NIR Master Dark

Data product name

MasterDark

Data product custodian

NIR

Data model tag

R-1.6.7

Name of the Schema file

euc-test-nir-MasterDark.xsd

Schema documentation tag

Documentation for data product element DpdNirMasterDarkFrame:

Master dark frame to be used to subtract dark current from science frame.

Data product elements

Header of type: sys:genericHeader

Data of type: nir:nirMasterDarkFrame

Parameters of type: ppr:genericKeyValueParameters

Processing Element(s) creating/using the data product

It is created by a calibration pipeline which combines dark frames taken at the end of each science sequence as well as dedicated dark frames to create a master dark for each set of science data (filter, observing mode, etc.).

It is used by NIR_DarkBiasSubtraction PE.

Processing function using the data product

This is an internal NIR data product, and it is used only by the NIR PF.

Detailed description of the data product

The structure of the NIR Master Dark is the same as the Science Image of the NIR Calibrated Frame with 16 x 3 layers, i.e. containing median dark current, RMS, and Data Quality flags for each detector.

A master dark frame for each observing mode and filter is foreseen. In addition, a set of metadata is used to describe the validity range, the time interval and the list of raw dark frames used to generate the master dark, the temperature of the focal plane.