Index: trunk/Ohana/src/opihi/lib.data/SplineOps.c
===================================================================
--- trunk/Ohana/src/opihi/lib.data/SplineOps.c	(revision 34584)
+++ trunk/Ohana/src/opihi/lib.data/SplineOps.c	(revision 38441)
@@ -178,7 +178,8 @@
   gfits_create_table (&theader, &ftable);
 
-  gfits_set_bintable_column_reformat (&theader, &ftable, "X_KNOT", "double", myspline->xk, myspline->Nknots);
-  gfits_set_bintable_column_reformat (&theader, &ftable, "Y_KNOT", "double", myspline->yk, myspline->Nknots);
-  gfits_set_bintable_column_reformat (&theader, &ftable, "DY2_DX", "double", myspline->y2, myspline->Nknots);
+  // NOTE: if we want to compress the output table, use native byte order here (last element)
+  gfits_set_bintable_column_reformat (&theader, &ftable, "X_KNOT", "double", myspline->xk, myspline->Nknots, FALSE);
+  gfits_set_bintable_column_reformat (&theader, &ftable, "Y_KNOT", "double", myspline->yk, myspline->Nknots, FALSE);
+  gfits_set_bintable_column_reformat (&theader, &ftable, "DY2_DX", "double", myspline->y2, myspline->Nknots, FALSE);
 
   if (!append) {