Index: /trunk/Ohana/src/libdvo/src/coordops.c
===================================================================
--- /trunk/Ohana/src/libdvo/src/coordops.c	(revision 10509)
+++ /trunk/Ohana/src/libdvo/src/coordops.c	(revision 10510)
@@ -90,4 +90,9 @@
     }
     if (!strcmp(type, "-ZEA") || !strcmp(type, "-ZPL")) {
+      if (R > 2*DEG_RAD) {
+	*ra = L;
+	*dec = M;
+	return (FALSE);
+      }
       stht = 1 - 0.5*SQ(R*RAD_DEG);
       ctht = sqrt (1 - stht*stht);