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diff --git a/ast/pal/palRvgalc.c b/ast/pal/palRvgalc.c
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--- a/ast/pal/palRvgalc.c
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-/*
-*+
-*  Name:
-*     palRvgalc
-
-*  Purpose:
-*     Velocity component in a given direction due to the rotation
-*     of the Galaxy.
-
-*  Language:
-*     Starlink ANSI C
-
-*  Type of Module:
-*     Library routine
-
-*  Invocation:
-*     double palRvgalc( double r2000, double d2000 )
-
-*  Arguments:
-*     r2000 = double (Given)
-*        J2000.0 mean RA (radians)
-*     d2000 = double (Given)
-*        J2000.0 mean Dec (radians)
-
-*  Returned Value:
-*     Component of dynamical LSR motion in direction R2000,D2000 (km/s).
-
-*  Description:
-*     This function returns the Component of dynamical LSR motion in
-*     the direction of R2000,D2000. The result is +ve when the dynamical
-*     LSR is receding from the given point on the sky.
-*
-*  Notes:
-*     - The Local Standard of Rest used here is a point in the
-*     vicinity of the Sun which is in a circular orbit around
-*     the Galactic centre.  Sometimes called the "dynamical" LSR,
-*     it is not to be confused with a "kinematical" LSR, which
-*     is the mean standard of rest of star catalogues or stellar
-*     populations.
-*
-*  Reference:
-*     - The orbital speed of 220 km/s used here comes from Kerr &
-*     Lynden-Bell (1986), MNRAS, 221, p1023.
-
-*  Authors:
-*     PTW: Pat Wallace (STFC)
-*     DSB: David Berry (JAC, Hawaii)
-*     {enter_new_authors_here}
-
-*  History:
-*     2012-02-16 (DSB):
-*        Initial version.
-*        Adapted with permission from the Fortran SLALIB library.
-*     {enter_further_changes_here}
-
-*  Copyright:
-*     Copyright (C) 1995 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"
-
-double palRvgalc( double r2000, double d2000 ){
-
-/* Local Variables: */
-   double vb[ 3 ];
-
-/*
-*  LSR velocity due to Galactic rotation
-*
-*  Speed = 220 km/s
-*  Apex  = L2,B2  90deg, 0deg
-*        = RA,Dec  21 12 01.1  +48 19 47  J2000.0
-*
-*  This is expressed in the form of a J2000.0 x,y,z vector:
-*
-*      VA(1) = X = -SPEED*COS(RA)*COS(DEC)
-*      VA(2) = Y = -SPEED*SIN(RA)*COS(DEC)
-*      VA(3) = Z = -SPEED*SIN(DEC)
-*/
-
-   double va[ 3 ] = { -108.70408, +97.86251, -164.33610 };
-
-/* Convert given J2000 RA,Dec to x,y,z. */
-   eraS2c( r2000, d2000, vb );
-
-/* Compute dot product with LSR motion vector. */
-   return eraPdp( va, vb );
-}