Index: trunk/FACT++/src/Time.h
===================================================================
--- trunk/FACT++/src/Time.h	(revision 19389)
+++ trunk/FACT++/src/Time.h	(revision 19390)
@@ -114,11 +114,11 @@
     std::string SecondsTo(const Time & = Time()) const;
 
-    Time GetPrevSunRise(double horizon, const std::string &obs="ORM") const;
-    Time GetNextSunRise(double horizon, const std::string &obs="ORM") const;
+    Time GetPrevSunRise(double horizon, const std::string &obs="") const;
+    Time GetNextSunRise(double horizon, const std::string &obs="") const;
 
-    Time GetPrevSunRise(const std::string &obs="ORM") const;
-    Time GetNextSunRise(const std::string &obs="ORM") const;
+    Time GetPrevSunRise(const std::string &obs="") const;
+    Time GetNextSunRise(const std::string &obs="") const;
 
-    uint32_t NightAsInt(const std::string &obs="ORM") const;
+    uint32_t NightAsInt(const std::string &obs="") const;
 };