The xsh_mbias recipe =============================================================== .. data:: xsh_mbias Synopsis -------- Create the master bias frame Description ----------- This recipe creates a master bias frame by computing the median of all input bias frames. Input Frames : - A set of n RAW frames (Format=RAW, n >=3, Tag = BIAS_arm) - [OPTIONAL] A map of non linear bad pixels (Format=QUP, Tag = BP_MAP_NL_arm) - [OPTIONAL] A map of reference bad pixels (Format = QUP,RAW, Tag = BP_MAP_RP_arm) Products : - A master bias frame (Format=PRE, PRO.CATG = MASTER_BIAS_arm) Constructor ----------- .. method:: cpl.Recipe("xsh_mbias") :noindex: Create an object for the recipe xsh_mbias. :: import cpl xsh_mbias = cpl.Recipe("xsh_mbias") Parameters ---------- .. py:attribute:: xsh_mbias.param.keep_temp If 'no', temporary files are deleted. (str; default: 'no') [default="no"]. .. py:attribute:: xsh_mbias.param.debug_level Additional xshooter debug level. One of 'none', 'low', 'medium', 'high' (str; default: 'none') [default="none"]. .. py:attribute:: xsh_mbias.param.time_stamp Add timestamp to product file name. (bool; default: False) [default=False]. .. py:attribute:: xsh_mbias.param.decode_bp Integer representation of the bits to be considered bad when decoding the bad pixel mask pixel values. Most frequent codes relevant for the user: 0: good pixel, 8: pick-up noise, 16: cosmic-ray removed, 32: cosmic-ray unremoved, 128: calibration file defect, 256: hot pixel, 512: dark pixel, 4096: A/D converted saturation, 32768: non linear pixel, 1048576: extrapolated flux in NIR, 4194304: Interpolated flux during extraction. (int; default: 2144337919) [default=2144337919]. .. py:attribute:: xsh_mbias.param.stack_method Method used to build master frame. (str; default: 'median') [default="median"]. .. py:attribute:: xsh_mbias.param.klow Kappa used to clip low level values, when method is set to 'mean' (float; default: 5.0) [default=5.0]. .. py:attribute:: xsh_mbias.param.khigh Kappa used to clip high level values, when method is set to 'mean' (float; default: 5.0) [default=5.0]. .. py:attribute:: xsh_mbias.param.fpn_llx Lower left reference area X coordinate for Fixed Pattern Noise computation (int; default: 10) [default=10]. .. py:attribute:: xsh_mbias.param.fpn_lly Lower left reference area Y coordinate for Fixed Pattern Noise computation (int; default: 10) [default=10]. .. py:attribute:: xsh_mbias.param.fpn_urx Upper right reference area X coordinate for Fixed Pattern Noise computation (int; default: 1024) [default=1024]. .. py:attribute:: xsh_mbias.param.fpn_ury Upper right reference area Y coordinate for Fixed Pattern Noise computation (int; default: 1024) [default=1024]. .. py:attribute:: xsh_mbias.param.fpn_hsize Sample size for Fixed Pattern Noise computation (int; default: 10) [default=10]. .. py:attribute:: xsh_mbias.param.fpn_nsamples Number of sampling points for Fixed Pattern Noise computation (int; default: 100) [default=100]. .. py:attribute:: xsh_mbias.param.ron_method RON computation method (str; default: 'ALL') [default="ALL"]. .. py:attribute:: xsh_mbias.param.random_sizex Region X size for random computation (int; default: 10) [default=10]. .. py:attribute:: xsh_mbias.param.random_nsamples Number of random samples (int; default: 100) [default=100]. .. py:attribute:: xsh_mbias.param.ref1_llx Lower left X of reference region (int; default: -1) [default=-1]. .. py:attribute:: xsh_mbias.param.ref1_lly Lower left Y of reference