diff options
Diffstat (limited to 'src/slalib/epj.f')
| -rw-r--r-- | src/slalib/epj.f | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/slalib/epj.f b/src/slalib/epj.f new file mode 100644 index 0000000..66d5eb9 --- /dev/null +++ b/src/slalib/epj.f @@ -0,0 +1,29 @@ + DOUBLE PRECISION FUNCTION sla_EPJ (DATE) +*+ +* - - - - +* E P J +* - - - - +* +* Conversion of Modified Julian Date to Julian Epoch (double precision) +* +* Given: +* DATE dp Modified Julian Date (JD - 2400000.5) +* +* The result is the Julian Epoch. +* +* Reference: +* Lieske,J.H., 1979. Astron.Astrophys.,73,282. +* +* P.T.Wallace Starlink February 1984 +* +* Copyright (C) 1995 Rutherford Appleton Laboratory +*- + + IMPLICIT NONE + + DOUBLE PRECISION DATE + + + sla_EPJ = 2000D0 + (DATE-51544.5D0)/365.25D0 + + END |