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<H2><A NAME="SECTION003043000000000000000">
Performing Batch Reduction</A>
</H2>
<P>
The Batch Reduction window allows catalogs of observations to be processed
and a data reduction scheme to be defined dynamically. The different steps
like Bias, Dark, Flat-Field correction, <I>etc.</I> are optional and must be set
by clicking on the option buttons located on the left side of the window.
The option button turns green when selected.
<P>
For each selected reduction step, the corresponding parameters must be
provided, as indicated in the short help section. These parameters
can be saved in a parameters file and be restored later, using
the
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pulldown menu.
<P>
The text fields associated to images, tables or catalogs allow a selection
list to be displayed using the right-hand mouse button. Clicking over
the desired name updates the corresponding field.
<P>
The input files can be given in two ways:
<P>
<UL>
<LI>Catalog name: by providing a catalog name in the field
<B>Prefix/Catalog</B>
<LI>Image numbers: by indicating the prefix of the images
in the field <B>Prefix/Catalog</B> and providing the image numbers
in the field <B>Numbers</B>, using dashes and/or commas. as in: <BR>
<B>Prefix/Catalog</B> : red <BR>
<B>Numbers:</B> 3-5,8 <BR>
In this example, the images <B>red0003, red0004, red0005, red0008</B>
will be processed.
</UL>
<P>
The dialog form accessed by pressing "Airmass ..." allows to
modify the airmass values of the input images. If any of
the input images do not have the corresponding airmass descriptor,
the airmass dialog form is displayed automatically. The
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button allows the modification of the
airmass values of the input images. The
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button executes the batch reduction.
<P>
<BR>
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<BR>
<BR>
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<BR>
<BR>
<DIV ALIGN="CENTER"><A NAME="fig:xbatch"> </A><A NAME="28075"> </A>
<TABLE WIDTH="50%">
<CAPTION><STRONG>Figure G.9:</STRONG>
Batch Reduction window</CAPTION>
<TR><TD></TD></TR>
</TABLE>
</DIV>
<BR>
<P>
=01 =11 =1991
<P>
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<ADDRESS>
<I>Petra Nass</I>
<BR><I>1999-06-15</I>
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