Index: trunk/FACT++/scripts/Main.js
===================================================================
--- trunk/FACT++/scripts/Main.js	(revision 19918)
+++ trunk/FACT++/scripts/Main.js	(revision 19919)
@@ -897,4 +897,7 @@
 var system_on;  // undefined
 
+if (sun.observatory!="ORM")
+    throw new Error("Default observatory set to '"+sun.observatory+"' not as it ought to be [ORM]!");
+
 function processIrq()
 {