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author | Joe Hunkeler <jhunkeler@gmail.com> | 2015-08-11 16:51:37 -0400 |
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committer | Joe Hunkeler <jhunkeler@gmail.com> | 2015-08-11 16:51:37 -0400 |
commit | 40e5a5811c6ffce9b0974e93cdd927cbcf60c157 (patch) | |
tree | 4464880c571602d54f6ae114729bf62a89518057 /math/slalib/epb.f | |
download | iraf-osx-40e5a5811c6ffce9b0974e93cdd927cbcf60c157.tar.gz |
Repatch (from linux) of OSX IRAF
Diffstat (limited to 'math/slalib/epb.f')
-rw-r--r-- | math/slalib/epb.f | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/math/slalib/epb.f b/math/slalib/epb.f new file mode 100644 index 00000000..8b492e27 --- /dev/null +++ b/math/slalib/epb.f @@ -0,0 +1,48 @@ + DOUBLE PRECISION FUNCTION slEPB (DATE) +*+ +* - - - - +* E P B +* - - - - +* +* Conversion of Modified Julian Date to Besselian Epoch +* (double precision) +* +* Given: +* DATE dp Modified Julian Date (JD - 2400000.5) +* +* The result is the Besselian Epoch. +* +* Reference: +* Lieske,J.H., 1979. Astron.Astrophys.,73,282. +* +* P.T.Wallace Starlink February 1984 +* +* Copyright (C) 1995 Rutherford Appleton Laboratory +* +* License: +* 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 (see SLA_CONDITIONS); if not, write to the +* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, +* Boston, MA 02110-1301 USA +* +* Copyright (C) 1995 Association of Universities for Research in Astronomy Inc. +*- + + IMPLICIT NONE + + DOUBLE PRECISION DATE + + + slEPB = 1900D0 + (DATE-15019.81352D0)/365.242198781D0 + + END |