Index: trunk/BNS/bns.cpp
===================================================================
--- trunk/BNS/bns.cpp	(revision 2374)
+++ trunk/BNS/bns.cpp	(revision 2408)
@@ -595,9 +595,9 @@
     }
     
-    ColumnVector dx = xB.Rows(1,3) - xyz;
+    ColumnVector dx = xyz - xB.Rows(1,3);
     
     if (ii == 1) {
       XYZ_to_RSW(xB.Rows(1,3), vv, dx, rsw);
-      dClk = (xB(4) - xx(4)) * 299792458.0;
+      dClk = (xx(4) + xx(5) - xB(4)) * 299792458.0;
     }
     else {