Documentation of QC procedures: procedure lamp_mos_qc_2CCD.prg for FORS1

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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bias_qc_2CCD.prg dark_qc_2CCD.prg detmon_qc.prg
flat_scr_qc_2CCD.prg lamp_std_qc_2CCD.prg lamp_lss_qc_2CCD.prg lamp_mos_qc_2CCD.prg
flat_sky_qc_2CCD.prg std_ima_qc_2CCD.prg std_lss_qc_2CCD.prg std_mos_qc_2CCD.prg
sci_img_qc_2CCD.prg sci_lss_qc_2CCD.prg sci_mos_qc_2CCD.prg
 
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NAME lamp_mos_qc_2CCD.prg
VERSION 2.0 -- adapted for WAVE and FLAT for new pipeline 2.1 -- adapted for 2CCDs in FORS1
SYNTAX MIDAS
CALL measureQuality
from $DFS_PRODUCT/LAMP_MOS/$DATE:
inmidas -P -j "@@ $DFO_PROC_DIR/lamp_mos_qc_2CCD.prg $date $PF"
INSTRUMENT FORS1
RAWTYPE LAMP_MOS
PURPOSE compares raw and product WAVE and FLAT files for FORS1 QC assessment; the plots are later reviewed within certifyProducts. The plots are stored as Postscript file in $DFO_PLT_DIR.
PROCINPUT first raw flat and arc from AB;
products: resolution table, reduced arc image, delta image,
disp residuals table, wavemap image; master screen flat and normalized master flat
QC1TABLE trending | table(s) in QC1 database:
fors1_mos_wave
TRENDPLOT trending | HealthCheck plot(s) associated to this procedure:
trend_report_MOS_lambda_c_HC.html
QC1PAGE trending | associated documentation:
moswlc/moswlc.html
QC1PLOTS
top

lamp_mos_grap1.png
top:residuals per slitlet; the number of the slitlet determines the plot symbol
bottom: average resolving power;
top panel: date; name of disp residuals table (red), setup parameters (filter, grism, mask, chip)

lamp_mos_grap2.png
each box: non-linear terms of fit and deviations from linear fit for each slitlet
top panel: date; name of disp residuals table (red), setup parameters (filter, grism, mask, chip)

lamp_mos_disp1.png
full display of reduced arc frame

lamp_mos_disp2.png
full display of normalized master flat

lamp_mos_disp3.png
full display of master flat
QC1PARAM QC1 parameters written into QC1 table:
QC1db names: n_lin_av | avg_accuracy | sig_accuracy | mean_disp_av
FITS key names: (lamp_std_qc_2CCD.prg) | QC.WAVE.ACCURACY | QC.WAVE.ACCURACY.ERROR | (lamp_std_qc_2CCD.prg) | (lamp_std_qc_2CCD.prg)
QC1db names: central_wlen | central_resol | central_resol_rms | nlines_total
FITS key names: QC.MOS.CENTRAL.WAVELENGTH | QC.MOS.RESOLUTION | QC.MOS.RESOLUTION RMS | QC.MOS.RESOLUTION.NLINES
QC1db names: central_resol_meanrms | nwave
FITS key names: QC.MOS.RESOLUTION.MEANRMS | QC.MOS.RESOLUTION.NWAVE
ALGORITHM Description of algorithms:
num_slit: number of slitlets identified
n_lin_av: number of identified arc lines per CCD row, averaged over all slitlets
disp: mean dispersion, averaged over all slitlets
CERTIF Reasons for rejection:
- only 1 flat
- unusual shape of non-linear terms (e.g. double peak/valley);
- curved or slanted lines in the reduced arc image;
- several missing/empty slitlets in normalized flat field;
- curved slitlets in the normalized master flat and/or rebinned arc
- different line widths are NO cause for rejection, as observers may use different slit widths in one setup
COMMENTS Gaps due to unused slitlets do not show up in the reduced arc frame, which shows only detected slitlets.
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