consts.lis                                             2008 September 30


SOFA Fortran constants
----------------------

These must be used exactly as presented below.

*  Pi
      DOUBLE PRECISION DPI
      PARAMETER ( DPI = 3.141592653589793238462643D0 )

*  2Pi
      DOUBLE PRECISION D2PI
      PARAMETER ( D2PI = 6.283185307179586476925287D0 )

*  Radians to hours
      DOUBLE PRECISION DR2H
      PARAMETER ( DR2H = 3.819718634205488058453210D0 )

*  Radians to seconds
      DOUBLE PRECISION DR2S
      PARAMETER ( DR2S = 13750.98708313975701043156D0 )

*  Radians to degrees
      DOUBLE PRECISION DR2D
      PARAMETER ( DR2D = 57.29577951308232087679815D0 )

*  Radians to arc seconds
      DOUBLE PRECISION DR2AS
      PARAMETER ( DR2AS = 206264.8062470963551564734D0 )

*  Hours to radians
      DOUBLE PRECISION DH2R
      PARAMETER ( DH2R = 0.2617993877991494365385536D0 )

*  Seconds to radians
      DOUBLE PRECISION DS2R
      PARAMETER ( DS2R = 7.272205216643039903848712D-5 )

*  Degrees to radians
      DOUBLE PRECISION DD2R
      PARAMETER ( DD2R = 1.745329251994329576923691D-2 )

*  Arc seconds to radians
      DOUBLE PRECISION DAS2R
      PARAMETER ( DAS2R = 4.848136811095359935899141D-6 )


SOFA C constants
----------------

The constants used by the C version of SOFA are defined in the header
file sofam.h.
