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diff --git a/src/slalib/sun67.htx/sun67.html b/src/slalib/sun67.htx/sun67.html new file mode 100644 index 0000000..1836213 --- /dev/null +++ b/src/slalib/sun67.htx/sun67.html @@ -0,0 +1,610 @@ +<!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>SLALIB -- Positional Astronomy Library</TITLE> +<META NAME="description" CONTENT="SLALIB -- Positional Astronomy Library"> +<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="node1.html"> +</HEAD> +<BODY > +<BR> <HR> +<A NAME="tex2html7" HREF="node1.html"> +<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next_motif.gif"></A> +<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up_motif_gr.gif"> +<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="previous_motif_gr.gif"> <A HREF="sun67.html#stardoccontents"><IMG ALIGN="BOTTOM" BORDER="0" + SRC="contents_motif.gif"></A> +<BR> +<B> Next:</B> <A NAME="tex2html8" HREF="node1.html">Abstract</A> +<BR> +<BR> <HR> <P> +<P><!--End of Navigation Panel--> +<P><A NAME="xref_"> </A> + <H1> + SLALIB -- Positional Astronomy Library +<BR> +2.4-0 +<BR> +Programmer's Manual + </H1> +<P> <P> <I> + Starlink User Note67.45 +<BR> +P.T.Wallace +<BR> +12 October 1999 + </I> </P> <H3> + <A NAME="tex2html1" HREF="http://www.cclrc.ac.uk">CCLRC</A> +/ + <A NAME="tex2html1" HREF="http://www.cclrc.ac.uk/ral">Rutherford Appleton Laboratory</A> +<BR> + <A NAME="tex2html1" HREF="http://www.pparc.ac.uk">Particle Physics & Astronomy Research Council</A> +<BR> + </H3> <H2> + <A NAME="tex2html1" HREF="http://star-www.rl.ac.uk/">Starlink Project</A> + </H2> + <A NAME="tex2html1" HREF="http://star-www.rl.ac.uk/cgi-bin/hcserver?sun67.45"><IMG ALIGN="BOTTOM" BORDER="0" + SRC="source.gif"> Retrieve hardcopy</A> +<BR> +<A NAME="stardoccontents"> </A> <HR> + <H2>Contents</H2> +<P> <BR><HR> +<!--Table of Child-Links--> +<A NAME="CHILD_LINKS"> </A> +<UL> +<LI><A NAME="tex2html9" HREF="node1.html#SECTION00010000000000000000"> +Abstract</A> +<LI><A NAME="tex2html10" HREF="node2.html#SECTION00020000000000000000"> +INTRODUCTION</A> +<UL> +<LI><A NAME="tex2html11" HREF="node3.html#SECTION00021000000000000000"> +Purpose</A> +<LI><A NAME="tex2html12" HREF="node4.html#SECTION00022000000000000000"> +Example Application</A> +<LI><A NAME="tex2html13" HREF="node5.html#SECTION00023000000000000000"> +Scope</A> +<LI><A NAME="tex2html14" HREF="node6.html#SECTION00024000000000000000"> +Objectives</A> +<LI><A NAME="tex2html15" HREF="node7.html#SECTION00025000000000000000"> +Fortran Version</A> +<LI><A NAME="tex2html16" HREF="node8.html#SECTION00026000000000000000"> +C Version</A> +<LI><A NAME="tex2html17" HREF="node9.html#SECTION00027000000000000000"> +Future Versions</A> +<LI><A NAME="tex2html18" HREF="node10.html#SECTION00028000000000000000"> +New Functions</A> +<LI><A NAME="tex2html19" HREF="node11.html#SECTION00029000000000000000"> +Acknowledgements</A> +</UL> +<LI><A NAME="tex2html20" HREF="node12.html#SECTION00030000000000000000"> +LINKING</A> +<LI><A NAME="tex2html21" HREF="node13.html#SECTION00040000000000000000"> +SUBPROGRAM SPECIFICATIONS</A> +<UL> +<LI><A NAME="tex2html22" HREF="node14.html#SECTION00041000000000000000"> +SLA_ADDET - Add E-terms of Aberration</A> +<LI><A NAME="tex2html23" HREF="node15.html#SECTION00042000000000000000"> +SLA_AFIN - Sexagesimal character string to angle</A> +<LI><A NAME="tex2html24" HREF="node16.html#SECTION00043000000000000000"> +SLA_AIRMAS - Air Mass</A> +<LI><A NAME="tex2html25" HREF="node17.html#SECTION00044000000000000000"> +SLA_ALTAZ - Velocities <I>etc.