Index: trunk/psModules/src/objects/pmSourceIO.c
===================================================================
--- trunk/psModules/src/objects/pmSourceIO.c	(revision 26393)
+++ trunk/psModules/src/objects/pmSourceIO.c	(revision 26893)
@@ -40,4 +40,5 @@
 #include "pmPSF.h"
 #include "pmModel.h"
+#include "pmDetections.h"
 #include "pmSource.h"
 #include "pmModelClass.h"
@@ -344,10 +345,17 @@
 
     // if sources is NULL, write out an empty table
-    // input / output sources are stored on the readout->analysis as "PSPHOT.SOURCES" -- a better name might be something like PM_SOURCE_DATA
-    psArray *sources = psMetadataLookupPtr (&status, readout->analysis, "PSPHOT.SOURCES");
+    // input / output sources are stored on the readout->analysis as "PSPHOT.DETECTIONS"
+
+    psArray *sources = NULL;
+    pmDetections *detections = psMetadataLookupPtr (&status, readout->analysis, "PSPHOT.DETECTIONS");
+    if (detections) {
+	sources = detections->allSources;
+    }
     if (!sources) {
+	detections = pmDetectionsAlloc();
         sources = psArrayAlloc(0);
-        psMetadataAddArray(readout->analysis, PS_LIST_TAIL, "PSPHOT.SOURCES", PS_META_REPLACE, "Blank array of sources", sources);
-        psFree(sources); // Held onto by the metadata, so we can continue to use
+	detections->allSources = sources;
+        psMetadataAddPtr(readout->analysis, PS_LIST_TAIL, "PSPHOT.DETECTIONS", PS_DATA_UNKNOWN | PS_META_REPLACE, "Blank array of sources", detections);
+        psFree(detections); // Held onto by the metadata, so we can continue to use
     }
 
@@ -1031,6 +1039,9 @@
     }
     readout->data_exists = true;
-    status = psMetadataAdd (readout->analysis, PS_LIST_TAIL, "PSPHOT.SOURCES", PS_DATA_ARRAY, "input sources", sources);
-    psFree (sources);
+
+    pmDetections *detections = pmDetectionsAlloc();
+    detections->allSources = sources;
+    status = psMetadataAdd (readout->analysis, PS_LIST_TAIL, "PSPHOT.DETECTIONS", PS_DATA_ARRAY, "input sources", detections);
+    psFree (detections);
     return true;
 }
@@ -1124,9 +1135,10 @@
     bool status;
 
-    // select the psf of interest
-    pmPSF *psf = psMetadataLookupPtr (&status, readout->analysis, "PSPHOT.SOURCES");
-    if (!psf) return false;
-    return true;
-}
-
-
+    // select the detections of interest
+    pmDetections *detections = psMetadataLookupPtr (&status, readout->analysis, "PSPHOT.DETECTIONS");
+    if (!detections) return false;
+    if (!detections->allSources) return false;
+    return true;
+}
+
+