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diff --git a/src/slalib/sun67.htx/node148.html b/src/slalib/sun67.htx/node148.html new file mode 100644 index 0000000..70ca411 --- /dev/null +++ b/src/slalib/sun67.htx/node148.html @@ -0,0 +1,256 @@ +<!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_PLANTE - of Planet from Elements</TITLE> +<META NAME="description" CONTENT="SLA_PLANTE - of Planet from Elements"> +<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="node149.html"> +<LINK REL="previous" HREF="node147.html"> +<LINK REL="up" HREF="node13.html"> +<LINK REL="next" HREF="node149.html"> +</HEAD> +<BODY > +<BR> <HR> +<A NAME="tex2html1906" HREF="node149.html"> +<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next_motif.gif"></A> +<A NAME="tex2html1904" HREF="node13.html"> +<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up_motif.gif"></A> +<A NAME="tex2html1898" HREF="node147.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="tex2html1907" HREF="node149.html">SLA_PM - Proper Motion</A> +<BR> +<B>Up:</B> <A NAME="tex2html1905" HREF="node13.html">SUBPROGRAM SPECIFICATIONS</A> +<BR> +<B> Previous:</B> <A NAME="tex2html1899" HREF="node147.html">SLA_PLANET - Planetary Ephemerides</A> +<BR> <HR> <P> +<P><!--End of Navigation Panel--> +<H2><A NAME="SECTION0004135000000000000000"> </A><A NAME="xref_SLA_PLANTE"> </A><A NAME="SLA_PLANTE"> </A> +<BR> +SLA_PLANTE - <IMG WIDTH="42" HEIGHT="29" ALIGN="MIDDLE" BORDER="0" + SRC="img3.gif" + ALT="$[\,\alpha,\delta\,]$"> of Planet from Elements +</H2> + <DL> +<DT><STRONG>ACTION:</STRONG> +<DD>Topocentric apparent <IMG WIDTH="42" HEIGHT="29" ALIGN="MIDDLE" BORDER="0" + SRC="img3.gif" + ALT="$[\,\alpha,\delta\,]$"> of a Solar-System object whose +heliocentric orbital elements are known. +<P> <DT><STRONG>CALL:</STRONG> +<DD><TT>CALL sla_PLANTE ( + DATE, ELONG, PHI, JFORM, EPOCH, ORBINC, ANODE, PERIH, + AORQ, E, AORL, DM, RA, DEC, R, JSTAT)</TT> +<P> </DL> +<P> <DL> +<DT><STRONG>GIVEN:</STRONG> +<DD> +<BR> +<TABLE CELLPADDING=3> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>DATE</EM></TD> +<TH ALIGN="LEFT"><B>D</B></TH> +<TD ALIGN="LEFT" NOWRAP>MJD of observation (JD-2400000.5)</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>ELONG,PHI</EM></TD> +<TD ALIGN="LEFT"><B>D</B></TD> +<TD ALIGN="LEFT" NOWRAP>observer's longitude (east +ve) and latitude</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM></EM></TD> +<TD ALIGN="LEFT"><B></B></TD> +<TD ALIGN="LEFT" NOWRAP> radians)</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>JFORM</EM></TD> +<TD ALIGN="LEFT"><B>I</B></TD> +<TD ALIGN="LEFT" NOWRAP>choice of element set (1-3, see Note 4, below)</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>EPOCH</EM></TD> +<TD ALIGN="LEFT"><B>D</B></TD> +<TD ALIGN="LEFT" NOWRAP>epoch of elements (<I>t<SUB>0</SUB></I> or <I>T</I>, TT MJD)</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>ORBINC</EM></TD> +<TD ALIGN="LEFT"><B>D</B></TD> +<TD ALIGN="LEFT" NOWRAP>inclination (<I>i</I>, radians)</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>ANODE</EM></TD> +<TD ALIGN="LEFT"><B>D</B></TD> +<TD ALIGN="LEFT" NOWRAP>longitude of the ascending node (<IMG WIDTH="14" HEIGHT="13" ALIGN="BOTTOM" BORDER="0" + SRC="img99.gif" + ALT="$\Omega$">, radians)</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>PERIH</EM></TD> +<TD ALIGN="LEFT"><B>D</B></TD> +<TD ALIGN="LEFT" NOWRAP>longitude or argument of perihelion +(<IMG WIDTH="16" HEIGHT="14" ALIGN="BOTTOM" BORDER="0" + SRC="img100.gif" + ALT="$\varpi$"> or <IMG WIDTH="13" HEIGHT="14" ALIGN="BOTTOM" BORDER="0" + SRC="img101.gif" + ALT="$\omega$">,</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM></EM></TD> +<TD ALIGN="LEFT"><B></B></TD> +<TD ALIGN="LEFT" NOWRAP> radians)</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>AORQ</EM></TD> +<TD ALIGN="LEFT"><B>D</B></TD> +<TD ALIGN="LEFT" NOWRAP>mean distance or perihelion distance (<I>a</I> or <I>q</I>, AU)</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>E</EM></TD> +<TD ALIGN="LEFT"><B>D</B></TD> +<TD ALIGN="LEFT" NOWRAP>eccentricity (<I>e</I>)</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>AORL</EM></TD> +<TD ALIGN="LEFT"><B>D</B></TD> +<TD ALIGN="LEFT" NOWRAP>mean anomaly or longitude (<I>M</I> or <I>L</I>,</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM></EM></TD> +<TD ALIGN="LEFT"><B></B></TD> +<TD ALIGN="LEFT" NOWRAP> radians, JFORM=1,2 