</I> for Altazimuth Mount</A> +<LI><A NAME="tex2html26" HREF="node18.html#SECTION00045000000000000000"> +SLA_AMP - Apparent to Mean</A> +<LI><A NAME="tex2html27" HREF="node19.html#SECTION00046000000000000000"> +SLA_AMPQK - Quick Apparent to Mean</A> +<LI><A NAME="tex2html28" HREF="node20.html#SECTION00047000000000000000"> +SLA_AOP - Apparent to Observed</A> +<LI><A NAME="tex2html29" HREF="node21.html#SECTION00048000000000000000"> +SLA_AOPPA - Appt-to-Obs Parameters</A> +<LI><A NAME="tex2html30" HREF="node22.html#SECTION00049000000000000000"> +SLA_AOPPAT - Update Appt-to-Obs Parameters</A> +<LI><A NAME="tex2html31" HREF="node23.html#SECTION000410000000000000000"> +SLA_AOPQK - Quick Appt-to-Observed</A> +<LI><A NAME="tex2html32" HREF="node24.html#SECTION000411000000000000000"> +SLA_ATMDSP - Atmospheric Dispersion</A> +<LI><A NAME="tex2html33" HREF="node25.html#SECTION000412000000000000000"> +SLA_AV2M - Rotation Matrix from Axial Vector</A> +<LI><A NAME="tex2html34" HREF="node26.html#SECTION000413000000000000000"> +SLA_BEAR - Direction Between Points on a Sphere</A> +<LI><A NAME="tex2html35" HREF="node27.html#SECTION000414000000000000000"> +SLA_CAF2R - Deg,Arcmin,Arcsec to Radians</A> +<LI><A NAME="tex2html36" HREF="node28.html#SECTION000415000000000000000"> +SLA_CALDJ - Calendar Date to MJD</A> +<LI><A NAME="tex2html37" HREF="node29.html#SECTION000416000000000000000"> +SLA_CALYD - Calendar to Year, Day</A> +<LI><A NAME="tex2html38" HREF="node30.html#SECTION000417000000000000000"> +SLA_CC2S - Cartesian to Spherical</A> +<LI><A NAME="tex2html39" HREF="node31.html#SECTION000418000000000000000"> +SLA_CC62S - Cartesian 6-Vector to Spherical</A> +<LI><A NAME="tex2html40" HREF="node32.html#SECTION000419000000000000000"> +SLA_CD2TF - Days to Hour,Min,Sec</A> +<LI><A NAME="tex2html41" HREF="node33.html#SECTION000420000000000000000"> +SLA_CLDJ - Calendar to MJD</A> +<LI><A NAME="tex2html42" HREF="node34.html#SECTION000421000000000000000"> +SLA_CLYD - Calendar to Year, Day</A> +<LI><A NAME="tex2html43" HREF="node35.html#SECTION000422000000000000000"> +SLA_COMBN - Next Combination</A> +<LI><A NAME="tex2html44" HREF="node36.html#SECTION000423000000000000000"> +SLA_CR2AF - Radians to Deg,Arcmin,Arcsec</A> +<LI><A NAME="tex2html45" HREF="node37.html#SECTION000424000000000000000"> +SLA_CR2TF - Radians to Hour,Min,Sec</A> +<LI><A NAME="tex2html46" HREF="node38.html#SECTION000425000000000000000"> +SLA_CS2C - Spherical to Cartesian</A> +<LI><A NAME="tex2html47" HREF="node39.html#SECTION000426000000000000000"> +SLA_CS2C6 - Spherical Pos/Vel to Cartesian</A> +<LI><A NAME="tex2html48" HREF="node40.html#SECTION000427000000000000000"> +SLA_CTF2D - Hour,Min,Sec to Days</A> +<LI><A NAME="tex2html49" HREF="node41.html#SECTION000428000000000000000"> +SLA_CTF2R - Hour,Min,Sec to Radians</A> +<LI><A NAME="tex2html50" HREF="node42.html#SECTION000429000000000000000"> +SLA_DAF2R - Deg,Arcmin,Arcsec to Radians</A> +<LI><A NAME="tex2html51" HREF="node43.html#SECTION000430000000000000000"> +SLA_DAFIN - Sexagesimal character string to angle</A> +<LI><A NAME="tex2html52" HREF="node44.html#SECTION000431000000000000000"> +SLA_DAT - TAI-UTC</A> +<LI><A NAME="tex2html53" HREF="node45.html#SECTION000432000000000000000"> +SLA_DAV2M - Rotation Matrix from Axial Vector</A> +<LI><A NAME="tex2html54" HREF="node46.html#SECTION000433000000000000000"> +SLA_DBEAR - Direction Between Points on a Sphere</A> +<LI><A NAME="tex2html55" HREF="node47.html#SECTION000434000000000000000"> +SLA_DBJIN - Decode String to B/J Epoch (DP)</A> +<LI><A NAME="tex2html56" HREF="node48.html#SECTION000435000000000000000"> +SLA_DC62S - Cartesian 6-Vector to Spherical</A> +<LI><A NAME="tex2html57" HREF="node49.html#SECTION000436000000000000000"> +SLA_DCC2S - Cartesian to Spherical</A> +<LI><A NAME="tex2html58" HREF="node50.html#SECTION000437000000000000000"> +SLA_DCMPF - Interpret Linear Fit</A> +<LI><A NAME="tex2html59" HREF="node51.html#SECTION000438000000000000000"> +SLA_DCS2C - Spherical to Cartesian</A> +<LI><A NAME="tex2html60" HREF="node52.html#SECTION000439000000000000000"> +SLA_DD2TF - Days to Hour,Min,Sec</A> +<LI><A NAME="tex2html61" HREF="node53.html#SECTION000440000000000000000"> +SLA_DE2H - <IMG WIDTH="27" HEIGHT="27" ALIGN="MIDDLE" BORDER="0" + SRC="img65.gif" + ALT="$h,\delta$"> to