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Diffstat (limited to 'math/slalib/doc/djcl.hlp')
-rw-r--r-- | math/slalib/doc/djcl.hlp | 34 |
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diff --git a/math/slalib/doc/djcl.hlp b/math/slalib/doc/djcl.hlp new file mode 100644 index 00000000..a6327c1d --- /dev/null +++ b/math/slalib/doc/djcl.hlp @@ -0,0 +1,34 @@ +.help djcl Jun99 "Slalib Package" +.nf + + SUBROUTINE slDJCL (DJM, IY, IM, ID, FD, J) + + - - - - - + D J C L + - - - - - + + Modified Julian Date to Gregorian year, month, day, + and fraction of a day. + + Given: + DJM dp modified Julian Date (JD-2400000.5) + + Returned: + IY int year + IM int month + ID int day + FD dp fraction of day + J int status: + 0 = OK + -1 = unacceptable date (before 4701BC March 1) + + The algorithm is derived from that of Hatcher 1984 + (QJRAS 25, 53-55). + + P.T.Wallace Starlink 27 April 1998 + + Copyright (C) 1998 Rutherford Appleton Laboratory + Copyright (C) 1995 Association of Universities for Research in Astronomy Inc. + +.fi +.endhelp |