diff --git a/data-discovery/src/main/java/search/DbObstap.java b/data-discovery/src/main/java/search/DbObstap.java
index d6851d4173a16bf0706403df103c5fad3147a5e5..ca9e40a20bf0fcb4e893c6296d3c8e53b3da52ad 100644
--- a/data-discovery/src/main/java/search/DbObstap.java
+++ b/data-discovery/src/main/java/search/DbObstap.java
@@ -33,7 +33,7 @@ public class DbObstap
    }
 
 
-   static class ObsCore
+   static class Obstap
    {
       String dataproduct_type;
       Integer calib_level;
@@ -201,7 +201,7 @@ public class DbObstap
 
 
 
-   public ObsCore[] queryOutputData(String[] pubdidArr, Pos pos, Band band)
+   public Obstap[] queryOutputData(String[] pubdidArr, Pos pos, Band band)
       throws Exception
    {
       LOGGER.fine("trace");
@@ -220,7 +220,7 @@ public class DbObstap
 
       //LOGGER.fine(theQuery);
 
-      List<ObsCore> obsCoreList = new ArrayList<>();
+      List<Obstap> obstapList = new ArrayList<>();
 
       LOGGER.fine("Connecting to: " + dbConnArgs.uri()
             + " with optional user/pwd: " + dbConnArgs.userName() +" / "+ dbConnArgs.password() );
@@ -231,71 +231,71 @@ public class DbObstap
       {
          while (res.next())
          {
-            ObsCore obsCore = new ObsCore();
+            Obstap obstap = new Obstap();
 
-            obsCore.dataproduct_type  = this.getString(res,"dataproduct_type");
-            obsCore.calib_level       = this.getInt(res,"calib_level");
-            obsCore.obs_collection    = this.getString(res,"obs_collection");
-            obsCore.obs_title         = this.getString(res,"obs_title");
-            obsCore.obs_id            = this.getString(res,"obs_id");
-            obsCore.obs_publisher_did = this.getString(res,"obs_publisher_did");
+            obstap.dataproduct_type  = this.getString(res,"dataproduct_type");
+            obstap.calib_level       = this.getInt(res,"calib_level");
+            obstap.obs_collection    = this.getString(res,"obs_collection");
+            obstap.obs_title         = this.getString(res,"obs_title");
+            obstap.obs_id            = this.getString(res,"obs_id");
+            obstap.obs_publisher_did = this.getString(res,"obs_publisher_did");
 
-            obsCore.bib_reference = this.getString(res,"bib_reference");
-            obsCore.data_rights   = this.getString(res,"data_rights");
+            obstap.bib_reference = this.getString(res,"bib_reference");
+            obstap.data_rights   = this.getString(res,"data_rights");
 
-            obsCore.access_url     = this.getString(res,"access_url");
-            obsCore.access_format  = this.getString(res,"access_format");
-            obsCore.access_estsize = this.getLong(res,"access_estsize");
+            obstap.access_url     = this.getString(res,"access_url");
+            obstap.access_format  = this.getString(res,"access_format");
+            obstap.access_estsize = this.getLong(res,"access_estsize");
 
-            obsCore.target_name = this.getString(res,"target_name");
+            obstap.target_name = this.getString(res,"target_name");
 
-            obsCore.s_ra         = this.getDouble(res,"s_ra");
-            obsCore.s_dec        = this.getDouble(res,"s_dec");
-            obsCore.s_fov        = this.getDouble(res,"s_fov");
-            obsCore.s_region     = this.getString(res,"s_region");
-            obsCore.s_xel1       = this.getLong(res,"s_xel1");
-            obsCore.s_xel2       = this.getLong(res,"s_xel2");
-            obsCore.s_resolution = this.getDouble(res,"s_resolution");
+            obstap.s_ra         = this.getDouble(res,"s_ra");
+            obstap.s_dec        = this.getDouble(res,"s_dec");
+            obstap.s_fov        = this.getDouble(res,"s_fov");
+            obstap.s_region     = this.getString(res,"s_region");
+            obstap.s_xel1       = this.getLong(res,"s_xel1");
+            obstap.s_xel2       = this.getLong(res,"s_xel2");
+            obstap.s_resolution = this.getDouble(res,"s_resolution");
 