region (int; default: -1) [default=-1]. .. py:attribute:: xsh_mbias.param.ref1_urx Upper right X of reference region (int; default: -1) [default=-1]. .. py:attribute:: xsh_mbias.param.ref1_ury Upper right Y of reference region (int; default: -1) [default=-1]. .. py:attribute:: xsh_mbias.param.ref2_llx Lower left X of reference region (int; default: -1) [default=-1]. .. py:attribute:: xsh_mbias.param.ref2_lly Lower left Y of reference region (int; default: -1) [default=-1]. .. py:attribute:: xsh_mbias.param.ref2_urx Upper right X of reference region (int; default: -1) [default=-1]. .. py:attribute:: xsh_mbias.param.ref2_ury Upper right Y of reference region (int; default: -1) [default=-1]. .. py:attribute:: xsh_mbias.param.stacking_ks_low Lower value of kappa-sigma clip in stacking (int; default: 3) [default=3]. .. py:attribute:: xsh_mbias.param.stacking_ks_iter Number of iterations in kappa-sigma clip in stacking (int; default: 25) [default=25]. .. py:attribute:: xsh_mbias.param.struct_refx Reference X value to compute structure (int; default: -1) [default=-1]. .. py:attribute:: xsh_mbias.param.struct_refy Reference Y value to compute structure (int; default: -1) [default=-1]. .. py:attribute:: xsh_mbias.param.pd_noise_compute Determine Fixed Pattern Noise. If TRUE the Fixed Pattern Noise power spectrum is determined. (bool; default: False) [default=False]. .. py:attribute:: xsh_mbias.param.pd_noise_dc_x x-size (pixel) of the mask starting at (x,y) = (1,1). (int; default: 1) [default=1]. .. py:attribute:: xsh_mbias.param.pd_noise_dc_y y-size (pixel) of the mask starting at (x,y) = (1,1). (int; default: 1) [default=1]. The following code snippet shows the default settings for the available parameters. :: import cpl xsh_mbias = cpl.Recipe("xsh_mbias") xsh_mbias.param.keep_temp = "no" xsh_mbias.param.debug_level = "none" xsh_mbias.param.time_stamp = False xsh_mbias.param.decode_bp = 2144337919 xsh_mbias.param.stack_method = "median" xsh_mbias.param.klow = 5.0 xsh_mbias.param.khigh = 5.0 xsh_mbias.param.fpn_llx = 10 xsh_mbias.param.fpn_lly = 10 xsh_mbias.param.fpn_urx = 1024 xsh_mbias.param.fpn_ury = 1024 xsh_mbias.param.fpn_hsize = 10 xsh_mbias.param.fpn_nsamples = 100 xsh_mbias.param.ron_method = "ALL" xsh_mbias.param.random_sizex = 10 xsh_mbias.param.random_nsamples = 100 xsh_mbias.param.ref1_llx = -1 xsh_mbias.param.ref1_lly = -1 xsh_mbias.param.ref1_urx = -1 xsh_mbias.param.ref1_ury = -1 xsh_mbias.param.ref2_llx = -1 xsh_mbias.param.ref2_lly = -1 xsh_mbias.param.ref2_urx = -1 xsh_mbias.param.ref2_ury = -1 xsh_mbias.param.stacking_ks_low = 3 xsh_mbias.param.stacking_ks_iter = 25 xsh_mbias.param.struct_refx = -1 xsh_mbias.param.struct_refy = -1 xsh_mbias.param.pd_noise_compute = False xsh_mbias.param.pd_noise_dc_x = 1 xsh_mbias.param.pd_noise_dc_y = 1 You may also set or overwrite some or all parameters by the recipe parameter `param`, as shown in the following example: :: import cpl xsh_mbias = cpl.Recipe("xsh_mbias") [...] res = xsh_mbias( ..., param = {"keep_temp":"no", "debug_level":"none"}) .. seealso:: `cpl.Recipe `_ for more information about the recipe object. Bug reports ----------- Please report any problems to `P.Goldoni, L.Guglielmi, R. Haigron, F. Royer, D. Bramich, A. Modigliani `_. Alternatively, you may send a report to the `ESO User Support Department `_. Copyright --------- 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 .. codeauthor:: P.Goldoni, L.Guglielmi, R. Haigron, F. Royer, D. Bramich, A. Modigliani