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48 lines
1.3 KiB
Fortran
48 lines
1.3 KiB
Fortran
DOUBLE PRECISION FUNCTION sla_EPB (DATE)
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*+
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* - - - -
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* E P B
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* - - - -
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*
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* Conversion of Modified Julian Date to Besselian Epoch
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* (double precision)
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*
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* Given:
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* DATE dp Modified Julian Date (JD - 2400000.5)
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*
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* The result is the Besselian Epoch.
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*
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* Reference:
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* Lieske,J.H., 1979. Astron.Astrophys.,73,282.
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*
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* P.T.Wallace Starlink February 1984
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*
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* Copyright (C) 1995 Rutherford Appleton Laboratory
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*
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* License:
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program (see SLA_CONDITIONS); if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA
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*
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*-
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IMPLICIT NONE
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DOUBLE PRECISION DATE
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sla_EPB = 1900D0 + (DATE-15019.81352D0)/365.242198781D0
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END
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