Az,El</A> +<LI><A NAME="tex2html62" HREF="node54.html#SECTION000441000000000000000"> +SLA_DEULER - Euler Angles to Rotation Matrix</A> +<LI><A NAME="tex2html63" HREF="node55.html#SECTION000442000000000000000"> +SLA_DFLTIN - Decode a Double Precision Number</A> +<LI><A NAME="tex2html64" HREF="node56.html#SECTION000443000000000000000"> +SLA_DH2E - Az,El to <IMG WIDTH="27" HEIGHT="27" ALIGN="MIDDLE" BORDER="0" + SRC="img65.gif" + ALT="$h,\delta$"></A> +<LI><A NAME="tex2html65" HREF="node57.html#SECTION000444000000000000000"> +SLA_DIMXV - Apply 3D Reverse Rotation</A> +<LI><A NAME="tex2html66" HREF="node58.html#SECTION000445000000000000000"> +SLA_DJCAL - MJD to Gregorian for Output</A> +<LI><A NAME="tex2html67" HREF="node59.html#SECTION000446000000000000000"> +SLA_DJCL - MJD to Year,Month,Day,Frac</A> +<LI><A NAME="tex2html68" HREF="node60.html#SECTION000447000000000000000"> +SLA_DM2AV - Rotation Matrix to Axial Vector</A> +<LI><A NAME="tex2html69" HREF="node61.html#SECTION000448000000000000000"> +SLA_DMAT - Solve Simultaneous Equations</A> +<LI><A NAME="tex2html70" HREF="node62.html#SECTION000449000000000000000"> +SLA_DMOON - Approx Moon Pos/Vel</A> +<LI><A NAME="tex2html71" HREF="node63.html#SECTION000450000000000000000"> +SLA_DMXM - Multiply <IMG WIDTH="39" HEIGHT="25" ALIGN="MIDDLE" BORDER="0" + SRC="img18.gif" + ALT="$3\times3$"> Matrices</A> +<LI><A NAME="tex2html72" HREF="node64.html#SECTION000451000000000000000"> +SLA_DMXV - Apply 3D Rotation</A> +<LI><A NAME="tex2html73" HREF="node65.html#SECTION000452000000000000000"> +SLA_DPAV - Position-Angle Between Two Directions</A> +<LI><A NAME="tex2html74" HREF="node66.html#SECTION000453000000000000000"> +SLA_DR2AF - Radians to Deg,Min,Sec,Frac</A> +<LI><A NAME="tex2html75" HREF="node67.html#SECTION000454000000000000000"> +SLA_DR2TF - Radians to Hour,Min,Sec,Frac</A> +<LI><A NAME="tex2html76" HREF="node68.html#SECTION000455000000000000000"> +SLA_DRANGE - Put Angle into Range <IMG WIDTH="25" HEIGHT="25" ALIGN="MIDDLE" BORDER="0" + SRC="img47.gif" + ALT="$\pm \pi$"></A> +<LI><A NAME="tex2html77" HREF="node69.html#SECTION000456000000000000000"> +SLA_DRANRM - Put Angle into Range <IMG WIDTH="43" HEIGHT="25" ALIGN="MIDDLE" BORDER="0" + SRC="img66.gif" + ALT="$0\!-\!2\pi$"></A> +<LI><A NAME="tex2html78" HREF="node70.html#SECTION000457000000000000000"> +SLA_DS2C6 - Spherical Pos/Vel to Cartesian</A> +<LI><A NAME="tex2html79" HREF="node71.html#SECTION000458000000000000000"> +SLA_DS2TP - Spherical to Tangent Plane</A> +<LI><A NAME="tex2html80" HREF="node72.html#SECTION000459000000000000000"> +SLA_DSEP - Angle Between 2 Points on Sphere</A> +<LI><A NAME="tex2html81" HREF="node73.html#SECTION000460000000000000000"> +SLA_DT - Approximate ET minus UT</A> +<LI><A NAME="tex2html82" HREF="node74.html#SECTION000461000000000000000"> +SLA_DTF2D - Hour,Min,Sec to Days</A> +<LI><A NAME="tex2html83" HREF="node75.html#SECTION000462000000000000000"> +SLA_DTF2R - Hour,Min,Sec to Radians</A> +<LI><A NAME="tex2html84" HREF="node76.html#SECTION000463000000000000000"> +SLA_DTP2S - Tangent Plane to Spherical</A> +<LI><A NAME="tex2html85" HREF="node77.html#SECTION000464000000000000000"> +SLA_DTP2V - Tangent Plane to Direction Cosines</A> +<LI><A NAME="tex2html86" HREF="node78.html#SECTION000465000000000000000"> +SLA_DTPS2C - Plate centre from <IMG WIDTH="26" HEIGHT="27" ALIGN="MIDDLE" BORDER="0" + SRC="img90.gif" + ALT="$\xi,\eta$"> and <IMG WIDTH="28" HEIGHT="27" ALIGN="MIDDLE" BORDER="0" + SRC="img91.gif" + ALT="$\alpha,\delta$"></A> +<LI><A NAME="tex2html87" HREF="node79.html#SECTION000466000000000000000"> +SLA_DTPV2C - Plate centre from <IMG WIDTH="26" HEIGHT="27" ALIGN="MIDDLE" BORDER="0" + SRC="img90.gif" + ALT="$\xi,\eta$"> and <I>x</I>,<I>y</I>,<I>z</I></A> +<LI><A NAME="tex2html88" HREF="node80.html#SECTION000467000000000000000"> +SLA_DTT - TT minus UTC</A> +<LI><A