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-/*
-*+
-* Name:
-* palMapqkz
-
-* Purpose:
-* Quick mean to apparent place.
-
-* Language:
-* Starlink ANSI C
-
-* Type of Module:
-* Library routine
-
-* Invocation:
-* void palMapqkz( double rm, double dm, double amprms[21],
-* double *ra, double *da )
-
-* Arguments:
-* rm = double (Given)
-* Mean RA (radians).
-* dm = double (Given)
-* Mean Dec (radians).
-* amprms = double[21] (Given)
-* Star-independent mean-to-apparent parameters (see palMappa):
-* (0-3) not used
-* (4-6) not used
-* (7) not used
-* (8-10) abv: barycentric Earth velocity in units of c
-* (11) sqrt(1-v**2) where v=modulus(abv)
-* (12-20) precession/nutation (3,3) matrix
-* ra = double * (Returned)
-* Apparent RA (radians).
-* da = double * (Returned)
-* Apparent Dec (radians).
-
-* Description:
-* Quick mean to apparent place: transform a star RA,dec from
-* mean place to geocentric apparent place, given the
-* star-independent parameters, and assuming zero parallax
-* and proper motion.
-*
-* Use of this function is appropriate when efficiency is important
-* and where many star positions, all with parallax and proper
-* motion either zero or already allowed for, and all referred to
-* the same equator and equinox, are to be transformed for one
-* epoch. The star-independent parameters can be obtained by
-* calling the palMappa function.
-*
-* The corresponding function for the case of non-zero parallax
-* and proper motion is palMapqk.
-*
-* The reference systems and timescales used are IAU 2006.
-*
-* Strictly speaking, the function is not valid for solar-system
-* sources, though the error will usually be extremely small.
-
-* Authors:
-* PTW: Pat Wallace (STFC)
-* {enter_new_authors_here}
-
-* History:
-* 2012-02-13 (PTW):
-* Initial version.
-* Adapted with permission from the Fortran SLALIB library.
-* {enter_further_changes_here}
-
-* Copyright:
-* Copyright (C) 1999 Rutherford Appleton Laboratory
-* Copyright (C) 2012 Science and Technology Facilities Council.
-* All Rights Reserved.
-
-* Licence:
-* This program is free software: you can redistribute it and/or
-* modify it under the terms of the GNU Lesser General Public
-* License as published by the Free Software Foundation, either
-* version 3 of the License, or (at your option) any later
-* version.
-*
-* This program is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-* GNU Lesser General Public License for more details.
-*
-* You should have received a copy of the GNU Lesser General
-* License along with this program. If not, see
-* <http://www.gnu.org/licenses/>.
-
-* Bugs:
-* {note_any_bugs_here}
-*-
-*/
-
-#include "pal.h"
-#include "pal1sofa.h"
-
-void palMapqkz ( double rm, double dm, double amprms[21], double *ra,
- double *da ){
-
-/* Local Variables: */
- int i;
- double ab1, abv[3], p[3], w, p1dv, p1dvp1, p2[3], p3[3];
-
-/* Unpack scalar and vector parameters. */
- ab1 = amprms[11];
- for( i = 0; i < 3; i++ ) {
- abv[i] = amprms[i+8];
- }
-
-/* Spherical to x,y,z. */
- eraS2c( rm, dm, p );
-
-/* Aberration. */
- p1dv = eraPdp( p, abv );
- p1dvp1 = p1dv + 1.0;
- w = 1.0 + p1dv / ( ab1 + 1.0 );
- for( i = 0; i < 3; i++ ) {
- p2[i] = ( ( ab1 * p[i] ) + ( w * abv[i] ) ) / p1dvp1;
- }
-
-/* Precession and nutation. */
- eraRxp( (double(*)[3]) &amprms[12], p2, p3 );
-
-/* Geocentric apparent RA,dec. */
- eraC2s( p3, ra, da );
- *ra = eraAnp( *ra );
-}