Index: trunk/psastro/src/psastroRefstarSubset.c
===================================================================
--- trunk/psastro/src/psastroRefstarSubset.c	(revision 11471)
+++ trunk/psastro/src/psastroRefstarSubset.c	(revision 12492)
@@ -56,5 +56,11 @@
 
   if (psTraceGetLevel("psastro.dump") > 0) {
-      psastroDumpRefstars (subset, "refstars.subset.dat");
+      pmChip *chip = readout->parent->parent;
+
+      char *filename = NULL;
+      char *chipname = psMetadataLookupStr (NULL, chip->concepts, "CHIP.NAME");
+      psStringAppend (&filename, "refstars.%s.dat", chipname);
+      psastroDumpRefstars (subset, filename);
+      psFree (filename);
   }