Index: trunk/psModules/src/concepts/pmConcepts.c
===================================================================
--- trunk/psModules/src/concepts/pmConcepts.c	(revision 20109)
+++ trunk/psModules/src/concepts/pmConcepts.c	(revision 20951)
@@ -543,4 +543,5 @@
         conceptRegisterStr("FPA.FILTER", "Filter used (instrument name)", false, NULL, NULL, PM_FPA_LEVEL_FPA);
         conceptRegisterF32("FPA.POSANGLE", "Position angle of instrument", NULL, NULL, false, PM_FPA_LEVEL_FPA);
+        conceptRegisterF32("FPA.ROTANGLE", "Rotator angle of instrument", NULL, NULL, false, PM_FPA_LEVEL_FPA);
         conceptRegisterStr("FPA.RADECSYS", "Celestial coordinate system", NULL, NULL, false, PM_FPA_LEVEL_FPA);
         conceptRegisterF64("FPA.RA", "Right Ascension of boresight", p_pmConceptParse_FPA_Coords, p_pmConceptFormat_FPA_Coords, false, PM_FPA_LEVEL_FPA);