NAME="tex2html89" HREF="node81.html#SECTION000468000000000000000"> +SLA_DV2TP - Direction Cosines to Tangent Plane</A> +<LI><A NAME="tex2html90" HREF="node82.html#SECTION000469000000000000000"> +SLA_DVDV - Scalar Product</A> +<LI><A NAME="tex2html91" HREF="node83.html#SECTION000470000000000000000"> +SLA_DVN - Normalize Vector</A> +<LI><A NAME="tex2html92" HREF="node84.html#SECTION000471000000000000000"> +SLA_DVXV - Vector Product</A> +<LI><A NAME="tex2html93" HREF="node85.html#SECTION000472000000000000000"> +SLA_E2H - <IMG WIDTH="27" HEIGHT="27" ALIGN="MIDDLE" BORDER="0" + SRC="img65.gif" + ALT="$h,\delta$"> to Az,El</A> +<LI><A NAME="tex2html94" HREF="node86.html#SECTION000473000000000000000"> +SLA_EARTH - Approx Earth Pos/Vel</A> +<LI><A NAME="tex2html95" HREF="node87.html#SECTION000474000000000000000"> +SLA_ECLEQ - Ecliptic to Equatorial</A> +<LI><A NAME="tex2html96" HREF="node88.html#SECTION000475000000000000000"> +SLA_ECMAT - Form <IMG WIDTH="81" HEIGHT="27" ALIGN="MIDDLE" BORDER="0" + SRC="img95.gif" + ALT="$\alpha,\delta\rightarrow\lambda,\beta$"> Matrix</A> +<LI><A NAME="tex2html97" HREF="node89.html#SECTION000476000000000000000"> +SLA_ECOR - RV & Time Corrns to Sun</A> +<LI><A NAME="tex2html98" HREF="node90.html#SECTION000477000000000000000"> +SLA_EG50 - B1950 <IMG WIDTH="28" HEIGHT="27" ALIGN="MIDDLE" BORDER="0" + SRC="img91.gif" + ALT="$\alpha,\delta$"> to Galactic</A> +<LI><A NAME="tex2html99" HREF="node91.html#SECTION000478000000000000000"> +SLA_EL2UE - Conventional to Universal Elements</A> +<LI><A NAME="tex2html100" HREF="node92.html#SECTION000479000000000000000"> +SLA_EPB - MJD to Besselian Epoch</A> +<LI><A NAME="tex2html101" HREF="node93.html#SECTION000480000000000000000"> +SLA_EPB2D - Besselian Epoch to MJD</A> +<LI><A NAME="tex2html102" HREF="node94.html#SECTION000481000000000000000"> +SLA_EPCO - Convert Epoch to B or J</A> +<LI><A NAME="tex2html103" HREF="node95.html#SECTION000482000000000000000"> +SLA_EPJ - MJD to Julian Epoch</A> +<LI><A NAME="tex2html104" HREF="node96.html#SECTION000483000000000000000"> +SLA_EPJ2D - Julian Epoch to MJD</A> +<LI><A NAME="tex2html105" HREF="node97.html#SECTION000484000000000000000"> +SLA_EQECL - J2000 <IMG WIDTH="28" HEIGHT="27" ALIGN="MIDDLE" BORDER="0" + SRC="img91.gif" + ALT="$\alpha,\delta$"> to Ecliptic</A> +<LI><A NAME="tex2html106" HREF="node98.html#SECTION000485000000000000000"> +SLA_EQEQX - Equation of the Equinoxes</A> +<LI><A NAME="tex2html107" HREF="node99.html#SECTION000486000000000000000"> +SLA_EQGAL - J2000 <IMG WIDTH="28" HEIGHT="27" ALIGN="MIDDLE" BORDER="0" + SRC="img91.gif" + ALT="$\alpha,\delta$"> to Galactic</A> +<LI><A NAME="tex2html108" HREF="node100.html#SECTION000487000000000000000"> +SLA_ETRMS - E-terms of Aberration</A> +<LI><A NAME="tex2html109" HREF="node101.html#SECTION000488000000000000000"> +SLA_EULER - Rotation Matrix from Euler Angles</A> +<LI><A NAME="tex2html110" HREF="node102.html#SECTION000489000000000000000"> +SLA_EVP - Earth Position & Velocity</A> +<LI><A NAME="tex2html111" HREF="node103.html#SECTION000490000000000000000"> +SLA_FITXY - Fit Linear Model to Two <IMG WIDTH="42" HEIGHT="29" ALIGN="MIDDLE" BORDER="0" + SRC="img20.gif" + ALT="$[\,x,y\,]$"> Sets</A> +<LI><A NAME="tex2html112" HREF="node104.html#SECTION000491000000000000000"> +SLA_FK425 - FK4 to FK5</A> +<LI><A NAME="tex2html113" HREF="node105.html#SECTION000492000000000000000"> +SLA_FK45Z - FK4 to FK5, no P.M. or Parallax</A> +<LI><A NAME="tex2html114" HREF="node106.html#SECTION000493000000000000000"> +SLA_FK524 - FK5 to FK4</A> +<LI><A NAME="tex2html115" HREF="node107.html#SECTION000494000000000000000"> +SLA_FK52H - FK5 to Hipparcos</A> +<LI><A NAME="tex2html116" HREF="node108.html#SECTION000495000000000000000"> +SLA_FK54Z - FK5 to FK4, no P.M. or Parallax</A> +<LI><A NAME="tex2html117" HREF="node109.html#SECTION000496000000000000000"> +SLA_FK5HZ - FK5 to Hipparcos, no P.M.