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diff --git a/src/slalib/sun67.htx/node29.html b/src/slalib/sun67.htx/node29.html new file mode 100644 index 0000000..f831e5a --- /dev/null +++ b/src/slalib/sun67.htx/node29.html @@ -0,0 +1,140 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> +<!--Converted with LaTeX2HTML 97.1 (release) (July 13th, 1997) + 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 Lippman, Marek Rouchal, Martin Wilck and others --> +<HTML> +<HEAD> +<TITLE>SLA_CALYD - Calendar to Year, Day</TITLE> +<META NAME="description" CONTENT="SLA_CALYD - Calendar to Year, Day"> +<META NAME="keywords" CONTENT="sun67"> +<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="sun67.css"> +<LINK REL="next" HREF="node30.html"> +<LINK REL="previous" HREF="node28.html"> +<LINK REL="up" HREF="node13.html"> +<LINK REL="next" HREF="node30.html"> +</HEAD> +<BODY > +<BR> <HR> +<A NAME="tex2html716" HREF="node30.html"> +<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next_motif.gif"></A> +<A NAME="tex2html714" HREF="node13.html"> +<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up_motif.gif"></A> +<A NAME="tex2html708" HREF="node28.html"> +<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="previous_motif.gif"></A> <A HREF="sun67.html#stardoccontents"><IMG ALIGN="BOTTOM" BORDER="0" + SRC="contents_motif.gif"></A> +<BR> +<B> Next:</B> <A NAME="tex2html717" HREF="node30.html">SLA_CC2S - Cartesian to Spherical</A> +<BR> +<B>Up:</B> <A NAME="tex2html715" HREF="node13.html">SUBPROGRAM SPECIFICATIONS</A> +<BR> +<B> Previous:</B> <A NAME="tex2html709" HREF="node28.html">SLA_CALDJ - Calendar Date to MJD</A> +<BR> <HR> <P> +<P><!--End of Navigation Panel--> +<H2><A NAME="SECTION000416000000000000000">SLA_CALYD - Calendar to Year, Day</A> +<A NAME="xref_SLA_CALYD"> </A><A NAME="SLA_CALYD"> </A> +</H2> + <DL> +<DT><STRONG>ACTION:</STRONG> +<DD>Gregorian calendar date to year and day in year, in a Julian +calendar aligned to the 20th/21st century Gregorian calendar, + with century default. +<P> <DT><STRONG>CALL:</STRONG> +<DD><TT>CALL sla_CALYD (IY, IM, ID, NY, ND, J)</TT> +<P> </DL> +<P> <DL> +<DT><STRONG>GIVEN:</STRONG> +<DD> +<BR> +<TABLE CELLPADDING=3> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>IY,IM,ID</EM></TD> +<TH ALIGN="LEFT"><B>I</B></TH> +<TD ALIGN="LEFT" NOWRAP>year, month, day in Gregorian calendar: +year may optionally omit the century</TD> +</TR> +</TABLE></DL> +<P> <DL> +<DT><STRONG>RETURNED:</STRONG> +<DD> +<BR> +<TABLE CELLPADDING=3> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>NY</EM></TD> +<TH ALIGN="LEFT"><B>I</B></TH> +<TD ALIGN="LEFT" NOWRAP>year (re-aligned Julian calendar)</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>ND</EM></TD> +<TD ALIGN="LEFT"><B>I</B></TD> +<TD ALIGN="LEFT" NOWRAP>day in year (1 = January 1st)</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>J</EM></TD> +<TD ALIGN="LEFT"><B>I</B></TD> +<TD ALIGN="LEFT" NOWRAP>status:</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM></EM></TD> +<TD ALIGN="LEFT"><B></B></TD> +<TD ALIGN="LEFT" NOWRAP> 0 = OK</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM></EM></TD> +<TD ALIGN="LEFT"><B></B></TD> +<TD ALIGN="LEFT" NOWRAP> 1 = bad year (before -4711)</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM></EM></TD> +<TD ALIGN="LEFT"><B></B></TD> +<TD ALIGN="LEFT" NOWRAP> 2 = bad month</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM></EM></TD> +<TD ALIGN="LEFT"><B></B></TD> +<TD ALIGN="LEFT" NOWRAP> 3 = bad day</TD> +</TR> +</TABLE></DL> +<P> <DL> +<DT><STRONG>NOTES:</STRONG> +<DD><DL COMPACT> +<DT>1. +<DD>This routine supports the <I>century default</I> feature. +Acceptable years are: +<UL> +<LI> 00-49, interpreted as 2000-2049, +<LI> 50-99, interpreted as 1950-1999, and +<LI> other years after -4712 , interpreted literally. + </UL> + Use sla_CLYD for years before 100AD. + <DT>2. +<DD>The purpose of sla_CALDJ is to support + sla_EARTH, sla_MOON and sla_ECOR. + <DT>3. +<DD>Between 1900 March 1 and 2100 February 28 it returns answers + which are consistent with the ordinary Gregorian calendar. + Outside this range there will be a discrepancy which increases + by one day for every non-leap century year. + <DT>4. +<DD>When an invalid year or month is supplied (status J = 1 or J = 2) + the results are <B>not</B> computed. When a day is + supplied which is outside the conventional range (status J = 3) + the results <B>are</B> computed. + </DL></DL> +<BR> <HR> +<A NAME="tex2html716" HREF="node30.html"> +<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next_motif.gif"></A> +<A NAME="tex2html714" HREF="node13.html"> +<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up_motif.gif"></A> +<A NAME="tex2html708" HREF="node28.html"> +<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="previous_motif.gif"></A> <A HREF="sun67.html#stardoccontents"><IMG ALIGN="BOTTOM" BORDER="0" + SRC="contents_motif.gif"></A> +<BR> +<B> Next:</B> <A NAME="tex2html717" HREF="node30.html">SLA_CC2S - Cartesian to Spherical</A> +<BR> +<B>Up:</B> <A NAME="tex2html715" HREF="node13.html">SUBPROGRAM SPECIFICATIONS</A> +<BR> +<B> Previous:</B> <A NAME="tex2html709" HREF="node28.html">SLA_CALDJ - Calendar Date to MJD</A> +<BR> <HR> <P> +<P><!--End of Navigation Panel--> +<ADDRESS> +<I>SLALIB --- Positional Astronomy Library<BR>Starlink User Note 67<BR>P. T. Wallace<BR>12 October 1999<BR>E-mail:ptw@star.rl.ac.uk</I> +</ADDRESS> +</BODY> +</HTML> |