Index: trunk/doc/pslib/psLibADD.tex
===================================================================
--- trunk/doc/pslib/psLibADD.tex	(revision 5764)
+++ trunk/doc/pslib/psLibADD.tex	(revision 5913)
@@ -1,3 +1,3 @@
-%%% $Id: psLibADD.tex,v 1.89 2005-12-12 20:55:49 price Exp $
+%%% $Id: psLibADD.tex,v 1.90 2006-01-06 02:09:17 price Exp $
 \documentclass[panstarrs]{panstarrs}
 
@@ -2089,12 +2089,15 @@
 \subparagraph{Corrections to the Model : {\tt psEOC\_PrecessionCorr}}
 
-Corrections to $X$, and $Y$ may be obtained from the IERS as
-part of Bulletin A, or B. It is recommended to use the values
-published daily by USNO in the table
-\code{finals2000A.daily}\footnote{http://maia.usno.navy.mil/ser7/finals2000A.daily},
+Corrections to $X$, and $Y$ may be obtained from the IERS as part of
+Bulletin A, or B. It is recommended to use the values published daily
+by USNO in the table
+\code{finals2000A.data}\footnote{http://maia.usno.navy.mil/ser7/finals2000A.data},
 which has the format described by
 \code{readme.finals2000A}\footnote{http://maia.usno.navy.mil/ser7/readme.finals2000A}. The
-quantities of interest are labeled dX and dY. Note that UT1$-$UTC and
+quantities of interest are labeled dX and dY, which should be
+interpolated using Lagrangian interpolation.  Note that UT1$-$UTC and
 the polar motion values are obtained from this same table.
+
+There is no correction to apply to $S$.
 
 By convention, nutation terms with periods of less than two days are