</A> +<LI><A NAME="tex2html118" HREF="node110.html#SECTION000497000000000000000"> +SLA_FLOTIN - Decode a Real Number</A> +<LI><A NAME="tex2html119" HREF="node111.html#SECTION000498000000000000000"> +SLA_GALEQ - Galactic to J2000 <IMG WIDTH="28" HEIGHT="27" ALIGN="MIDDLE" BORDER="0" + SRC="img91.gif" + ALT="$\alpha,\delta$"></A> +<LI><A NAME="tex2html120" HREF="node112.html#SECTION000499000000000000000"> +SLA_GALSUP - Galactic to Supergalactic</A> +<LI><A NAME="tex2html121" HREF="node113.html#SECTION0004100000000000000000"> +SLA_GE50 - Galactic to B1950 <IMG WIDTH="28" HEIGHT="27" ALIGN="MIDDLE" BORDER="0" + SRC="img91.gif" + ALT="$\alpha,\delta$"></A> +<LI><A NAME="tex2html122" HREF="node114.html#SECTION0004101000000000000000"> +SLA_GEOC - Geodetic to Geocentric</A> +<LI><A NAME="tex2html123" HREF="node115.html#SECTION0004102000000000000000"> +SLA_GMST - UT to GMST</A> +<LI><A NAME="tex2html124" HREF="node116.html#SECTION0004103000000000000000"> +SLA_GMSTA - UT to GMST (extra precision)</A> +<LI><A NAME="tex2html125" HREF="node117.html#SECTION0004104000000000000000"> +SLA_GRESID - Gaussian Residual</A> +<LI><A NAME="tex2html126" HREF="node118.html#SECTION0004105000000000000000"> +SLA_H2E - Az,El to <IMG WIDTH="27" HEIGHT="27" ALIGN="MIDDLE" BORDER="0" + SRC="img65.gif" + ALT="$h,\delta$"></A> +<LI><A NAME="tex2html127" HREF="node119.html#SECTION0004106000000000000000"> +SLA_H2FK5 - Hipparcos to FK5</A> +<LI><A NAME="tex2html128" HREF="node120.html#SECTION0004107000000000000000"> +SLA_HFK5Z - Hipparcos to FK5, no P.M.</A> +<LI><A NAME="tex2html129" HREF="node121.html#SECTION0004108000000000000000"> +SLA_IMXV - Apply 3D Reverse Rotation</A> +<LI><A NAME="tex2html130" HREF="node122.html#SECTION0004109000000000000000"> +SLA_INTIN - Decode an Integer Number</A> +<LI><A NAME="tex2html131" HREF="node123.html#SECTION0004110000000000000000"> +SLA_INVF - Invert Linear Model</A> +<LI><A NAME="tex2html132" HREF="node124.html#SECTION0004111000000000000000"> +SLA_KBJ - Select Epoch Prefix</A> +<LI><A NAME="tex2html133" HREF="node125.html#SECTION0004112000000000000000"> +SLA_M2AV - Rotation Matrix to Axial Vector</A> +<LI><A NAME="tex2html134" HREF="node126.html#SECTION0004113000000000000000"> +SLA_MAP - Mean to Apparent</A> +<LI><A NAME="tex2html135" HREF="node127.html#SECTION0004114000000000000000"> +SLA_MAPPA - Mean to Apparent Parameters</A> +<LI><A NAME="tex2html136" HREF="node128.html#SECTION0004115000000000000000"> +SLA_MAPQK - Quick Mean to Apparent</A> +<LI><A NAME="tex2html137" HREF="node129.html#SECTION0004116000000000000000"> +SLA_MAPQKZ - Quick Mean-Appt, no PM <I>etc.</I></A> +<LI><A NAME="tex2html138" HREF="node130.html#SECTION0004117000000000000000"> +SLA_MOON - Approx Moon Pos/Vel</A> +<LI><A NAME="tex2html139" HREF="node131.html#SECTION0004118000000000000000"> +SLA_MXM - Multiply <IMG WIDTH="39" HEIGHT="25" ALIGN="MIDDLE" BORDER="0" + SRC="img18.gif" + ALT="$3\times3$"> Matrices</A> +<LI><A NAME="tex2html140" HREF="node132.html#SECTION0004119000000000000000"> +SLA_MXV - Apply 3D Rotation</A> +<LI><A NAME="tex2html141" HREF="node133.html#SECTION0004120000000000000000"> +SLA_NUT - Nutation Matrix</A> +<LI><A NAME="tex2html142" HREF="node134.html#SECTION0004121000000000000000"> +SLA_NUTC - Nutation Components</A> +<LI><A NAME="tex2html143" HREF="node135.html#SECTION0004122000000000000000"> +SLA_OAP - Observed to Apparent</A> +<LI><A NAME="tex2html144" HREF="node136.html#SECTION0004123000000000000000"> +SLA_OAPQK - Quick Observed to Apparent</A> +<LI><A NAME="tex2html145" HREF="node137.html#SECTION0004124000000000000000"> +SLA_OBS - Observatory Parameters</A> +<LI><A NAME="tex2html146" HREF="node138.html#SECTION0004125000000000000000"> +SLA_PA - <IMG WIDTH="27" HEIGHT="27" ALIGN="MIDDLE" BORDER="0" + SRC="img65.gif" + ALT="$h,\delta$"> to Parallactic Angle</A> +<LI><A NAME="tex2html147" HREF="node139.html#SECTION0004126000000000000000"> +SLA_PAV - Position-Angle Between Two Directions</A> +<LI><A NAME="tex2html148" HREF="node140.html#SECTION0004127000000000000000"> +SLA_PCD - Apply Radial Distortion</A> +<LI><A NAME="tex2html149" HREF="node141.html#SECTION0004128000000000000000"> +SLA_PDA2H - H.A. for a Given Azimuth</A> +<LI><A NAME="tex2html150" HREF="node142.html#SECTION0004129000000000000000"> +SLA_PDQ2H - H.A. for a Given P.A.