<!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>Instrument descriptors</TITLE> <META NAME="description" CONTENT="Instrument descriptors"> <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="node619.html"> <LINK REL="previous" HREF="node608.html"> <LINK REL="up" HREF="node605.html"> <LINK REL="next" HREF="node615.html"> </HEAD> <BODY > <!--Navigation Panel--> <A NAME="tex2html9192" HREF="node615.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="icons.gif/next_motif.gif"></A> <A NAME="tex2html9189" HREF="node605.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="icons.gif/up_motif.gif"></A> <A NAME="tex2html9183" HREF="node613.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="icons.gif/previous_motif.gif"></A> <A NAME="tex2html9191" 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="tex2html9193" HREF="node615.html">Filter descriptors</A> <B> Up:</B> <A NAME="tex2html9190" HREF="node605.html">Instrument configuration and run-specific</A> <B> Previous:</B> <A NAME="tex2html9184" HREF="node613.html">Columns REDLEAK, RLTYPE, and</A> <BR> <BR> <!--End of Navigation Panel--> <H2><A NAME="SECTION003254000000000000000"> Instrument descriptors</A> </H2> Properties of the instrument that are associated with the instrument as a whole, rather than with a particular filter or detector channel, belong in descriptors in the instrument table file. Most of these relate to the filter mechanisms. In addition, it is convenient to have a character*72 descriptor called <B>INSTNAM</B> that gives the name or designation of the particular instrument; and one to describe the condition of the telescope optics, which will be treated at the end of this section. The descriptors are summarized in Table <A HREF="node618.html#tbl:instr-descriptors">I.11</A>. <P> <BR><HR> <!--Table of Child-Links--> <A NAME="CHILD_LINKS"> </A> <UL> <LI><A NAME="tex2html9194" HREF="node615.html">Filter descriptors</A> <LI><A NAME="tex2html9195" HREF="node616.html">Descriptor <B>NFILTCAR</B></A> <LI><A NAME="tex2html9196" HREF="node617.html">Character descriptor FILTCAT</A> <LI><A NAME="tex2html9197" HREF="node618.html">Character descriptor FILTSTAT</A> </UL> <!--End of Table of Child-Links--> <BR><HR> <ADDRESS> <I>Petra Nass</I> <BR><I>1999-06-15</I> </ADDRESS> </BODY> </HTML>
