Index: branches/czw_branch/20160809/Ohana/src/libdvo/src/dbExtractMeasures.c
===================================================================
--- branches/czw_branch/20160809/Ohana/src/libdvo/src/dbExtractMeasures.c	(revision 39916)
+++ branches/czw_branch/20160809/Ohana/src/libdvo/src/dbExtractMeasures.c	(revision 39917)
@@ -461,7 +461,10 @@
       break;
     case MEAS_RA_FIT_OFFSET: /* OK */
+      // RA_epoch_fit = RA_mean + uR*(t - Tmean)/cos(dec) + plx*parR 
+      // note that this extraction ignores parallax
       dT = (measure[0].t - average[0].Tmean) / (86400*365.25);
-      dR = dvoOffsetR (measure, average);
-      value.Flt = dR - average[0].uR * dT;
+      dR = dvoOffsetR (measure, average); // RA_epoch - RA_mean (** NOT local linear distance **)
+      value.Flt = dR*cos(RAD_DEG*measure[0].D) - average[0].uR * dT;
+      // this is the local linear distance of the measurement from the fit 
       break;
     case MEAS_DEC_FIT_OFFSET: /* OK */