AIPS HELP file for COORDINA in 31DEC09

As of Sun Nov 22 0:02:58 2009

HELP SECTION

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.

EXPLAIN SECTION