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      DOUBLE PRECISION FUNCTION slEJ2D (EPJ)

     - - - - - -
      E J 2 D
     - - - - - -

  Conversion of Julian Epoch to Modified Julian Date (double precision)

  Given:
     EPJ      dp       Julian Epoch

  The result is the Modified Julian Date (JD - 2400000.5).

  Reference:
     Lieske,J.H., 1979. Astron.Astrophys.,73,282.

  P.T.Wallace   Starlink   February 1984

  Copyright (C) 1995 Rutherford Appleton Laboratory
  Copyright (C) 1995 Association of Universities for Research in Astronomy Inc.

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