Index: trunk/dbconfig/changes.txt
===================================================================
--- trunk/dbconfig/changes.txt	(revision 34726)
+++ trunk/dbconfig/changes.txt	(revision 34731)
@@ -2255,2 +2255,5 @@
 --update addRun set stage_extra1 = -1 where stage = 'cam' <= 483624; 
 
+ALTER TABLE warpSkyfile add column background_model SMALLINT after maskfrac_advisory;
+ALTER TABLE stackSumSkyfile add column background_model SMALLINT after software_ver;
+UPDATE dbversion set schema_version = '1.1.72', updated= CURRENT_TIMESTAMP();
Index: trunk/dbconfig/stack.md
===================================================================
--- trunk/dbconfig/stack.md	(revision 34726)
+++ trunk/dbconfig/stack.md	(revision 34731)
@@ -53,4 +53,5 @@
     fault              S16    0       # Key
     software_ver    STR         16
+    background_model   S16    0
     quality            S16    0
 END
Index: trunk/dbconfig/warp.md
===================================================================
--- trunk/dbconfig/warp.md	(revision 34726)
+++ trunk/dbconfig/warp.md	(revision 34731)
@@ -74,4 +74,5 @@
     maskfrac_magic  F32     0.0
     maskfrac_advisory F32   0.0
+    background_model  S16   0
 END
 
Index: trunk/ippTools/share/pxadmin_create_tables.sql
===================================================================
--- trunk/ippTools/share/pxadmin_create_tables.sql	(revision 34726)
+++ trunk/ippTools/share/pxadmin_create_tables.sql	(revision 34731)
@@ -996,4 +996,5 @@
     maskfrac_magic FLOAT,
     maskfrac_advisory FLOAT,
+    background_model SMALLINT,
     PRIMARY KEY(warp_id, skycell_id, tess_id),
     KEY(good_frac),
@@ -1078,7 +1079,8 @@
         good_frac FLOAT,
         mjd_obs DOUBLE,
-        quality SMALLINT NOT NULL DEFAULT 0,
         fault SMALLINT,
         software_ver VARCHAR(16),
+	background_model SMALLINT,
+        quality SMALLINT NOT NULL DEFAULT 0,
         PRIMARY KEY(stack_id),
         KEY(dtime_stack),
Index: trunk/ippTools/src/stacktool.c
===================================================================
--- trunk/ippTools/src/stacktool.c	(revision 34726)
+++ trunk/ippTools/src/stacktool.c	(revision 34731)
@@ -1006,4 +1006,6 @@
     PXOPT_LOOKUP_STR(ver_streaks, config->args, "-ver_streaks", false, false);
 
+    PXOPT_LOOKUP_S16(background_model, config->args, "-background_model", false, false);
+    
     psTrace("czw.test",1,"Received versions: pslib %s psmodules %s psphot %s ppstats %s ppstack %s streaks %s\n",
             ver_pslib,ver_psmodules,ver_psphot,ver_ppstats,ver_ppstack,ver_streaks);
@@ -1067,4 +1069,5 @@
                                fault,
                                software_ver,
+			       background_model,
                                quality
           )) {
@@ -1121,5 +1124,5 @@
     PXOPT_COPY_F64(config->args, where, "-mjd_obs_begin", "stackSumSkyfile.mjd_obs", ">=");
     PXOPT_COPY_F64(config->args, where, "-mjd_obs_end", "stackSumSkyfile.mjd_obs", "<=");
-
+    PXOPT_COPY_S16(config->args, where, "-background_model","stackSumSkyfile.background_model", "==");
 
 //  The following three selectors are incompatible with the sql so omit them
Index: trunk/ippTools/src/stacktoolConfig.c
===================================================================
--- trunk/ippTools/src/stacktoolConfig.c	(revision 34726)
+++ trunk/ippTools/src/stacktoolConfig.c	(revision 34731)
@@ -190,4 +190,6 @@
     psMetadataAddStr(addsumskyfileArgs, PS_LIST_TAIL, "-ver_streaks", 0, "define streaksremove version", NULL);
 