</A> +<LI><A NAME="tex2html151" HREF="node143.html#SECTION0004130000000000000000"> +SLA_PERMUT - Next Permutation</A> +<LI><A NAME="tex2html152" HREF="node144.html#SECTION0004131000000000000000"> +SLA_PERTEL - Perturbed Orbital Elements</A> +<LI><A NAME="tex2html153" HREF="node145.html#SECTION0004132000000000000000"> +SLA_PERTUE - Perturbed Universal Elements</A> +<LI><A NAME="tex2html154" HREF="node146.html#SECTION0004133000000000000000"> +SLA_PLANEL - Planet Position from Elements</A> +<LI><A NAME="tex2html155" HREF="node147.html#SECTION0004134000000000000000"> +SLA_PLANET - Planetary Ephemerides</A> +<LI><A NAME="tex2html156" HREF="node148.html#SECTION0004135000000000000000"> +SLA_PLANTE - <IMG WIDTH="42" HEIGHT="29" ALIGN="MIDDLE" BORDER="0" + SRC="img3.gif" + ALT="$[\,\alpha,\delta\,]$"> of Planet from Elements</A> +<LI><A NAME="tex2html157" HREF="node149.html#SECTION0004136000000000000000"> +SLA_PM - Proper Motion</A> +<LI><A NAME="tex2html158" HREF="node150.html#SECTION0004137000000000000000"> +SLA_POLMO - Polar Motion</A> +<LI><A NAME="tex2html159" HREF="node151.html#SECTION0004138000000000000000"> +SLA_PREBN - Precession Matrix (FK4)</A> +<LI><A NAME="tex2html160" HREF="node152.html#SECTION0004139000000000000000"> +SLA_PREC - Precession Matrix (FK5)</A> +<LI><A NAME="tex2html161" HREF="node153.html#SECTION0004140000000000000000"> +SLA_PRECES - Precession</A> +<LI><A NAME="tex2html162" HREF="node154.html#SECTION0004141000000000000000"> +SLA_PRECL - Precession Matrix (latest)</A> +<LI><A NAME="tex2html163" HREF="node155.html#SECTION0004142000000000000000"> +SLA_PRENUT - Precession/Nutation Matrix</A> +<LI><A NAME="tex2html164" HREF="node156.html#SECTION0004143000000000000000"> +SLA_PV2EL - Orbital Elements from Position/Velocity</A> +<LI><A NAME="tex2html165" HREF="node157.html#SECTION0004144000000000000000"> +SLA_PV2UE - Position/Velocity to Universal Elements</A> +<LI><A NAME="tex2html166" HREF="node158.html#SECTION0004145000000000000000"> +SLA_PVOBS - Observatory Position & Velocity</A> +<LI><A NAME="tex2html167" HREF="node159.html#SECTION0004146000000000000000"> +SLA_PXY - Apply Linear Model</A> +<LI><A NAME="tex2html168" HREF="node160.html#SECTION0004147000000000000000"> +SLA_RANDOM - Random Number</A> +<LI><A NAME="tex2html169" HREF="node161.html#SECTION0004148000000000000000"> +SLA_RANGE - Put Angle into Range <IMG WIDTH="25" HEIGHT="25" ALIGN="MIDDLE" BORDER="0" + SRC="img47.gif" + ALT="$\pm \pi$"></A> +<LI><A NAME="tex2html170" HREF="node162.html#SECTION0004149000000000000000"> +SLA_RANORM - Put Angle into Range <IMG WIDTH="43" HEIGHT="25" ALIGN="MIDDLE" BORDER="0" + SRC="img66.gif" + ALT="$0\!-\!2\pi$"></A> +<LI><A NAME="tex2html171" HREF="node163.html#SECTION0004150000000000000000"> +SLA_RCC - Barycentric Coordinate Time</A> +<LI><A NAME="tex2html172" HREF="node164.html#SECTION0004151000000000000000"> +SLA_RDPLAN - Apparent <IMG WIDTH="42" HEIGHT="29" ALIGN="MIDDLE" BORDER="0" + SRC="img3.gif" + ALT="$[\,\alpha,\delta\,]$"> of Planet</A> +<LI><A NAME="tex2html173" HREF="node165.html#SECTION0004152000000000000000"> +SLA_REFCO - Refraction Constants</A> +<LI><A NAME="tex2html174" HREF="node166.html#SECTION0004153000000000000000"> +SLA_REFCOQ - Refraction Constants (fast)</A> +<LI><A NAME="tex2html175" HREF="node167.html#SECTION0004154000000000000000"> +SLA_REFRO - Refraction</A> +<LI><A NAME="tex2html176" HREF="node168.html#SECTION0004155000000000000000"> +SLA_REFV - Apply Refraction to Vector</A> +<LI><A NAME="tex2html177" HREF="node169.html#SECTION0004156000000000000000"> +SLA_REFZ - Apply Refraction to ZD</A> +<LI><A NAME="tex2html178" HREF="node170.html#SECTION0004157000000000000000"> +SLA_RVEROT - RV Corrn to Earth Centre</A> +<LI><A NAME="tex2html179" HREF="node171.html#SECTION0004158000000000000000"> +SLA_RVGALC - RV Corrn to Galactic Centre</A> +<LI><A NAME="tex2html180" HREF="node172.html#SECTION0004159000000000000000"> +SLA_RVLG - RV Corrn to Local Group</A> +<LI><A NAME="tex2html181" HREF="node173.html#SECTION0004160000000000000000"> +SLA_RVLSRD - RV Corrn to Dynamical LSR</A> +<LI><A NAME="tex2html182" HREF="node174.html#SECTION0004161000000000000000"> +SLA_RVLSRK - RV Corrn to Kinematical LSR</A> +<LI><A NAME="tex2html183" HREF="node175.html#SECTION0004162000000000000000"> +SLA_S2TP - Spherical to Tangent Plane</A> +<LI><A NAME="tex2html184" HREF="node176.html#SECTION0004163000000000000000"> +SLA_SEP - Angle Between 2 Points on Sphere</A> +<LI><A NAME="tex2html185" HREF="node177.html#SECTION0004164000000000000000"> +SLA_SMAT - Solve Simultaneous Equations</A> +<LI><A NAME="tex2html186" HREF="node178.html#SECTION0004165000000000000000"> +SLA_SUBET - Remove E-terms</A> +<LI><A NAME="tex2html187" HREF="node179.html#SECTION0004166000000000000000"> +SLA_SUPGAL - Supergalactic to Galactic</A> +<LI><A NAME="tex2html188" HREF="node180.html#SECTION0004167000000000000000"> +SLA_SVD - Singular Value Decomposition</A> +<LI><A NAME="tex2html189" HREF="node181.html#SECTION0004168000000000000000"> +SLA_SVDCOV - Covariance Matrix from SVD</A> +<LI><A NAME="tex2html190" HREF="node182.html#SECTION0004169000000000000000"> +SLA_SVDSOL - Solution Vector from SVD</A> +<LI><A NAME="tex2html191" HREF="node183.html#SECTION0004170000000000000000"> +SLA_TP2S - Tangent Plane to Spherical</A> +<LI><A NAME="tex2html192" HREF="node184.html#SECTION0004171000000000000000"> +SLA_TP2V - Tangent Plane to Direction Cosines</A> +<LI><A NAME="tex2html193" HREF="node185.html#SECTION0004172000000000000000"> +SLA_TPS2C - Plate centre from <IMG WIDTH="26" HEIGHT="27" ALIGN="MIDDLE" BORDER="0" + SRC="img90.gif" + ALT="$\xi,\eta$"> and <IMG WIDTH="28" HEIGHT="27" ALIGN="MIDDLE" BORDER="0" + SRC="img91.gif" + ALT="$\alpha,\delta$"></A> +<LI><A NAME="tex2html194" HREF="node186.html#SECTION0004173000000000000000"> +SLA_TPV2C - Plate centre from <IMG WIDTH="26" HEIGHT="27" ALIGN="MIDDLE" BORDER="0" + SRC="img90.gif" + ALT="$\xi,\eta$"> and <I>x</I>,<I>y</I>,<I>z</I></A> +<LI><A NAME="tex2html195" HREF="node187.html#SECTION0004174000000000000000"> +SLA_UE2EL - Universal to Conventional Elements</A> +<LI><A NAME="tex2html196" HREF="node188.html#SECTION0004175000000000000000"> +SLA_UE2PV - Pos/Vel from Universal Elements</A> +<LI><A NAME="tex2html197" HREF="node189.html#SECTION0004176000000000000000"> +SLA_UNPCD - Remove Radial Distortion</A> +<LI><A NAME="tex2html198" HREF="node190.html#SECTION0004177000000000000000"> +SLA_V2TP - Direction Cosines to Tangent Plane</A> +<LI><A NAME="tex2html199" HREF="node191.html#SECTION0004178000000000000000"> +SLA_VDV - Scalar Product</A> +<LI><A NAME="tex2html200" HREF="node192.html#SECTION0004179000000000000000"> +SLA_VN - Normalize Vector</A> +<LI><A NAME="tex2html201" HREF="node193.html#SECTION0004180000000000000000"> +SLA_VXV - Vector Product</A> +<LI><A NAME="tex2html202" HREF="node194.html#SECTION0004181000000000000000"> +SLA_WAIT - Time Delay</A> +<LI><A NAME="tex2html203" HREF="node195.html#SECTION0004182000000000000000"> +SLA_XY2XY - Apply Linear Model to an <IMG WIDTH="42" HEIGHT="29" ALIGN="MIDDLE" BORDER="0" + SRC="img20.gif" + ALT="$[\,x,y\,]$"></A> +<LI><A NAME="tex2html204" HREF="node196.html#SECTION0004183000000000000000"> +SLA_ZD - <IMG WIDTH="27" HEIGHT="27" ALIGN="MIDDLE" BORDER="0" + SRC="img65.gif" + ALT="$h,\delta$"> to Zenith Distance</A> +</UL> +<LI><A NAME="tex2html205" HREF="node197.html#SECTION00050000000000000000"> +EXPLANATION AND EXAMPLES</A> +<UL> +<LI><A