.TH XSH_GEOM_IFU "7" "2.5.2" "xsh_geom_ifu" "xshoo recipes"
.SH NAME
xsh_geom_ifu \- Produces the spatial geometry of the IFU pattern on the sky

.SH SYNOPSIS
esorex
.B xsh_geom_ifu
[OPTIONS] FILE.sof

.SH DESCRIPTION
This recipe Produces the spatial geometry of the IFU pattern on the sky
Input Frames : 
  \- A set of n science frames ( n == 1 or >=3, Tag = TRACE_arm)
  \- [UVB,VIS] A master bias frame (Tag = MASTER_BIAS_arm)
  \- [OPTIONAL] A master dark frame (Tag = MASTER_DARK_arm)
  \- A master flat frame (Tag = MASTER_FLAT_IFU_arm)
  \- An AFC corrected model order edges table for IFU frame (Tag = ORDER_TAB_AFC_IFU_arm)
  \- [PHYSMOD] An AFC corrected model cfg frame (Tag = XSH_MOD_CFG_OPT_AFC_arm)
  \- [POLY] An AFC corrected model wavesol frame (Tag = WAVE_TAB_AFC_arm)
  \-  An AFC corrected dispersion solution frame (Tag = DISP_TAB_AFC_arm)
  \- [OPTIONAL] A badpixel map (Tag = BADPIXEL_MAP_arm)
Products : 
  \- A set of shift offset tables (Tag = OFFSET_TAB_slitlet_IFU_arm)