only)</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>DM</EM></TD> +<TD ALIGN="LEFT"><B>D</B></TD> +<TD ALIGN="LEFT" NOWRAP>daily motion (<I>n</I>, radians, JFORM=1 only)</TD> +</TR> +</TABLE></DL> +<P> <DL> +<DT><STRONG>RETURNED:</STRONG> +<DD> +<BR> +<TABLE CELLPADDING=3> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>RA,DEC</EM></TD> +<TH ALIGN="LEFT"><B>D</B></TH> +<TD ALIGN="LEFT" NOWRAP>topocentric apparent <IMG WIDTH="42" HEIGHT="29" ALIGN="MIDDLE" BORDER="0" + SRC="img3.gif" + ALT="$[\,\alpha,\delta\,]$"> (radians)</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>R</EM></TD> +<TD ALIGN="LEFT"><B>D</B></TD> +<TD ALIGN="LEFT" NOWRAP>distance from observer (AU)</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM>JSTAT</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 = illegal JFORM</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM></EM></TD> +<TD ALIGN="LEFT"><B></B></TD> +<TD ALIGN="LEFT" NOWRAP> -2 = illegal E</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM></EM></TD> +<TD ALIGN="LEFT"><B></B></TD> +<TD ALIGN="LEFT" NOWRAP> -3 = illegal AORQ</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM></EM></TD> +<TD ALIGN="LEFT"><B></B></TD> +<TD ALIGN="LEFT" NOWRAP> -4 = illegal DM</TD> +</TR> +<TR VALIGN="TOP"><TD ALIGN="LEFT"><EM></EM></TD> +<TD ALIGN="LEFT"><B></B></TD> +<TD ALIGN="LEFT" NOWRAP> -5 = numerical error</TD> +</TR> +</TABLE></DL> +<P> <DL> +<DT><STRONG>NOTES:</STRONG> +<DD><DL COMPACT> +<DT>1. +<DD>DATE is the instant for which the prediction is +required. It is in the TT timescale (formerly +Ephemeris Time, ET) and is a + Modified Julian Date (JD-2400000.5). + <DT>2. +<DD>The longitude and latitude allow correction for geocentric + parallax. This is usually a small effect, but can become + important for Earth-crossing asteroids. Geocentric positions + can be generated by appropriate use of the routines + sla_EVP and sla_PLANEL. + <DT>3. +<DD>The elements are with respect to the J2000 ecliptic and equinox. + <DT>4. +<DD>Three different element-format options are available, as + follows. <BR> +<P> +JFORM=1, suitable for the major planets: +<P> <PRE><TT> + EPOCH = epoch of elements <I>t<SUB>0</SUB></I> (TT MJD) + ORBINC = inclination <I>i</I> (radians) + ANODE = longitude of the ascending node <IMG WIDTH="14" HEIGHT="13" ALIGN="BOTTOM" BORDER="0" + SRC="img99.gif" + ALT="$\Omega$"> (radians) + PERIH = longitude of perihelion <IMG WIDTH="16" HEIGHT="14" ALIGN="BOTTOM" BORDER="0" + SRC="img100.gif" + ALT="$\varpi$"> (radians) + AORQ = mean distance <I>a</I> (AU) + E = eccentricity <I>e</I> + AORL = mean longitude <I>L</I> (radians) + DM = daily motion <I>n</I> (radians) +</TT></PRE> +<P> +JFORM=2, suitable for minor planets: +<P> <PRE><TT> + EPOCH = epoch of elements <I>t<SUB>0</SUB></I> (TT MJD) + ORBINC = inclination <I>i</I> (radians) + ANODE = longitude of the ascending node <IMG WIDTH="14" HEIGHT="13" ALIGN="BOTTOM" BORDER="0" + SRC="img99.gif" + ALT="$\Omega$"> (radians) + PERIH = argument of perihelion <IMG WIDTH="13" HEIGHT="14" ALIGN="BOTTOM" BORDER="0" + SRC="img101.gif" + ALT="$\omega$"> (radians) + AORQ = mean distance <I>a</I> (AU) + E = eccentricity <I>e</I> + AORL = mean anomaly <I>M</I> (radians) +</TT></PRE> +<P> +JFORM=3, suitable for comets: +<P> <PRE><TT> + EPOCH = epoch of perihelion <I>T</I> (TT MJD) + ORBINC = inclination <I>i</I> (radians) + ANODE = longitude of the ascending node <IMG WIDTH="14" HEIGHT="13" ALIGN="BOTTOM" BORDER="0" + SRC="img99.gif" + ALT="$\Omega$"> (radians) + PERIH = argument of perihelion <IMG WIDTH="13" HEIGHT="14" ALIGN="BOTTOM" BORDER="0" + SRC="img101.gif" + ALT="$\omega$"> (radians) + AORQ = perihelion distance <I>q</I> (AU) + E = eccentricity <I>e</I> +</TT></PRE> + <DT>5. +<DD>Unused elements (DM for JFORM=2, AORL and DM for JFORM=3) are + not accessed. + </DL></DL> +<BR> <HR> +<A NAME="tex2html1906" HREF="node149.html"> +<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next_motif.gif"></A> +<A NAME="tex2html1904" HREF="node13.html"> +<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up_motif.gif"></A> +<A NAME="tex2html1898" HREF="node147.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="tex2html1907" HREF="node149.html">SLA_PM - Proper Motion</A> +<BR> +<B>Up:</B> <A NAME="tex2html1905" HREF="node13.html">SUBPROGRAM SPECIFICATIONS</A> +<BR> +<B> Previous:</B> <A NAME="tex2html1899" HREF="node147.html">SLA_PLANET - Planetary Ephemerides</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> |