<!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>Column label: TUBELEN</TITLE> <META NAME="description" CONTENT="Column label: TUBELEN"> <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="node578.html"> <LINK REL="previous" HREF="node576.html"> <LINK REL="up" HREF="node569.html"> <LINK REL="next" HREF="node578.html"> </HEAD> <BODY > <!--Navigation Panel--> <A NAME="tex2html8724" HREF="node578.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="icons.gif/next_motif.gif"></A> <A NAME="tex2html8721" HREF="node569.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="icons.gif/up_motif.gif"></A> <A NAME="tex2html8715" HREF="node576.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="icons.gif/previous_motif.gif"></A> <A NAME="tex2html8723" 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="tex2html8725" HREF="node578.html">Column label: DOMETYPE</A> <B> Up:</B> <A NAME="tex2html8722" HREF="node569.html">Permanent telescope parameters</A> <B> Previous:</B> <A NAME="tex2html8716" HREF="node576.html">Column label: TUBEDIAM</A> <BR> <BR> <!--End of Navigation Panel--> <H2><A NAME="SECTION003238000000000000000"> Column label: TUBELEN</A> </H2> <P> If TUBETYPE is '<TT>OPEN</TT>', ignore this field. <P> If TUBETYPE is '<TT>CLOSED</TT>', TUBELEN should contain the length (in meters) of the telescope tube (or dewcap, if a refractor), measured from the front edge of the objective to the front end of the tube (or dewcap). Thus, for a reflector, TUBELEN is just the length of the telescope tube measured from the front surface of the primary mirror. For a refractor, it is the effective length of the dewcap. <P> <BR><HR> <ADDRESS> <I>Petra Nass</I> <BR><I>1999-06-15</I> </ADDRESS> </BODY> </HTML>
