Vis Large Flat Frame Product¶
Data product name¶
DpdVisMasterBiasFrame
Data product custodian¶
Name of the Schema file¶
euc-vis-MasterBiasFrame.xsdData product elements¶
- Header:
object of type sys:genericHeader
- Data:
object of type vis:visMasterBiasFrame
- QualityFlags:
object of type dqc:sqfPlaceHolder
- Parameters:
object of type ppr:genericKeyValueParameters
Schema documentation tag¶
Documentation for data product element DpdVisLargeFlatFrame:
Large Flat Calibration Pipeline result, using a series of self calibration exposures to calculate a Large Flat to be used in ou-vis science pipelines.
Documentation for data product element Header:
The generic header of the product.
Processing Element(s) creating/using the data product¶
Used internally in OUVIS for science pipeline (ProcessField) during the Correction stage. The Correction is a divide. Stores also the QE for it be done on Calibration Zero Point offset
Processing function using the data product¶
VIS
Detailed description of the data product¶
Large Flat Calibration Pipeline result, using a series of self calibration exposures to calculate a Large Flat to be used in ou-vis science pipelines.
Currently it identifies a field and observes it repeatedly with random pointings, thus the Largeflat product is heavily reliant on its modelling based on the results of Astrometry and positions form the Crossmatch.
The final product will be 36 extensions based on the detectors with the EXTNAME noted as the CCDID.SCI, 4096x4136 pixels.
The fianl product will store as part of the parameters the Uncertainties fits file that is the same size as the primary product.
Primary Header:
SIMPLE |
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BITPIX |
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NAXIS |
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EXTEND |
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OBSTYPE |
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ToFill |
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N_CCD |
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ToFill |
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EXPTIME |
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ToFill |
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DATAUNIT |
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RA |
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Commanded FPA pointing right ascension (deg) |
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DEC |
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Commanded FPA pointing declination (deg) |
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INSTRUME |
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VIS instrument |
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SEQID |
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VIS sequences as defined in EUCL-IFS-ICD-6-002 VIS Data ICD |
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ORIENTAT |
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ToFill |
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DATE |
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UT date when this file was created |
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DATE-OBS |
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UTC Date of observation (start), e.g. ‘2014-03-15T09:30:09.313’ |
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VERSION |
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END |
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Extension Header:
XTENSION |
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BITPIX |
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NAXIS |
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NAXIS1 |
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NAXIS2 |
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PCOUNT |
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GCOUNT |
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TIMESYS |
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Time scale of the time-related keywords |
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DATE |
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UT date when this file was created |
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MJDATE |
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MJD start time, e.g. 56731.39594113 |
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WCSAXES |
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Number of coordinate axes |
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CRPIX1 |
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Reference pixel x coordinate |
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CRPIX2 |
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Reference pixel y coordinate |
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CRVAL1 |
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Right ascension at ref pixel |
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CRVAL2 |
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Declination at ref pixel |
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CTYPE1 |
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Coordinamte 1 type |
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CTYPE2 |
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Coordinamte 2 type |
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RA |
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Commanded FPA pointing right ascension (deg) |
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DEC |
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Commanded FPA pointing declination (deg) |
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CD1_1 |
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Translation matrix element |
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CD1_2 |
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Translation matrix element |
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CD2_1 |
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Translation matrix element |
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CD2_2 |
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Translation matrix element |
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EXTNAME |
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Format: CCD row-CCD column, e.g. 2.3 |
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INSTRUME |
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VIS instrument |
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EXPTIME |
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Commanded integration time in seconds, e.g. 565.0 |
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DETECTOR |
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ToFill |
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GAIN |
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Maximum equivalent gain (e-/ADU) |
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RDNOISE |
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Read out Noise |
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QE |
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Quantum Efficiency |
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DC |
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ToFill |
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PIXSIZE |
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ToFill |
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PIXSCALE |
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ToFill |
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CCDID |
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e.g. Detector ID and quad, e.g. 1-1.H’ … ‘6-6.E’ |
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QUADID |
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e.g. Quadrant ID, e.g. ‘E’, ‘F’, ‘G’ or ‘H’ |
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PRESCANX |
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number of serial prescan pixels, e.g 51 |
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OVRSCANX |
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number of serial overscan pixels, e.g 20 |
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DETSEC |
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ToFill |
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ASEC |
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ToFill |
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DSEC |
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ToFill |
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TSEC |
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ToFill |
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BSEC |
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ToFill |
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CSEC |
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ToFill |
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MAXLIN |
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ToFill |
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SATURATE |
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Saturation Level (ADU) |
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NON_LIN |
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ToFill |
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RON_STD |
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ToFill |
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BIAS_LVL |
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Bias Level |
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ADC_MAX |
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ToFill |
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PC1_1 |
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Coordinate transformation matrix element |
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PC1_2 |
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Coordinate transformation matrix element |
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PC2_1 |
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Coordinate transformation matrix element |
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PC2_2 |
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Coordinate transformation matrix element |
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CDELT1 |
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[deg] Coordinate increment at reference |
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CDELT2 |
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[deg] Coordinate increment at reference |
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CUNIT1 |
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Physical units of CRVAL1 |
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CUNIT2 |
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Physical units of CRVAL2 |
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LONPOLE |
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[deg] Native longitude of celestial pol |
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LATPOLE |
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[deg] Native latitude of celestial pole |
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RADESYS |
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Astrometric system |
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DATE-OBS |
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UTC Date of observation (start), e.g. ‘2014-03-15T09:30:09.313’ |
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CHECKSUM |
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DATASUM |
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data unit checksum updated 2018-11-15T12:07:22 |
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NBIAS |
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Number of Bias Frames |
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COMBMETH |
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Combination Method Used |
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NORMMETH |
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Normalisation Method |
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END |
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