1meanbias(1)                     C-Munipack 1.2                     meanbias(1)
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NAME

6       meanbias - utility for making master-bias frames
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SYNOPSIS

9       meanbias [ options ] output-file input-files ...
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DESCRIPTION

12       The  meanbias  command  compose a set of bias frames and makes one bias
13       frame called ´master-bias´. Applying this  function,  you  can  achieve
14       high  quality  correction  frame  and     thus  reducing the noise of a
15       result. The bias correction is applied in advanced  calibration  scheme
16       only,  please  refer  to  documentation  about  the  calibration of CCD
17       frames.
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19       All source frames must be in the FITS format and  of  same  dimensions.
20       The output file is written in the FITS format too.
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INPUT FILES

23       Names  of  input  files  can be specified directly on a command-line as
24       command arguments; it is allowed to use the usual wildcard notation. In
25       case the input files are placed outside the working directory, you have
26       to specify the proper path relative to the current working directory.
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28       Alternatively, you can also prepare a list of input  file  names  in  a
29       text file, each input file on a separate line. It is not allowed to use
30       the wildcard notation here. Use the -i option to instruct  the  program
31       to read the file.
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OPTIONS

34       Options  are  used to provide extra information to customize the execu‐
35       tion of a command. They are specified as command arguments.
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37       Each option has a full form starting with two dashes  and  an  optional
38       short  form starting with one dash only. Options are case-sensitive. It
39       is allowed to merge two or more successive short options together. Some
40       options  require  a  value; in this case a value is taken from a subse‐
41       quent argument. When a full form is used, an option and its  value  can
42       also  be  separated  by  an  equal sign. When a short form is used, its
43       value can immediately follow the option.
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45       Whenever there is a conflict between a configuration file parameter and
46       an option of the same meaning, the option always take precedence.
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48       -s, --set name=value
49              set value of configuration parameter
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51       -i, --read-dirfile filepath
52              read  list of input files from specified directory file; see the
53              Files section for details.
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55       -p, --configuration-file filepath
56              read parameters from given configuration file. See the  Configu‐
57              ration file section for details.
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59       -h, --help
60              print list of command-line parameters
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62       -q, --quiet
63              quiet mode; suppress all messages
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65       --version
66              print software version string
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68       --licence
69              print software licence
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71       --verbose
72              verbose mode; print debug messages
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CONFIGURATION FILE

75       Configuration files are used to set the input parameters to the process
76       that is going to be executed  by  a  command.  Use  the  -p  option  to
77       instruct the program to read the file before other command-line options
78       are processed.
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80       The configuration file consists of a set of parameters stored in a text
81       file.  Each  parameter  is  stored  on a separate line in the following
82       form: name = value, all other lines  are  silently  ignored.  Parameter
83       names are case-sensitive.
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85       bitpix = value
86              output data format (0=Auto)
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EXAMPLES

89       meanbias out.fts in1.fts in2.fts in3.fts
90              The  command computes the master-bias frame from the input files
91              in1.fts, in2.fts a in3.fts; the resulting  frame  is  stored  to
92              output file out.fts.
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EXIT STATUS

95       The  command  returns  a zero exit status if it succeeds to process all
96       specified files. Otherwise, it will  stop  immediately  when  an  error
97       occurs and a nonzero error code is returned.
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HOME PAGE

100       http://c-munipack.sourceforge.net/
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BUG REPORTS

103       David Motl, dmotl@volny.cz
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COPYING

106       This program is free software; you can redistribute it and/or modify it
107       under the terms of the GNU General Public License  version  2  as  pub‐
108       lished by the Free Software Foundation.
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110       This  program  is  distributed  in the hope that it will be useful, but
111       WITHOUT ANY  WARRANTY;  without  even  the  implied  warranty  of  MER‐
112       CHANTABILITY  or  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
113       Public License for more details.
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SEE ALSO

116       cmunipack(3), muniwin(1), meandark(1), autoflat(1),  biasbat(1),  dark‐
117       bat(1),  flatbat(1),  timebat(1),  airmass(1),  helcor(1),  kombine(1),
118       konve(1), muniphot(1), munimatch(1), munilist(1)
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122version 1.2.10                   May 16, 2010                      meanbias(1)