Index: trunk/psModules/src/camera/pmFPAWrite.c
===================================================================
--- trunk/psModules/src/camera/pmFPAWrite.c	(revision 16396)
+++ trunk/psModules/src/camera/pmFPAWrite.c	(revision 17911)
@@ -37,5 +37,5 @@
 
 
-// Update the FPA.NAME, CHIP.NAME and CELL.NAME in the FITS header, if required
+// Update the FPA.OBS, CHIP.NAME and CELL.NAME in the FITS header, if required
 bool pmFPAUpdateNames(pmFPA *fpa, pmChip *chip, pmCell *cell)
 {
@@ -55,8 +55,9 @@
     }
     if (fpa) {
-        const char *fpaNameHdr = psMetadataLookupStr(&mdok, fileData, "FPA.NAME");
-        if (mdok && fpaNameHdr && strlen(fpaNameHdr) > 0) {
-            const char *fpaName = psMetadataLookupStr(NULL, fpa->concepts, "FPA.NAME");
-            psMetadataAddStr(hdu->header, PS_LIST_TAIL, fpaNameHdr, PS_META_REPLACE, "FPA name", fpaName);
+        const char *fpaObsHdr = psMetadataLookupStr(&mdok, fileData, "FPA.OBS");
+        if (mdok && fpaObsHdr && strlen(fpaObsHdr) > 0) {
+            const char *fpaObs = psMetadataLookupStr(NULL, fpa->concepts, "FPA.OBS");
+            psMetadataAddStr(hdu->header, PS_LIST_TAIL, fpaObsHdr, PS_META_REPLACE,
+                             "Observation identifier", fpaObs);
         }
     }