<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Time correction (dialog) — C-Munipack 2.0.8 documentation</title>
<link rel="stylesheet" href="_static/default.css" type="text/css" />
<link rel="stylesheet" href="_static/pygments.css" type="text/css" />
<script type="text/javascript">
var DOCUMENTATION_OPTIONS = {
URL_ROOT: '',
VERSION: '2.0.8',
COLLAPSE_INDEX: false,
FILE_SUFFIX: '.html',
HAS_SOURCE: true
};
</script>
<script type="text/javascript" src="_static/jquery.js"></script>
<script type="text/javascript" src="_static/underscore.js"></script>
<script type="text/javascript" src="_static/doctools.js"></script>
<link rel="top" title="C-Munipack 2.0.8 documentation" href="index.html" />
<link rel="up" title="Dialogs and tools" href="dialogs.html" />
<link rel="next" title="Track curve (dialog)" href="track_curve_dialog.html" />
<link rel="prev" title="Thumbnails (dialog)" href="thumbnails_dialog.html" />
</head>
<body>
<div class="related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="genindex.html" title="General Index"
accesskey="I">index</a></li>
<li class="right" >
<a href="track_curve_dialog.html" title="Track curve (dialog)"
accesskey="N">next</a> |</li>
<li class="right" >
<a href="thumbnails_dialog.html" title="Thumbnails (dialog)"
accesskey="P">previous</a> |</li>
<li><a href="index.html">C-Munipack 2.0.8 documentation</a> »</li>
<li><a href="using_muniwin.html" >Using Muniwin</a> »</li>
<li><a href="dialogs.html" accesskey="U">Dialogs and tools</a> »</li>
</ul>
</div>
<div class="document">
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body">
<div class="section" id="time-correction-dialog">
<span id="index-0"></span><span id="id1"></span><h1>Time correction (dialog)<a class="headerlink" href="#time-correction-dialog" title="Permalink to this headline">¶</a></h1>
<p>The “Time correction” dialog is used to fix the date and time observation of the source files
in case the computer time was misaligned to the real time during the observation.</p>
<div class="section" id="activating-the-dialog">
<h2>Activating the dialog<a class="headerlink" href="#activating-the-dialog" title="Permalink to this headline">¶</a></h2>
<p>The dialog can be activated:</p>
<ol class="arabic simple">
<li>from the main menu: <em class="menuselection">Reduce ‣ Time correction</em>.</li>
<li>from the main toolbar: <img alt="timecorr_icon" src="_images/timecorr.png" /></li>
</ol>
</div>
<div class="section" id="specifying-the-time-shift">
<h2>Specifying the time shift<a class="headerlink" href="#specifying-the-time-shift" title="Permalink to this headline">¶</a></h2>
<div class="figure align-center">
<img alt="Time correction dialog" src="_images/timecorr_couts.png" />
<p class="caption">The dialog for specifying the time shift</p>
</div>
<p>There are three possibilities how to specify the time shift: constant number of seconds, days
or difference between two dates.</p>
<p>To change time of observation by a constant number of second, check the first option (1)
and enter the number of seconds to the text box (2). The value should be always positive, here (3)
you can specify if the time shall be shifted either to the future or to the past.</p>
<p>To change date of observation by a constant number of days, check on the second option (4)
and enter the number of seconds to the text box (5). The value should be always positive, here (3)
you can specify if the date shall be shifted either to the future or to the past.</p>
<p>The third option (6) provides more elaborate control over the time shift. You are expected
to specify a pair of dates. The first one is the original (bad) date (7), the second one is the new
(correct) date (8). The difference between these two dates gives a time shift, that will be applied
to all frames. It is not required that the specified original date corresponds to a source frame.</p>
<p>(9) It is possible to apply the operation on all source files in the project or
on the files that are currently selected in the table of input files. By means of this option,
it is possible to apply a correction to a subset of source files only.</p>
</div>
<div class="section" id="applying-the-time-correction">
<span id="index-1"></span><h2>Applying the time correction<a class="headerlink" href="#applying-the-time-correction" title="Permalink to this headline">¶</a></h2>
<p>Click the “Execute” button (10) to start the operation. The time correction is applied to a working
copy of source files.</p>
<ul class="simple">
<li>A working copy of source frame must be made before the time correction.</li>
<li>The time correction can be applied several times to a frame, effect of this function is cumulative.</li>
<li>The time correction must be applied before the photometry.</li>
</ul>
<p>If you make a mistake, you can revoke the step by making a fresh copy of source frames
by means of the “Fetch/convert files” function.</p>
<div class="admonition-see-also admonition seealso">
<p class="first admonition-title">See also</p>
<p class="last"><a class="reference internal" href="main_window.html#main-window"><em>Main window</em></a>, <a class="reference internal" href="express_reduction_dialog.html#express-reduction-dialog"><em>Express reduction (dialog)</em></a></p>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="sphinxsidebar">
<div class="sphinxsidebarwrapper">
<h3><a href="index.html">Table Of Contents</a></h3>
<ul>
<li><a class="reference internal" href="#">Time correction (dialog)</a><ul>
<li><a class="reference internal" href="#activating-the-dialog">Activating the dialog</a></li>
<li><a class="reference internal" href="#specifying-the-time-shift">Specifying the time shift</a></li>
<li><a class="reference internal" href="#applying-the-time-correction">Applying the time correction</a></li>
</ul>
</li>
</ul>
<h4>Previous topic</h4>
<p class="topless"><a href="thumbnails_dialog.html"
title="previous chapter">Thumbnails (dialog)</a></p>
<h4>Next topic</h4>
<p class="topless"><a href="track_curve_dialog.html"
title="next chapter">Track curve (dialog)</a></p>
<div id="searchbox" style="display: none">
<h3>Quick search</h3>
<form class="search" action="search.html" method="get">
<input type="text" name="q" />
<input type="submit" value="Go" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
<p class="searchtip" style="font-size: 90%">
Enter search terms or a module, class or function name.
</p>
</div>
<script type="text/javascript">$('#searchbox').show(0);</script>
</div>
</div>
<div class="clearer"></div>
</div>
<div class="related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="genindex.html" title="General Index"
>index</a></li>
<li class="right" >
<a href="track_curve_dialog.html" title="Track curve (dialog)"
>next</a> |</li>
<li class="right" >
<a href="thumbnails_dialog.html" title="Thumbnails (dialog)"
>previous</a> |</li>
<li><a href="index.html">C-Munipack 2.0.8 documentation</a> »</li>
<li><a href="using_muniwin.html" >Using Muniwin</a> »</li>
<li><a href="dialogs.html" >Dialogs and tools</a> »</li>
</ul>
</div>
<div class="footer">
© Copyright 2012, David Motl.
Created using <a href="http://sphinx.pocoo.org/">Sphinx</a> 1.1.3.
</div>
</body>
</html>
