visir_old_spc_wcal7

Usage

Overview

This recipe estimates the dispersion relation using the atmospheric spectrum in a long-slit spectroscopy half-cycle frame.

The files listed in the Set Of Frames (sof-file) must be tagged: VISIR-Long-Slit-Spectroscopy-file.fits SPEC_CAL_LMR_WCAL VISIR-Quantum-Efficiency-Calibration-file.fits SPEC_CAL_QEFF VISIR-Atmospheric-Emission-Lines-Calibration-file.fits SPEC_CAL_LINES

Additionally, a bad pixel map with a PRO.CATG of SPEC_BPM may be added to the Set Of Frames with tag: BPM.

Options

--auto_bpm <bool>

Automatic detection and correction of bad pixels (bool; default: True). The full name of this option for the EsoRex configuration file is visir.visir_old_spc_wcal.auto_bpm [default = True].

--plot <int>

The recipe can produce a number of predefined plots. Zero means that none of the plots are produced, while increasing values (e.g. 1 or 2) increases the number of plots produced. If the plotting fails a warning is produced, and the recipe continues. The default behaviour of the plotting is to use gnuplot (with option -persist). The recipe currently produces 1D-plots using gnuplot commands. The recipe user can control the actual plotting-command used by the recipe to create the plot by setting the environment variable CPL_PLOTTER. Currently, if CPL_PLOTTER is set it must contain the string ´gnuplot´. Setting it to ´cat > my_gnuplot_$$.txt´ causes a number of ASCII-files to be created, which each produce a plot when given as standard input to gnuplot (e.g. later or on a different computer). A finer control of the plotting options can be obtained by writing an executable script, e.g. my_gnuplot.pl, that executes gnuplot after setting the desired gnuplot options (e.g. set terminal pslatex color) and then setting CPL_PLOTTER to my_gnuplot.pl. The predefined plots include plotting of images. Images can be plotted not only with gnuplot, but also using the pnm format. This is controlled with the environment variable CPL_IMAGER. If CPL_IMAGER is set to a string that does not contain the word gnuplot, the recipe will generate the plot in pnm format. E.g. setting CPL_IMAGER to ´display - &´ will produce a gray-scale image using the image viewer display. (int; default: 0). The full name of this option for the EsoRex configuration file is visir.visir_old_spc_wcal.plot [default = 0].

--slit_skew <float>

Distortion correction: Skew of slit (degrees) (clockwise) (float; default: 0.52). The full name of this option for the EsoRex configuration file is visir.visir_old_spc_wcal.phi [default = 0.52].

--spectrum_skew <float>

Distortion correction: LMR Skew of spectrum (degrees) (counter- clockwise). Not used in High Resolution (float; default: 1.73). The full name of this option for the EsoRex configuration file is visir.visir_old_spc_wcal.ksi [default = 1.73].

--vert_arc <float>

Distortion correction: LR Detector vertical curvature (pixel). Reduced by a factor 4 in MR. Not used in HR A-side. Increased by a factor 115/52 in HR B-side (float; default: -0.8). The full name of this option for the EsoRex configuration file is visir.visir_old_spc_wcal.eps [default = -0.8].

--hori_arc <float>

Distortion correction: LMR Detector horizontal curvature (pixel). Increased by a factor 1.5 in HR A-side. Reduced by a factor 2 in HR B-side (float; default: 0.0). The full name of this option for the EsoRex configuration file is visir.visir_old_spc_wcal.delta [default = 0.0].

--rl <int>

Reject leftmost columns in spectrum extraction, zero means all columns on the left are used. In cross-dispersion mode a (small) negative number may be used (pixel) (int; default: 0). The full name of this option for the EsoRex configuration file is visir.visir_old_spc_wcal.reject_left [default = 0].

--rr <int>

Reject rightmost columns in spectrum extraction, zero means all columns on the right are used. In cross-dispersion mode a (small) negative number may be used (pixel) (int; default: 0). The full name of this option for the EsoRex configuration file is visir.visir_old_spc_wcal.reject_right [default = 0].

Note that it is possible to create a configuration file containing these options, along with suitable default values. Please refer to the details provided by the 'esorex --help' command.

Version

visir_old_spc_wcal 4.4.2