.SH OPTIONS
.TP
\fB\-\-keep\-temp\fR \fI<str>\fR
If \'no\', temporary files are deleted. (str; default: \'no\'). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.keep\-temp\fR [default = \fIno\fR].
.TP
\fB\-\-debug\-level\fR \fI<str>\fR
Additional xshooter debug level. One of \'none\', \'low\', \'medium\',
\'high\' (str; default: \'none\'). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.debug\-level\fR [default = \fInone\fR].
.TP
\fB\-\-time\-stamp\fR \fI<bool>\fR
Add timestamp to product file name. (bool; default: False). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.time\-stamp\fR [default = \fIFalse\fR].
.TP
\fB\-\-decode\-bp\fR \fI<long>\fR
Integer representation of the bits to be considered bad when decoding
the bad pixel mask pixel values. (long; default: 2144337919). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.decode\-bp\fR [default = \fI2144337919\fR].
.TP
\fB\-\-pre\-overscan\-corr\fR \fI<long>\fR
pre\-overscan correction.0: no correction1: mean overscan correction2:
mean prescan correction3: (mean pre+mean overscan)/2 correction (long;
default: 1). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.pre\-overscan\-corr\fR [default = \fI1\fR].
.TP
\fB\-\-stack\-method\fR \fI<str>\fR
Method used to build master frame. (str; default: \'median\'). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.stack\-method\fR [default = \fImedian\fR].
.TP
\fB\-\-klow\fR \fI<float>\fR
Kappa used to clip low level values, when method is set to \'mean\'
(float; default: 5.0). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.klow\fR [default = \fI5.0\fR].
.TP
\fB\-\-khigh\fR \fI<float>\fR
Kappa used to clip high level values, when method is set to \'mean\'
(float; default: 5.0). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.khigh\fR [default = \fI5.0\fR].
.TP
\fB\-\-crh\-clip\-kappa\fR \fI<float>\fR
Kappa value in sigma clipping during CRH rejection using multiple
frames (float; default: 5.0). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.crh\-clip\-kappa\fR [default = \fI5.0\fR].
.TP
\fB\-\-crh\-clip\-niter\fR \fI<long>\fR
Number of iterations in sigma clipping during CRH rejection using
multiple frames (long; default: 5). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.crh\-clip\-niter\fR [default = \fI5\fR].
.TP
\fB\-\-crh\-clip\-frac\fR \fI<float>\fR
Minimal ratio of points accepted / total in sigma clipping during CRH
rejection using multiple frames (float; default: 0.7). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.crh\-clip\-frac\fR [default = \fI0.7\fR].
.TP
\fB\-\-background\-edges\-margin\fR \fI<long>\fR
X margin to order edge to define background sampling points (long;
default: 1). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.background\-edges\-margin\fR [default = \fI1\fR].
.TP
\fB\-\-background\-poly\-deg\-y\fR \fI<long>\fR
Poly mode fit deg along Y. (long; default: 9). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.background\-poly\-deg\-y\fR [default = \fI9\fR].
.TP
\fB\-\-background\-poly\-deg\-x\fR \fI<long>\fR
Poly mode fit deg along X. (long; default: 9). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.background\-poly\-deg\-x\fR [default = \fI9\fR].
.TP
\fB\-\-background\-poly\-kappa\fR \fI<float>\fR
Poly mode kappa value of kappa\-sigma\-clip outliers removal. (float;
default: 10.0). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.background\-poly\-kappa\fR [default = \fI10.0\fR].
.TP
\fB\-\-removecrhsingle\-sigmalim\fR \fI<float>\fR
Poisson fluctuation threshold to flag CRHs (see van Dokkum,
PASP,113,2001,p1420\-27) (float; default: 5.0). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.removecrhsingle\-sigmalim\fR [default = \fI5.0\fR].
.TP
\fB\-\-removecrhsingle\-flim\fR \fI<float>\fR
Minimum contrast between the Laplacian image and the fine structure
image that a point must have to be flagged as CRH. (see van Dokkum,
PASP,113,2001,p1420\-27) (float; default: 2.0). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.removecrhsingle\-flim\fR [default = \fI2.0\fR].
.TP
\fB\-\-removecrhsingle\-niter\fR \fI<long>\fR
Max number of iterations (long; default: 4). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.removecrhsingle\-niter\fR [default = \fI4\fR].
.TP
\fB\-\-rectify\-kernel\fR \fI<str>\fR
Name of the Interpolation Kernel Used. Possible values are:  tanh,
sinc, sinc2, lanczos, hamming, hann. (str; default: \'tanh\'). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.rectify\-kernel\fR [default = \fItanh\fR].
.TP
\fB\-\-rectify\-radius\fR \fI<float>\fR
Rectify Interpolation radius [bin units]. (float; default: 4.0). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.rectify\-radius\fR [default = \fI4.0\fR].
.TP
\fB\-\-rectify\-bin\-lambda\fR \fI<float>\fR
Wavelength step in the output spectrum [nm] (float; default: \-1.0). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.rectify\-bin\-lambda\fR [default = \fI\-1.0\fR].
.TP
\fB\-\-rectify\-bin\-slit\fR \fI<float>\fR
Spatial step along the slit in the output spectrum [arcsec] (float;
default: \-1.0). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.rectify\-bin\-slit\fR [default = \fI\-1.0\fR].
.TP
\fB\-\-localizeifu\-bckg\-deg\fR \fI<long>\fR
Degree (<=2) of the polynomial component in the cross\-dispersion
profile fit (long; default: 50). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.localizeifu\-bckg\-deg\fR [default = \fI50\fR].
.TP
\fB\-\-localizeifu\-smooth\-hsize\fR \fI<long>\fR
Half\-size of the median filter for smoothing the cross\-dispersion
profile prior to localization (long; default: 3). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.localizeifu\-smooth\-hsize\fR [default = \fI3\fR].
.TP
\fB\-\-localizeifu\-wavelet\-nscales\fR \fI<long>\fR
Number of scales used for wavelet a trous algorithm (long; default: 5). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.localizeifu\-wavelet\-nscales\fR [default = \fI5\fR].
.TP
\fB\-\-localizeifu\-wavelet\-hf\-skip\fR \fI<long>\fR
Number of high frequency scales skipped from the wavelet decomposition
(long; default: 2). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.localizeifu\-wavelet\-hf\-skip\fR [default = \fI2\fR].
.TP
\fB\-\-localizeifu\-sigma\-low\fR \fI<float>\fR
Gaussian fits of the cross\-dispersion profile whose FWHM is lower than
this value are rejected (float; default: 0.05). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.localizeifu\-sigma\-low\fR [default = \fI0.05\fR].
.TP
\fB\-\-localizeifu\-sigma\-up\fR \fI<float>\fR
Gaussian fits of the cross\-dispersion profile whose FWHM is larger
than this value are rejected (float; default: 0.95). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.localizeifu\-sigma\-up\fR [default = \fI0.95\fR].
.TP
\fB\-\-localizeifu\-snr\-low\fR \fI<float>\fR
Gaussian fits of the cross\-dispersion profile whose SNR is lower than
this value are rejected (float; default: 0.05). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.localizeifu\-snr\-low\fR [default = \fI0.05\fR].
.TP
\fB\-\-localizeifu\-snr\-up\fR \fI<float>\fR
Gaussian fits of the cross\-dispersion profile whose SNR is larger than
this value are rejected (float; default: 0.95). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.localizeifu\-snr\-up\fR [default = \fI0.95\fR].
.TP
\fB\-\-localizeifu\-slitlow\-edges\-mask\fR \fI<float>\fR
in arsec (float; default: 0.0). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.localizeifu\-slitlow\-edges\-mask\fR [default = \fI0.0\fR].
.TP
\fB\-\-localizeifu\-slitup\-edges\-mask\fR \fI<float>\fR
in arsec (float; default: 0.0). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.localizeifu\-slitup\-edges\-mask\fR [default = \fI0.0\fR].
.TP
\fB\-\-localizeifu\-use\-skymask\fR \fI<bool>\fR
TRUE if we want to mask sky lines using SKY_LINE_LIST file. (bool;
default: False). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.localizeifu\-use\-skymask\fR [default = \fIFalse\fR].
.TP
\fB\-\-localizeifu\-chunk\-hsize\fR \fI<long>\fR
Half size of chunk [bin] (long; default: 0). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.localizeifu\-chunk\-hsize\fR [default = \fI0\fR].
.TP
\fB\-\-correctifu\-niter\fR \fI<long>\fR
Number of iterations in computing the localization shifts of the IFU
slitlets (long; default: 3). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.correctifu\-niter\fR [default = \fI3\fR].
.TP
\fB\-\-correctifu\-lambdaref\fR \fI<float>\fR
Reference wavelength where the reference localization on the slit is
chosen (float; default: \-1.0). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.correctifu\-lambdaref\fR [default = \fI\-1.0\fR].
.TP
\fB\-\-correctifu\-lambdaref\-hsize\fR \fI<float>\fR
HAlf size in nm to estimate reference wavelength (float; default: 2.5). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.correctifu\-lambdaref\-hsize\fR [default = \fI2.5\fR].
.TP
\fB\-\-do\-cube\fR \fI<bool>\fR
if TRUE creates a data cube (bool; default: False). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.do\-cube\fR [default = \fIFalse\fR].
.TP
\fB\-\-compute\-map\fR \fI<bool>\fR
if TRUE recompute (wave and slit) maps from the dispersion solution.
(bool; default: True). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.compute\-map\fR [default = \fITrue\fR].
.TP
\fB\-\-check\-afc\fR \fI<bool>\fR
Input AFC corrected model/wave solution and science frame check.If
TRUE the recipe verify that the input mode/wave solution is AFC
corrected, its INS.OPTIi.NAME is \'Pin_0.5 \', and its OBS.ID and
OBS.TARG.NAME values matches with the corresponding values of the
science frame. (bool; default: True). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.check\-afc\fR [default = \fITrue\fR].
.TP
\fB\-\-flat\-method\fR \fI<str>\fR
method adopted for flat: (str; default: \'blaze\'). The full name of this option for the EsoRex configuration
file is \fBxsh.xsh_geom_ifu.flat\-method\fR [default = \fIblaze\fR].

