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authorJoe Hunkeler <jhunkeler@gmail.com>2015-08-11 16:51:37 -0400
committerJoe Hunkeler <jhunkeler@gmail.com>2015-08-11 16:51:37 -0400
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+.help nut Jun99 "Slalib Package"
+.nf
+
+ SUBROUTINE slNUT (DATE, RMATN)
+
+ - - - -
+ N U T
+ - - - -
+
+ Form the matrix of nutation for a given date - IAU 1980 theory
+ (double precision)
+
+ References:
+ Final report of the IAU Working Group on Nutation,
+ chairman P.K.Seidelmann, 1980.
+ Kaplan,G.H., 1981, USNO circular no. 163, pA3-6.
+
+ Given:
+ DATE dp TDB (loosely ET) as Modified Julian Date
+ (=JD-2400000.5)
+ Returned:
+ RMATN dp(3,3) nutation matrix
+
+ The matrix is in the sense V(true) = RMATN * V(mean)
+
+ Called: slNUTC, slDEUL
+
+ P.T.Wallace Starlink 1 January 1993
+
+ Copyright (C) 1995 Rutherford Appleton Laboratory
+ Copyright (C) 1995 Association of Universities for Research in Astronomy Inc.
+
+.fi
+.endhelp