Index: trunk/pswarp/src/pswarpUpdateMetadata.c
===================================================================
--- trunk/pswarp/src/pswarpUpdateMetadata.c	(revision 35563)
+++ trunk/pswarp/src/pswarpUpdateMetadata.c	(revision 36835)
@@ -78,4 +78,40 @@
 		psFree(md5string);
 		psFree(headerName);
+
+		bool status;
+		psString keyword = NULL;
+		psString mapstring = NULL;
+
+		// we (should) have an array of chipnames on the analysis
+		psArray *chipnames = psMetadataLookupPtr(&status, readout->analysis, PSWARP_ANALYSIS_CHIPNAMES); 
+		for (int i = 0; chipnames && (i < chipnames->n); i++) {
+		  psStringAppend (&keyword, "SRC_%04d", i);
+		  psMetadataAddStr(hdu->header, PS_LIST_TAIL, keyword, PS_META_REPLACE, "input image", chipnames->data[i]);
+		  psFree (keyword);
+		}
+
+		// we (should) have an array of chipnames on the analysis
+		psArray *chipRegions = psMetadataLookupPtr(&status, readout->analysis, PSWARP_ANALYSIS_CHIPREGIONS); 
+		for (int i = 0; chipRegions && (i < chipRegions->n); i++) {
+		  psStringAppend (&keyword, "SEC_%04d", i);
+		  psMetadataAddStr(hdu->header, PS_LIST_TAIL, keyword, PS_META_REPLACE, "input image", chipRegions->data[i]);
+		  psFree (keyword);
+		}
+
+		// we (should) also have an array of backwards maps (warp->chip) for the above chips
+		psArray *backmaps  = psMetadataLookupPtr(&status, readout->analysis, PSWARP_ANALYSIS_BACKMAPS); // 
+		for (int i = 0; backmaps && (i < backmaps->n); i++) {
+		  psPlaneTransform *map = backmaps->data[i];		  
+		  psStringAppend (&keyword, "MPX_%04d", i);
+		  psStringAppend (&mapstring, "[%8.2f,%8.4f,%8.4f]", map->x->coeff[0][0], map->x->coeff[1][0], map->x->coeff[0][1]);
+		  psMetadataAddStr(hdu->header, PS_LIST_TAIL, keyword, PS_META_REPLACE, "warp to image map", mapstring);
+		  psFree (keyword);
+		  psFree (mapstring);
+		  psStringAppend (&keyword, "MPY_%04d", i);
+		  psStringAppend (&mapstring, "[%8.2f,%8.4f,%8.4f]", map->y->coeff[0][0], map->y->coeff[1][0], map->y->coeff[0][1]);
+		  psMetadataAddStr(hdu->header, PS_LIST_TAIL, keyword, PS_META_REPLACE, "warp to image map", mapstring);
+		  psFree (keyword);
+		  psFree (mapstring);
+		}
 	    }