| 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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| bottom plots | contact | ||||||||||||||||||||||||||||
| NAME | vimos_bias.py | |||||||||||||||||||||||||||
| VERSION |
1.0 -- edited from vimos_mosflat.py 1.0.1 -- supporting numpy V1.3 and matplotlib V0.99 (2009-10-30) 1.0.2 -- create cover sheet (2011-05-20) 1.0.3 -- skip call of scoreQC (2011-05-31) 1.0.4 -- changes needed for muc (2013-02-07) 1.0.5 -- changes for qc_mstplt v1.4 (2014-01-15) 1.0.6 -- changes for qc_mstdisp v1.3 (2014-01-20) 1.0.7 -- usage of argparse module (2014-03-31) 1.0.8 -- bug fix in call of qc_mstdisp (2014-05-09) | |||||||||||||||||||||||||||
| SYNTAX | PYTHON | |||||||||||||||||||||||||||
| CALL |
processQC from $DFS_PRODUCT/BIAS/$DATE /home/vimos/python/vimos_bias.py -i -a $AB | |||||||||||||||||||||||||||
| INSTRUMENT | VIMOS | |||||||||||||||||||||||||||
| RAWTYPE | BIAS | |||||||||||||||||||||||||||
| PURPOSE | QC check on raw and master bias frames | |||||||||||||||||||||||||||
| PROCINPUT | raw bias frames and MASTER_BIAS product | |||||||||||||||||||||||||||
| QC1TABLE |
trending | table(s) in QC1 database: vimos_bias | |||||||||||||||||||||||||||
| TRENDPLOT |
trending | HealthCheck plot(s) associated to this procedure: trend_report_BIASLEV_HC.html | trend_report_BIASNOISE_HC.html | trend_report_BIASRMS_HC.html | trend_report_BIASRON_HC.html | trend_report_BIASTEMP_HC.html | |||||||||||||||||||||||||||
| QC1PAGE |
trending | associated documentation: bias_qc1.html | |||||||||||||||||||||||||||
| QC1PLOTS top |
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 current master bias - reference master, for all four quadrants (only created together with plot for quadrant 1) bias2.png current master bias frames from all four quadrants (only created together with plot for quadrant 1) bias3.png central area of first raw bias, for all four quadrants (only created together with plot for quadrant 1) | |||||||||||||||||||||||||||
| QC1PARAM |
QC1 parameters written in QC1 database: QC1 DB names: median_master | mean_master | rms_master | fpn_master | struc_master | noise_master | median_raw | mean_raw | ron_bias | rms_raw | fpn_raw | struc_raw All parameters are calculated by the pipeline recipe. | |||||||||||||||||||||||||||
| ALGORITHM |
Description of algorithms: median_master: median of the 1600x1800 central pixels of master frame mean_master: mean of the 1600x1800 central pixels of master frame rms_master: standard deviation of the 1600x1800 central pixels of master frame fpn_master: fixed pattern noise of master; shift master by 10x10 pixels and subtract, calculate standard deviation of 1600x1800 central pixels of difference, subtract noise_master quadratically struc_master: subtract quadratically fpn_master and noise_master from rms_master noise_master: standard deviation of 1600x1800 central pixels but excluding pixels deviating by more than 3 * ron_bias / sqrt(DATANCOM) median_raw: median of the 1600x1800 central pixels of first raw frame mean_raw: mean of the 1600x1800 central pixels of first raw frame ron_bias: standard deviation of the 1600x1800 central pixels of the difference of the first two raw frames, divided by sqrt(2) rms_raw: standard deviation of the 1600x1800 central pixels of the first raw frame fpn_raw: standard deviation of the 1600x1800 central pixels of the difference of the first and second raw bias, shifted by 10x10 pixels; ron_bias is quadratically subtracted struc_raw: subtract quadratically fpn_raw and ron_bias from rms_raw | |||||||||||||||||||||||||||
| CERTIF |
Reasons for rejection: unusual high bias level or read-out noise, change of structure, lower DATANCOM value | |||||||||||||||||||||||||||
| COMMENTS | MIDAS script has been replaced by Python script (2009-08-07) | |||||||||||||||||||||||||||
| top | [2016-03-11T12:31:03] created by qcDocu v1.1.2, a tqs tool | |||||||||||||||||||||||||||
