QC documentation system: QC procedure muse_bias.py for MUSE

This documentation is intended both for QC scientists and SciOps astronomers (who may want to ignore the technical information displayed in grey).
 
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muse_bias.py muse_dark.py
muse_lampflat.py muse_skyflat.py muse_arc.py muse_throughput.py
muse_std.py muse_astrometry.py
 
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NAME muse_bias.py
VERSION 1.0 -- copied from v. 0.1 when Muse became operational September 2014
SYNTAX PYTHON
CALL processQC
from $DFS_PRODUCT/BIAS/$DATE
/home/muse/python/muse_bias.py -i -a $AB
INSTRUMENT MUSE
RAWTYPE BIAS
PURPOSE QC check on raw and master bias frames check done per CHANEL/IFU (x24) of the raw and master bias frames
PROCINPUT raw bias frames and MASTER_BIAS product
QC1TABLE trending | table(s) in QC1 database:
muse_bias
TRENDPLOT trending | HealthCheck plot(s) associated to this procedure:
trend_report_BIAS_median_HC.html
QC1PAGE trending | associated documentation:
bias_qc1.html
QC1PLOTS
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bias0.png
upper left panel: cuts through first raw frame and master bias in X direction
upper middle panel: cuts through first raw frame and master bias in Y direction
upper right panel: histrograms of first raw frame and master, Gauss fit to master
central left panel: cuts through first raw frame and master in X direction, central area
central middle panel: cuts through first raw frame and master in Y direction, central area
central right panel: row and column averages of master
lower left panel: comparison to reference (current master - reference), cut in X direction
lower middle panel: comparison to reference (current master - reference), cut in Y direction
lower right panel: comparison to reference, histogram

bias1.png
snapshot of all detectors
QC1PARAM QC1 parameters written in QC1 database:
QC1 DB names: master1/2/3/4/_median | master1/2/3/4_mean | master1/2/3/4_stdev | master1/2/3/4_min | master1/2/3/4_max | master1/2/3/4_ron | master1/2/3/4_slope_x | master1/2/3/4/_slope_y
All parameters are calculated by the pipeline recipe.
ALGORITHM Description of algorithms:
master1/2/3/4/_median: median in the 1/2/3/4/quadrant of the master bias
master1/2/3/4/_mean: mean in the 1/2/3/4/quadrant of the master bias
master1/2/3/4/_stdev: standard deviation of the master bias in quadrant1/2/3/4
master1/2/3/4/_min: minimum value in the 1/2/3/4/quadrant of the master bias
master1/2/3/4/_max: maximum value in the 1/2/3/4/quadrant of the master bias
master1/2/3/4/_ron: read-out-noise in 1/2/3/4/quadrant from difference images of each adjacent
pair of biases in the input dataset in randomly placed windows
master1/2/3/4/_ronerr: read-out-noise error in 1/2/3/4/quadrant from difference images of each adjacent
pair of biases in the input dataset in randomly placed windows
master1/2/3/4_slope.x: average horizontal slope of master bias in quadrant1/2/3/4
master1/2/3/4_slope.y: average vertical slope of master bias in quadrant1/2/3/4
CERTIF Reasons for rejection:
unusual high bias level or read-out noise, change of structure, lower DATANCOM value
COMMENTS based on original Python script from March 2014
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