NAME="tex2html206" HREF="node198.html#SECTION00051000000000000000"> +Spherical Trigonometry</A> +<UL> +<LI><A NAME="tex2html207" HREF="node199.html#SECTION00051100000000000000"> +Formatting angles</A> +</UL> +<LI><A NAME="tex2html208" HREF="node200.html#SECTION00052000000000000000"> +Vectors and Matrices</A> +<UL> +<LI><A NAME="tex2html209" HREF="node201.html#SECTION00052100000000000000"> +Using vectors</A> +</UL> +<LI><A NAME="tex2html210" HREF="node202.html#SECTION00053000000000000000"> +Celestial Coordinate Systems</A> +<LI><A NAME="tex2html211" HREF="node203.html#SECTION00054000000000000000"> +Precession and Nutation</A> +<UL> +<LI><A NAME="tex2html212" HREF="node204.html#SECTION00054100000000000000"> +SLALIB support for precession and nutation</A> +</UL> +<LI><A NAME="tex2html213" HREF="node205.html#SECTION00055000000000000000"> +Mean Places</A> +<LI><A NAME="tex2html214" HREF="node206.html#SECTION00056000000000000000"> +Epoch</A> +<LI><A NAME="tex2html215" HREF="node207.html#SECTION00057000000000000000"> +Proper Motion</A> +<LI><A NAME="tex2html216" HREF="node208.html#SECTION00058000000000000000"> +Parallax and Radial Velocity</A> +<LI><A NAME="tex2html217" HREF="node209.html#SECTION00059000000000000000"> +Aberration</A> +<LI><A NAME="tex2html218" HREF="node210.html#SECTION000510000000000000000"> +Different Sorts of Mean Place</A> +<LI><A NAME="tex2html219" HREF="node211.html#SECTION000511000000000000000"> +Mean Place Transformations</A> +<LI><A NAME="tex2html220" HREF="node212.html#SECTION000512000000000000000"> +Mean Place to Apparent Place</A> +<LI><A NAME="tex2html221" HREF="node213.html#SECTION000513000000000000000"> +Apparent Place to Observed Place</A> +<UL> +<LI><A NAME="tex2html222" HREF="node214.html#SECTION000513100000000000000"> +Refraction</A> +<LI><A NAME="tex2html223" HREF="node215.html#SECTION000513200000000000000"> +Efficiency considerations</A> +</UL> +<LI><A NAME="tex2html224" HREF="node216.html#SECTION000514000000000000000"> +The Hipparcos Catalogue and the ICRS</A> +<LI><A NAME="tex2html225" HREF="node217.html#SECTION000515000000000000000"> +Timescales</A> +<UL> +<LI><A NAME="tex2html226" HREF="node218.html#SECTION000515100000000000000"> +Atomic Time: TAI</A> +<LI><A NAME="tex2html227" HREF="node219.html#SECTION000515200000000000000"> +Universal Time: UTC, UT1</A> +<LI><A NAME="tex2html228" HREF="node220.html#SECTION000515300000000000000"> +Sidereal Time: GMST, LAST</A> +<LI><A NAME="tex2html229" HREF="node221.html#SECTION000515400000000000000"> +Dynamical Time: TT, TDB</A> +</UL> +<LI><A NAME="tex2html230" HREF="node222.html#SECTION000516000000000000000"> +Calendars</A> +<LI><A NAME="tex2html231" HREF="node223.html#SECTION000517000000000000000"> +Geocentric Coordinates</A> +<LI><A NAME="tex2html232" HREF="node224.html#SECTION000518000000000000000"> +Ephemerides</A> +<LI><A NAME="tex2html233" HREF="node225.html#SECTION000519000000000000000"> +Radial Velocity and Light-Time Corrections</A> +<LI><A NAME="tex2html234" HREF="node226.html#SECTION000520000000000000000"> +Focal-Plane Astrometry</A> +<LI><A NAME="tex2html235" HREF="node227.html#SECTION000521000000000000000"> +Numerical Methods</A> +</UL> +<LI><A NAME="tex2html236" HREF="node228.html#SECTION00060000000000000000"> +SUMMARY OF CALLS</A> +<LI><A NAME="tex2html237" HREF="node229.html#SECTION00070000000000000000"> +About this document ... </A> +</UL> +<!--End of Table of Child-Links--> +<BR> <HR> +<A NAME="tex2html7" HREF="node1.html"> +<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next_motif.gif"></A> +<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up_motif_gr.gif"> +<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="previous_motif_gr.gif"> <A HREF="sun67.html#stardoccontents"><IMG ALIGN="BOTTOM" BORDER="0" + SRC="contents_motif.gif"></A> +<BR> +<B> Next:</B> <A NAME="tex2html8" HREF="node1.html">Abstract</A> +<BR> +<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> |