product Name¶
$PrintDataProductName
Data Product Custodian¶
$PrintDataProductCustodian
Name of the Schema File¶
$PrintSchemaFilename
Data Product Elements¶
$PrintDataProductElements
Detailed Description of the Data Product¶
The NIR Bad Pixel Mask contains bad and unreliable pixels in the near-infrared detectors.
Processing Element(s) creating/using the data product¶
The Bad Pixel Mask is created by makeNirBadPixels task in NIR_BadPixelMasking project.
It creates a mask for the bad pixels in the near-infrared detectors. It makes a list of bad pixels based on the detector data obtained from GFSC, which consists of test data with dis-connected pixels, zero-fluence pixels, and noisy pixels.
It combines a set of [to complete] NIR Bad Pixel Flavor Mask to create the final NIR Bad Pixel Mask.
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 maskBadpixels task (under NIR_BadPixelMasking project) in the NIR_ProcessField_Pipeline and in most of the calibration pipelines.
Data Product structure description¶
The main elements inside the Data section are:
ValidityRange: Calibration file validity period estimated
DataStorage: Element that links to a FITS file containing the Bad Pixel Mask FITS file
- QualityParams (optional): List of Detector Data Quality Parameters
DetectorId: Detector id
TotalBadPixels: Total number of bad pixels (NBADPIXT)
DisconnettedBP: Number of disconnected pixels (NBADPIX1)
ZeroQEBP: Number of Zero Quantum Efficiency pixels (NBADPIX2)
RTNoiseBP: Number of pixels detected with RTN (NBADPIX3)
SnowballingBP: Number of snowballing pixels (NBADPIX4)
HotBP: Number of Hot pixels (NBADPIX5)
HLBaselineBP: Number of High-Low baseline pixels (NBADPIX6)
LowQEBP: Number of Low Full Well pixels (NBADPIX7)
SuperQEBP: Number of Super Quantum Efficiency pixels (NBADPIX8)
The Quality Parameter section tracks the number of single flavor pixels, propagating information stored in [to complete] NIR Bad Pixel Flavor Mask used for Bad Pixel Mask creation.
FITS file description¶
The Bad Pixel Mask FITS file is composed by a Table to store bad pixels coordinates in pixel and the corresponding flag value to be used.
BPM Extension¶
The BPM header contains the list of the number of single flavor bad pixels used in Bad Pixel Mask creation.
$PrintExtensionHeader fit/euc-test-nir.xml nir.badPixelMask BPM
The BPM layer has a Table with the columns
$PrintCatalog fit/euc-test-nir.xml nir.badPixelMask