Index: trunk/ippToPsps/config/tables.OB.vot
===================================================================
--- trunk/ippToPsps/config/tables.OB.vot	(revision 39032)
+++ trunk/ippToPsps/config/tables.OB.vot	(revision 39081)
@@ -4,5 +4,17 @@
   <RESOURCE>
     <TABLE name="ObjectThin">
-      <DESCRIPTION>Contains the positional information for objects in a number of coordinate systems.  The objects associate single epoch detections and the stacked detections within a one arcsecond radius.  The position of an object in the stack is used as the basis for coordinates when available, with the mean position from the single epoch data when it is not.  The right ascension and declination for both the stack and single epoch mean is provided.  The number of detections in each filter from single epoch data is listed, along with which filters the object has a stack detection.  References: Szalay, A. S., Gray, J., Fekete, G., et al. 2007, arXiv:cs/0701164.</DESCRIPTION>
+
+      <DESCRIPTION>Contains the positional information for objects in
+      a number of coordinate systems.  The objects associate single
+      epoch detections and the stacked detections within a one
+      arcsecond radius.  The mean position from the single epoch data
+      is used as the basis for coordinates when available, or the
+      position of an object in the stack when it is not.  The right
+      ascension and declination for both the stack and single epoch
+      mean is provided.  The number of detections in each filter from
+      single epoch data is listed, along with which filters the object
+      has a stack detection.  References: Szalay, A. S., Gray, J.,
+      Fekete, G., et al. 2007, arXiv:cs/0701164.</DESCRIPTION>
+
       <PARAM arraysize="1" datatype="char" ucd="meta.bib.author" name="Author" value="PSPS"></PARAM>
       <FIELD name="objName" arraysize="32" datatype="char" unit="dimensionless"  default="NA">
@@ -64,8 +76,8 @@
       </FIELD>
       <FIELD name="raStack" arraysize="1" datatype="double" unit="degrees" default="-999">
-        <DESCRIPTION>Right ascension mean from stack detections.</DESCRIPTION>
+        <DESCRIPTION>Right ascension from stack detections, weighted mean value across filters, in equinox J2000.  See StackObjectThin for stack epoch information.</DESCRIPTION>
       </FIELD>
       <FIELD name="decStack" arraysize="1" datatype="double" unit="degrees" default="-999">
-        <DESCRIPTION>Declination mean from stack detections.</DESCRIPTION>
+        <DESCRIPTION>Declination from stack detections, weighted mean value across filters, in equinox J2000.  See StackObjectThin for stack epoch information.</DESCRIPTION>
       </FIELD>
       <FIELD name="raStackErr" arraysize="1" datatype="float" unit="arcsec" default="-999">
@@ -76,8 +88,8 @@
       </FIELD>
       <FIELD name="raMean" arraysize="1" datatype="double" unit="degrees" default="-999">
-        <DESCRIPTION>Right ascension mean from single epoch detections.</DESCRIPTION>
+        <DESCRIPTION>Right ascension from single epoch detections (weighted mean) in equinox J2000 at the mean epoch given by epochMean.</DESCRIPTION>
       </FIELD>
       <FIELD name="decMean" arraysize="1" datatype="double" unit="degrees" default="-999">
-        <DESCRIPTION>Declination mean from single epoch detections.</DESCRIPTION>
+        <DESCRIPTION>Declination from single epoch detections (weighted mean) in equinox J2000 at the mean epoch given by epochMean.</DESCRIPTION>
       </FIELD>
       <FIELD name="raMeanErr" arraysize="1" datatype="float" unit="arcsec" default="-999">
@@ -86,4 +98,7 @@
       <FIELD name="decMeanErr" arraysize="1" datatype="float" unit="arcsec" default="-999">
         <DESCRIPTION>Declination standard deviation from single epoch detections.</DESCRIPTION>
+      </FIELD>
+      <FIELD name="epochMean" arraysize="1" datatype="double" unit="days" default="-999">
+        <DESCRIPTION>Modified Julian Date of the mean epoch corresponding to raMean, decMean (equinox J2000).</DESCRIPTION>
       </FIELD>
       <FIELD name="posMeanChisq" arraysize="1" datatype="float" unit="dimensionless" default="-999">
@@ -140,5 +155,15 @@
     </TABLE>
     <TABLE name="MeanObject">
-      <DESCRIPTION>Contains the mean photometric information for objects based on the single epoch data, calculated as described in Magnier et al (2013).  PSF, Kron (1980), and aperture magnitudes and statistics are listed for all filters.  References: Kron, R. G. 1980, ApJS, 43, 305; Magnier, E. A., Schlafly, E., Finkbeiner, D., et al. 2013, ApJS, 205, 20.</DESCRIPTION>
+
+      <DESCRIPTION>Contains the mean photometric information for
+      objects based on the single epoch data, calculated as described
+      in Magnier et al (2013).  To be included in this table, an
+      object must be bright enough to have been detected at least once
+      in an individual exposure.  PSF, Kron (1980), and aperture
+      magnitudes and statistics are listed for all filters.
+      References: Kron, R. G. 1980, ApJS, 43, 305; Magnier, E. A.,
+      Schlafly, E., Finkbeiner, D., et al. 2013, ApJS, 205,
+      20.</DESCRIPTION>
+
       <PARAM arraysize="1" datatype="char" ucd="meta.bib.author" name="Author" value="PSPS"></PARAM>
       <FIELD name="objID" arraysize="1" datatype="long" unit="dimensionless" default="NA">