Index: /trunk/ippTools/src/dettool.c
===================================================================
--- /trunk/ippTools/src/dettool.c	(revision 11479)
+++ /trunk/ippTools/src/dettool.c	(revision 11480)
@@ -768,4 +768,117 @@
             psFree(time);
         }
+
+	/** selection based on airmass range **/
+        psF32 select_airmass_min = psMetadataLookupF32(&status, config->args, "-select_airmass_min");
+        if (!status) {
+            psError(PS_ERR_UNKNOWN, false, "failed to lookup value for -select_airmass_min");
+            psFree(where);
+            return false;
+        }
+        if (isfinite(select_airmass_min)) {
+            if (!psMetadataAddF32(where, PS_LIST_TAIL, "airmass", PS_META_DUPLICATE_OK, ">=", select_airmass_min)) {
+                psError(PS_ERR_UNKNOWN, false, "failed to add item airmass");
+                psFree(where);
+                return false;
+            }
+        }
+        psF32 select_airmass_max = psMetadataLookupF32(&status, config->args, "-select_airmass_max");
+        if (!status) {
+            psError(PS_ERR_UNKNOWN, false, "failed to lookup value for -select_airmass_max");
+            psFree(where);
+            return false;
+        }
+        if (isfinite(select_airmass_max)) {
+            if (!psMetadataAddF32(where, PS_LIST_TAIL, "airmass", PS_META_DUPLICATE_OK, "<=", select_airmass_max)) {
+                psError(PS_ERR_UNKNOWN, false, "failed to add item airmass");
+                psFree(where);
+                return false;
+            }
+        }
+
+	/** selection based on exp_time range **/
+        psF32 select_exp_time_min = psMetadataLookupF32(&status, config->args, "-select_exp_time_min");
+        if (!status) {
+            psError(PS_ERR_UNKNOWN, false, "failed to lookup value for -select_exp_time_min");
+            psFree(where);
+            return false;
+        }
+        if (isfinite(select_exp_time_min)) {
+            if (!psMetadataAddF32(where, PS_LIST_TAIL, "exp_time", PS_META_DUPLICATE_OK, ">=", select_exp_time_min)) {
+                psError(PS_ERR_UNKNOWN, false, "failed to add item exp_time");
+                psFree(where);
+                return false;
+            }
+        }
+        psF32 select_exp_time_max = psMetadataLookupF32(&status, config->args, "-select_exp_time_max");
+        if (!status) {
+            psError(PS_ERR_UNKNOWN, false, "failed to lookup value for -select_exp_time_max");
+            psFree(where);
+            return false;
+        }
+        if (isfinite(select_exp_time_max)) {
+            if (!psMetadataAddF32(where, PS_LIST_TAIL, "exp_time", PS_META_DUPLICATE_OK, "<=", select_exp_time_max)) {
+                psError(PS_ERR_UNKNOWN, false, "failed to add item exp_time");
+                psFree(where);
+                return false;
+            }
+        }
+
+	/** selection based on ccd_temp range **/
+        psF32 select_ccd_temp_min = psMetadataLookupF32(&status, config->args, "-select_ccd_temp_min");
+        if (!status) {
+            psError(PS_ERR_UNKNOWN, false, "failed to lookup value for -select_ccd_temp_min");
+            psFree(where);
+            return false;
+        }
+        if (isfinite(select_ccd_temp_min)) {
+            if (!psMetadataAddF32(where, PS_LIST_TAIL, "ccd_temp", PS_META_DUPLICATE_OK, "<=", select_ccd_temp_min)) {
+                psError(PS_ERR_UNKNOWN, false, "failed to add item ccd_temp");
+                psFree(where);
+                return false;
+            }
+        }
+        psF32 select_ccd_temp_max = psMetadataLookupF32(&status, config->args, "-select_ccd_temp_max");
+        if (!status) {
+            psError(PS_ERR_UNKNOWN, false, "failed to lookup value for -select_ccd_temp_max");
+            psFree(where);
+            return false;
+        }
+        if (isfinite(select_ccd_temp_max)) {
+            if (!psMetadataAddF32(where, PS_LIST_TAIL, "ccd_temp", PS_META_DUPLICATE_OK, ">=", select_ccd_temp_max)) {
+                psError(PS_ERR_UNKNOWN, false, "failed to add item ccd_temp");
+                psFree(where);
+                return false;
+            }
+        }
+
+	/** selection based on posang **/
+        psF32 select_posang_min = psMetadataLookupF32(&status, config->args, "-select_posang_min");
+        if (!status) {
+            psError(PS_ERR_UNKNOWN, false, "failed to lookup value for -select_posang_min");
+            psFree(where);
+            return false;
+        }
+        if (isfinite(select_posang_min)) {
+            if (!psMetadataAddF32(where, PS_LIST_TAIL, "posang", PS_META_DUPLICATE_OK, "<=", select_posang_min)) {
+                psError(PS_ERR_UNKNOWN, false, "failed to add item posang");
+                psFree(where);
+                return false;
+            }
+        }
+        psF32 select_posang_max = psMetadataLookupF32(&status, config->args, "-select_posang_max");
+        if (!status) {
+            psError(PS_ERR_UNKNOWN, false, "failed to lookup value for -select_posang_max");
+            psFree(where);
+            return false;
+        }
+        if (isfinite(select_posang_max)) {
+            if (!psMetadataAddF32(where, PS_LIST_TAIL, "posang", PS_META_DUPLICATE_OK, ">=", select_posang_max)) {
+                psError(PS_ERR_UNKNOWN, false, "failed to add item posang");
+                psFree(where);
+                return false;
+            }
+        }
+
     }
 
Index: /trunk/ippTools/src/dettoolConfig.c
===================================================================
--- /trunk/ippTools/src/dettoolConfig.c	(revision 11479)
+++ /trunk/ippTools/src/dettoolConfig.c	(revision 11480)
@@ -165,4 +165,20 @@
     psMetadataAddStr(definebyqueryArgs, PS_LIST_TAIL, "-select_dateobs_end", 0,
             "search for exposures by time (<)", NULL);
+    psMetadataAddF32(definebyqueryArgs, PS_LIST_TAIL, "-select_airmass_min",  0,
+            "define min airmass", NAN);
+    psMetadataAddF32(definebyqueryArgs, PS_LIST_TAIL, "-select_airmass_max",  0,
+            "define max airmass", NAN);
+    psMetadataAddF32(definebyqueryArgs, PS_LIST_TAIL, "-select_exp_time_min",  0,
+            "define min exposure time", NAN);
+    psMetadataAddF32(definebyqueryArgs, PS_LIST_TAIL, "-select_exp_time_max",  0,
+            "define max exposure time", NAN);
+    psMetadataAddF64(definebyqueryArgs, PS_LIST_TAIL, "-select_ccd_temp_min",  0,
+            "define min ccd tempature", NAN);
+    psMetadataAddF64(definebyqueryArgs, PS_LIST_TAIL, "-select_ccd_temp_max",  0,
+            "define max ccd tempature", NAN);
+    psMetadataAddF64(definebyqueryArgs, PS_LIST_TAIL, "-select_posang_min",  0,
+            "define min rotator position angle", NAN);
+    psMetadataAddF64(definebyqueryArgs, PS_LIST_TAIL, "-select_posang_max",  0,
+            "define max rotator position angle", NAN);
     psMetadataAddBool(definebyqueryArgs, PS_LIST_TAIL, "-pretend",  0,
             "print the exposures that would be included in the detrend run and exit", false);