; CODECIML ;--------------------------------------------------------------- ;! Convert between decimal and sexagesimal coordinate values ;# VERB COORDINATES ;----------------------------------------------------------------------- ;; Copyright (C) 2012 ;; 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: ;; Internet email: aipsmail@nrao.edu. ;; Postal address: AIPS Project Office ;; National Radio Astronomy Observatory ;; 520 Edgemont Road ;; Charlottesville, VA 22903-2475 USA ;----------------------------------------------------------------------- CODECIML LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC CODECIML: Converts between decimal and sexagesimal coordinates Input adverbs DECIMAL -1.0 1.0 > 0 -> decimal > sexagesimal $Input/output adverbs COORDINA $ Sexagesimal coordinate X $ Right ascension in degrees Y $ Declination in degrees ---------------------------------------------------------------- CODECIML Type: verb Use: To convert between sexagesimal and decimal coordinates. Input adverbs: DECIMAL....> 0 => go from decimal (X, Y) to sexagesimal (COORDINA) Input/output adverbs COORDINA...The X and Y coordinates are found as: Xpos = abs(CO(1)) + abs(CO(2))/60 + abs(CO(3))/3600 if any of CO(1), CO(2), CO(3) < 0: Xpos = -Xpos Ypos = abs(CO(4)) + abs(CO(5))/60 + abs(CO(6))/3600 if any of CO(4), CO(5), CO(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 FITS units (e.g degrees, m/sec, Hz, sec, etc.) except that right ascensions are in hours of time. X..........Right ascension in degrees Y..........Declination in degrees ----------------------------------------------------------------