This documentation is intended both for QC scientists and SciOps astronomers (who may want to ignore the technical information displayed in grey).
|
|
|
|
|
bottom
plots
|
contact
|
|
NAME |
lamp_mxu_qc.prg
|
|
VERSION |
2.0 -- adapted for WAVE and FLAT for new pipeline
|
|
SYNTAX |
MIDAS
|
|
CALL |
measureQuality
from $DFS_PRODUCT/LAMP_MXU/$DATE:
inmidas -P -j "@@ $DFO_PROC_DIR/lamp_mxu_qc.prg $date $PF"
|
|
INSTRUMENT |
FORS2
|
|
RAWTYPE |
LAMP_MXU
|
|
PURPOSE |
compares raw and product WAVE and FLAT files
for FORS2 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:
fors2_mxu_wave
|
|
TRENDPLOT |
trending | HealthCheck plot(s) associated to this procedure:
|
|
QC1PAGE |
trending | associated documentation:
mxuwlc/mxuwlc.html
|
|
QC1PLOTS
top |
lamp_mxu_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_mxu_grap2.png
each box: non-linear terms of fit and deviations from linear fit for some slitlets
top panel: date; name of disp residuals table (red), setup parameters (filter, grism, mask, chip)
lamp_mxu_disp1.png
full display of reduced arc frame
lamp_mxu_disp2.png
full display of master screen flat
lamp_mxu_disp3.png
full display of normalized master flat
|
|
QC1PARAM |
QC1 parameters written into QC1 table:
QC1db names: num_slit | n_lin_av | avg_accuracy | sig_accuracy | mean_disp_av
FITS key names: (lamp_mxu_qc.prg) | QC.WAVE.ACCURACY | QC.WAVE.ACCURACY.ERROR | (lamp_mxu_qc.prg)
QC1db names: resol_avg | resol_rms | nlines_total
FITS key names: QC.MXU.RESOLUTION | QC.MXU.RESOLUTION.RMS | QC.MXU.RESOLUTION.NLINES
QC1db names: resol_meanrms | nwave
FITS key names: QC.MXU.RESOLUTION.MEANRMS | QC.MXU.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:
- unusual shape of non-linear terms (e.g. double peak/valley);
- curved/slanted lines in the reduced arc image (unless they were originally non-vertical, as the almost central spectrum in the example plot, see below);
- several missing/empty slitlets in normalized flat field image;
- curved slitlets in the normalized master flat
- 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. Curved or slanted slitlets are not handled correctly by the pipeline
|
top |
[2015-11-05T15:13:47] created by qcDocu v1.1.2, a tqs tool
|