Index: trunk/psModules/src/astrom/pmAstrometryDistortion.c
===================================================================
--- trunk/psModules/src/astrom/pmAstrometryDistortion.c	(revision 41809)
+++ trunk/psModules/src/astrom/pmAstrometryDistortion.c	(revision 41810)
@@ -347,5 +347,5 @@
     // as of r40806, psPlaneTransformInvert supplies the extra order (if non-linear)
     psFree (fpa->fromTPA);
-    fpa->fromTPA = psPlaneTransformInvert(NULL, fpa->toTPA, *region, 50, 4);
+    fpa->fromTPA = psPlaneTransformInvert(NULL, fpa->toTPA, *region, 100, 6);
     psFree (region);
 
Index: trunk/psModules/src/astrom/pmAstrometryModel.c
===================================================================
--- trunk/psModules/src/astrom/pmAstrometryModel.c	(revision 41809)
+++ trunk/psModules/src/astrom/pmAstrometryModel.c	(revision 41810)
@@ -525,5 +525,5 @@
 	// as of r40806, psPlaneTransformInvert supplies the extra order (if non-linear)
         psFree (chip->fromFPA);
-        chip->fromFPA = psPlaneTransformInvert(NULL, chip->toFPA, *region, 50, 4);
+        chip->fromFPA = psPlaneTransformInvert(NULL, chip->toFPA, *region, 100, 6);
 
         psFree (region);
@@ -592,5 +592,5 @@
     // as of r40806, psPlaneTransformInvert supplies the extra order (if non-linear)
     psFree (file->fpa->fromTPA);
-    file->fpa->fromTPA = psPlaneTransformInvert(NULL, file->fpa->toTPA, *region, 50, 4);
+    file->fpa->fromTPA = psPlaneTransformInvert(NULL, file->fpa->toTPA, *region, 100, 6);
 
     psFree (model);
@@ -745,5 +745,5 @@
 
     psFree (file->fpa->fromTPA);
-    file->fpa->fromTPA = psPlaneTransformInvert(NULL, file->fpa->toTPA, *region, 50, 4);
+    file->fpa->fromTPA = psPlaneTransformInvert(NULL, file->fpa->toTPA, *region,100, 10);
 
     psFree (region);
Index: trunk/psModules/src/astrom/pmAstrometryWCS.c
===================================================================
--- trunk/psModules/src/astrom/pmAstrometryWCS.c	(revision 41809)
+++ trunk/psModules/src/astrom/pmAstrometryWCS.c	(revision 41810)
@@ -608,5 +608,5 @@
     // as of r40806, psPlaneTransformInvert supplies the extra order (if non-linear)
     psFree (chip->fromFPA);
-    chip->fromFPA = psPlaneTransformInvert(NULL, chip->toFPA, *region, 50, 4);
+    chip->fromFPA = psPlaneTransformInvert(NULL, chip->toFPA, *region, 100, 6);
     psFree (region);
 
@@ -668,5 +668,5 @@
     // as of r40806, psPlaneTransformInvert supplies the extra order (if non-linear)
     psFree (chip->fromFPA);
-    chip->fromFPA = psPlaneTransformInvert(NULL, chip->toFPA, *region, 50, 4);
+    chip->fromFPA = psPlaneTransformInvert(NULL, chip->toFPA, *region, 100, 6);
     psFree (region);
 
@@ -706,5 +706,5 @@
       additional_orders = config_additional_orders; 
     }
-    fpa->fromTPA = psPlaneTransformInvert(NULL, fpa->toTPA, region, 50, additional_orders);
+    fpa->fromTPA = psPlaneTransformInvert(NULL, fpa->toTPA, region, 100, additional_orders);
     return true;
 }
@@ -1032,5 +1032,5 @@
 
     // NOTE: the extraOrders value (4) should be ignored since outToFPA is specified to be linear
-    psPlaneTransform *outFromFPA = psPlaneTransformInvert(NULL, outToFPA, *outputBounds, 50, 4);
+    psPlaneTransform *outFromFPA = psPlaneTransformInvert(NULL, outToFPA, *outputBounds, 100, 6);
     if (!outFromFPA) {
         psFree(outToFPA);