source: trunk/MagicSoft/slalib/epj2d.c@ 6231

Last change on this file since 6231 was 731, checked in by tbretz, 24 years ago
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1#include "slalib.h"
2#include "slamac.h"
3double slaEpj2d ( double epj )
4/*
5** - - - - - - - - -
6** s l a E p j 2 d
7** - - - - - - - - -
8**
9** Conversion of Julian epoch to Modified Julian Date.
10**
11** (double precision)
12**
13** Given:
14** epj double Julian epoch
15**
16** The result is the Modified Julian Date (JD - 2400000.5).
17**
18** Reference:
19** Lieske,J.H., 1979. Astron. Astrophys.,73,282.
20**
21** Last revision: 31 October 1993
22**
23** Copyright P.T.Wallace. All rights reserved.
24*/
25{
26 return 51544.5 + ( epj - 2000.0 ) * 365.25;
27}
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