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diff --git a/src/slalib/eqecl.f b/src/slalib/eqecl.f
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+      SUBROUTINE sla_EQECL (DR, DD, DATE, DL, DB)
+*+
+*     - - - - - -
+*      E Q E C L
+*     - - - - - -
+*
+*  Transformation from J2000.0 equatorial coordinates to
+*  ecliptic coordinates (double precision)
+*
+*  Given:
+*     DR,DD       dp      J2000.0 mean RA,Dec (radians)
+*     DATE        dp      TDB (loosely ET) as Modified Julian Date
+*                                              (JD-2400000.5)
+*  Returned:
+*     DL,DB       dp      ecliptic longitude and latitude
+*                         (mean of date, IAU 1980 theory, radians)
+*
+*  Called:
+*     sla_DCS2C, sla_PREC, sla_EPJ, sla_DMXV, sla_ECMAT, sla_DCC2S,
+*     sla_DRANRM, sla_DRANGE
+*
+*  P.T.Wallace   Starlink   March 1986
+*
+*  Copyright (C) 1995 Rutherford Appleton Laboratory
+*-
+
+      IMPLICIT NONE
+
+      DOUBLE PRECISION DR,DD,DATE,DL,DB
+
+      DOUBLE PRECISION sla_EPJ,sla_DRANRM,sla_DRANGE
+
+      DOUBLE PRECISION RMAT(3,3),V1(3),V2(3)
+
+
+
+*  Spherical to Cartesian
+      CALL sla_DCS2C(DR,DD,V1)
+
+*  Mean J2000 to mean of date
+      CALL sla_PREC(2000D0,sla_EPJ(DATE),RMAT)
+      CALL sla_DMXV(RMAT,V1,V2)
+
+*  Equatorial to ecliptic
+      CALL sla_ECMAT(DATE,RMAT)
+      CALL sla_DMXV(RMAT,V2,V1)
+
+*  Cartesian to spherical
+      CALL sla_DCC2S(V1,DL,DB)
+
+*  Express in conventional ranges
+      DL=sla_DRANRM(DL)
+      DB=sla_DRANGE(DB)
+
+      END