Index: /trunk/Ohana/src/opihi/cmd.astro/cgrid.c
===================================================================
--- /trunk/Ohana/src/opihi/cmd.astro/cgrid.c	(revision 40545)
+++ /trunk/Ohana/src/opihi/cmd.astro/cgrid.c	(revision 40546)
@@ -95,4 +95,10 @@
   }
 
+  int MinorSpacing = TRUE;
+  if ((N = get_argument (argc, argv, "-major-spacing"))) {
+    remove_argument (N, &argc, argv);
+    MinorSpacing = FALSE;
+  }
+
   int JustifyRA = 5;
   double JustifyDEC = 5;
@@ -154,8 +160,8 @@
   if (RAbyHour) {
     SetGridScales (&major, &minor, range / 15.0);
-    minorRA = minor * 15.0;
+    minorRA = MinorSpacing ? minor * 15.0 : major * 15.0;
   } else {
     SetGridScales (&major, &minor, range);
-    minorRA = minor;
+    minorRA = MinorSpacing ? minor : major;
   }
   dR = range * GRID_SPACING;
@@ -164,5 +170,5 @@
   range = MIN (fabs(graphmode.coords.cdelt1*(graphmode.xmax-graphmode.xmin)), fabs(graphmode.coords.cdelt2*(graphmode.ymax-graphmode.ymin)));
   SetGridScales (&major, &minor, range);
-  minorDEC = minor;
+  minorDEC = MinorSpacing ? minor : major;
   dD = range * GRID_SPACING;