; COORDINA
;---------------------------------------------------------------
;! Array to hold coordinate values
;# ADVERB COORDINATES
;-----------------------------------------------------------------------
;;  Copyright (C) 1997
;;  Associated Universities, Inc. Washington DC, USA.
;;
;;  This program is free software; you can redistribute it and/or
;;  modify it under the terms of the GNU General Public License as
;;  published by the Free Software Foundation; either version 2 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 General Public License for more details.
;;
;;  You should have received a copy of the GNU General Public
;;  License along with this program; if not, write to the Free
;;  Software Foundation, Inc., 675 Massachusetts Ave, Cambridge,
;;  MA 02139, USA.
;;
;;  Correspondence concerning AIPS should be addressed as follows:
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;;         Postal address: AIPS Project Office
;;                         National Radio Astronomy Observatory
;;                         520 Edgemont Road
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;-----------------------------------------------------------------------
COORDINA  LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC
----------------------------------------------------------------
COORDINA
Type: Adverb   (Real(6))
Use:  An array adverb used to convey coordinate values as:
         Xpos = abs(COOR(1)) + abs(COOR(2))/60 + abs(COOR(3))/3600
            if any of COOR(1), COOR(2), COOR(3) < 0: Xpos = -Xpos
         Ypos = abs(COOR(4)) + abs(COOR(5))/60 + abs(COOR(6))/3600
            if any of COOR(4), COOR(5), COOR(6) < 0: Ypos = -Ypos
      Note that, although these are most suited to RA, Dec in
      sexagesimal notation, they can be used for any type of coordinate.
      The units are standard units of the X and Y axes (e.g degrees,
      m/sec, Hz, sec, etc.) except that right ascensions are in hours of
      time.
Null value:  None, 0 means 0.
Verbs:
  COSTAR....Plot a symbol on the TV at the specified coordinate.
  COTVLOD...Load a TV image centered on the specified coordinate.
  COWINDOW..Set BLC, TRC centered on a coordinate.
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