+    psMetadataAddS16(addsumskyfileArgs, PS_LIST_TAIL, "-background_model", 0, "define background model version", 0);
+    
     // -sumskyfile
     psMetadata *sumskyfileArgs= psMetadataAlloc();
@@ -201,4 +203,5 @@
     psMetadataAddStr(sumskyfileArgs, PS_LIST_TAIL, "-exp_name", 0,          "search by exposure name", NULL);
 #endif
+    psMetadataAddS16(sumskyfileArgs, PS_LIST_TAIL, "-background_model", 0, "search by background model version", 0);
     psMetadataAddStr(sumskyfileArgs, PS_LIST_TAIL, "-label", PS_META_DUPLICATE_OK,             "search by stackRun.label", NULL);
     psMetadataAddStr(sumskyfileArgs, PS_LIST_TAIL, "-data_group", PS_META_DUPLICATE_OK,        "search by stackRun.data_group (LIKE comparison)", NULL);
Index: trunk/ippTools/src/warptool.c
===================================================================
--- trunk/ippTools/src/warptool.c	(revision 34726)
+++ trunk/ippTools/src/warptool.c	(revision 34731)
@@ -1101,4 +1101,6 @@
     PXOPT_LOOKUP_F32(maskfrac_advisory, config->args, "-maskfrac_advisory", false, false);
 
+    PXOPT_LOOKUP_S16(background_model, config->args, "-background_model", false, false);
+    
     psTrace("czw.test",1,"Received versions: pslib %s psmodules %s psphot %s ppstats %s pswarp %s streaks %s\n",
 	    ver_pslib,ver_psmodules,ver_psphot,ver_ppstats,ver_pswarp,ver_streaks);
@@ -1159,5 +1161,6 @@
 			   maskfrac_dynamic,
 			   maskfrac_magic,
-			   maskfrac_advisory
+			   maskfrac_advisory,
+			   background_model
         )) {
         if (!psDBRollback(config->dbh)) {
@@ -1392,4 +1395,5 @@
     PXOPT_COPY_STR(config->args, where, "-filter",    "rawExp.filter", "LIKE");
     PXOPT_COPY_S64(config->args, where, "-magicked", "warpSkyfile.magicked", "==");
+    PXOPT_COPY_S16(config->args, where, "-background_model", "warpSkyfile.background_model", "==");
     pxAddLabelSearchArgs (config, where, "-label",   "warpRun.label", "LIKE");
     pxAddLabelSearchArgs (config, where, "-data_group",   "warpRun.data_group", "LIKE");
Index: trunk/ippTools/src/warptoolConfig.c
===================================================================
--- trunk/ippTools/src/warptoolConfig.c	(revision 34726)
+++ trunk/ippTools/src/warptoolConfig.c	(revision 34731)
@@ -237,4 +237,5 @@
     psMetadataAddF32(addwarpedArgs, PS_LIST_TAIL, "-maskfrac_advisory", 0, "define advisory mask fraction", NAN);
 
+    psMetadataAddS16(addwarpedArgs, PS_LIST_TAIL, "-background_model", 0, "define background model version", 0);
     
     // -warped
@@ -254,4 +255,5 @@
     psMetadataAddStr(warpedArgs, PS_LIST_TAIL,  "-data_group",  PS_META_DUPLICATE_OK, "search by warpRun data_group", NULL);
     psMetadataAddStr(warpedArgs, PS_LIST_TAIL,  "-dist_group",  PS_META_DUPLICATE_OK, "search by warpRun dist_group", NULL);
+    psMetadataAddS16(warpedArgs, PS_LIST_TAIL,  "-background_model", 0, "search by background model version", 0);
     // add magic related arguments
     pxmagicAddArguments(warpedArgs);