.PP
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.

.SH SEE ALSO
The full documentation for the xshoo pipeline can be downloaded as 
a PDF file using the following URL:
.IP
.B ftp://ftp.eso.org/pub/dfs/pipelines/xshoo/xshoo\-pipeline\-manual\-12.1.pdf
.PP
An overview over the existing ESO pipelines can be found on the web page
\fBhttp://www.eso.org/sci/software/pipelines/\fR.
.PP
Basic documentation about the EsoRex program can be found at the esorex (1) 
man page.
.PP
It is possible to call the pipelines from python using the python\-cpl package.
See \fBhttp://packages.python.org/python\-cpl/index.html\fR for further
information.
.PP
The other recipes of the xshoo pipeline are
.IR xsh_cfg_recover (7),
.IR xsh_lingain (7),
.IR xsh_wavecal (7),
.IR xsh_scired_slit_nod (7),
.IR xsh_respon_slit_nod (7),
.IR xsh_mdark (7),
.IR xsh_respon_slit_offset (7),
.IR xsh_orderpos (7),
.IR xsh_scired_ifu_stare_drl (7),
.IR xsh_scired_ifu_stare (7),
.IR xsh_flexcomp (7),
.IR xsh_scired_ifu_offset_drl (7),
.IR xsh_util_physmod (7),
.IR xsh_respon_slit_stare (7),
.IR xsh_2dmap (7),
.IR xsh_mflat (7),
.IR xsh_mbias (7),
.IR xsh_predict (7),
.IR xsh_scired_ifu_offset (7),
.IR xsh_scired_slit_stare (7),
.IR xsh_scired_slit_offset (7)

.SH VERSION
xsh_geom_ifu 2.5.2

.SH AUTHOR
P.Goldoni, L.Guglielmi, R. Haigron, F. Royer <regis.haigron@obspm.fr>

.SH BUG REPORTS
Please report any problems to regis.haigron@obspm.fr. Alternatively, you may send a report to the ESO User Support Department <usd\-help@eso.org>.

.SH LICENSE
This file is part of the X\-shooter Instrument Pipeline
Copyright (C) 2006 European Southern Observatory

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, 
MA  02111\-1307  USA
