<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <!--Converted with LaTeX2HTML 98.1p1 release (March 2nd, 1998) originally by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds * revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan * with significant contributions from: Jens Lippmann, Marek Rouchal, Martin Wilck and others --> <HTML> <HEAD> <TITLE>Input Data</TITLE> <META NAME="description" CONTENT="Input Data"> <META NAME="keywords" CONTENT="vol2"> <META NAME="resource-type" CONTENT="document"> <META NAME="distribution" CONTENT="global"> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <LINK REL="STYLESHEET" HREF="vol2.css"> <LINK REL="next" HREF="node457.html"> <LINK REL="previous" HREF="node455.html"> <LINK REL="up" HREF="node455.html"> <LINK REL="next" HREF="node457.html"> </HEAD> <BODY > <!--Navigation Panel--> <A NAME="tex2html7152" HREF="node457.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="icons.gif/next_motif.gif"></A> <A NAME="tex2html7149" HREF="node455.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="icons.gif/up_motif.gif"></A> <A NAME="tex2html7143" HREF="node455.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="icons.gif/previous_motif.gif"></A> <A NAME="tex2html7151" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="icons.gif/contents_motif.gif"></A> <BR> <B> Next:</B> <A NAME="tex2html7153" HREF="node457.html">Auxiliary Data</A> <B> Up:</B> <A NAME="tex2html7150" HREF="node455.html">Echelle Reduction</A> <B> Previous:</B> <A NAME="tex2html7144" HREF="node455.html">Echelle Reduction</A> <BR> <BR> <!--End of Navigation Panel--> <H1><A NAME="SECTION002710000000000000000"> </A> <A NAME="echelle-input-data"> </A> <BR> Input Data </H1> <P> The information involved in a reduction session consists of user data and system tables. User data is a set of echelle images observed with the same instrument configuration, corresponding to a wavelength calibration image (<TT>WLC</TT>), a flat field image (<TT>FLAT</TT>) and astronomical objects. Optionally, this set will include the standard stars (<TT>STD</TT>) to be used in the absolute or relative flux calibration, and dark images (<TT>DARK</TT>). <P> <BR><HR> <ADDRESS> <I>Petra Nass</I> <BR><I>1999-06-15</I> </ADDRESS> </BODY> </HTML>