-            obsCore.t_min         = this.getDouble(res,"t_min");
-            obsCore.t_max         = this.getDouble(res,"t_max");
-            obsCore.t_exptime     = this.getDouble(res,"t_exptime");
-            obsCore.t_resolution  = this.getDouble(res,"t_resolution");
-            obsCore.t_xel         = this.getLong(res,"t_xel");
+            obstap.t_min         = this.getDouble(res,"t_min");
+            obstap.t_max         = this.getDouble(res,"t_max");
+            obstap.t_exptime     = this.getDouble(res,"t_exptime");
+            obstap.t_resolution  = this.getDouble(res,"t_resolution");
+            obstap.t_xel         = this.getLong(res,"t_xel");
 
-            obsCore.em_min       = this.getDouble(res,"em_min"); boolean em_min_valid = !res.wasNull();
-            obsCore.em_max       = this.getDouble(res,"em_max"); boolean em_max_valid = !res.wasNull();
-            obsCore.em_valid     = em_min_valid && em_max_valid;;
-            obsCore.em_res_power = this.getDouble(res,"em_res_power");
-            obsCore.em_xel       = this.getLong(res,"em_xel");
+            obstap.em_min       = this.getDouble(res,"em_min"); boolean em_min_valid = !res.wasNull();
+            obstap.em_max       = this.getDouble(res,"em_max"); boolean em_max_valid = !res.wasNull();
+            obstap.em_valid     = em_min_valid && em_max_valid;;
+            obstap.em_res_power = this.getDouble(res,"em_res_power");
+            obstap.em_xel       = this.getLong(res,"em_xel");
 
-            obsCore.o_ucd = this.getString(res,"o_ucd");
+            obstap.o_ucd = this.getString(res,"o_ucd");
 
-            obsCore.pol_states = this.getString(res,"pol_states");
-            obsCore.pol_xel    = this.getLong(res ,"pol_xel");
+            obstap.pol_states = this.getString(res,"pol_states");
+            obstap.pol_xel    = this.getLong(res ,"pol_xel");
 
-            obsCore.facility_name = this.getString(res,"facility_name");
-            obsCore.instrument_name = this.getString(res,"instrument_name");
+            obstap.facility_name = this.getString(res,"facility_name");
+            obstap.instrument_name = this.getString(res,"instrument_name");
 
             // VLKB extension
 
-            obsCore.s_region_galactic = this.getString(res,"s_region_galactic");
-            obsCore.vel_min           = this.getDouble(res,"vel_min"); //boolean em_min_valid = !res.wasNull();
-            obsCore.vel_max           = this.getDouble(res,"vel_max"); //boolean em_max_valid = !res.wasNull();
+            obstap.s_region_galactic = this.getString(res,"s_region_galactic");
+            obstap.vel_min           = this.getDouble(res,"vel_min"); //boolean em_min_valid = !res.wasNull();
+            obstap.vel_max           = this.getDouble(res,"vel_max"); //boolean em_max_valid = !res.wasNull();
 
             boolean inputInsideDb = res.getBoolean("inputInsideDb");
             boolean dbInsideInput = res.getBoolean("dbInsideInput");
-            obsCore.overlapCodeSky = convertToOverlapCodeSky(inputInsideDb, dbInsideInput);
+            obstap.overlapCodeSky = convertToOverlapCodeSky(inputInsideDb, dbInsideInput);
 
-            obsCore.overlapCodeVel = convertToOverlapCodeVel(band,obsCore.em_valid,obsCore.em_min,obsCore.em_max);
+            obstap.overlapCodeVel = convertToOverlapCodeVel(band,obstap.em_valid,obstap.em_min,obstap.em_max);
 
-            obsCore.overlapCode    = convertToOverlapCode(obsCore.overlapCodeSky, obsCore.overlapCodeVel);
+            obstap.overlapCode    = convertToOverlapCode(obstap.overlapCodeSky, obstap.overlapCodeVel);
 
 
-            obsCoreList.add(obsCore);
+            obstapList.add(obstap);
          }
 
-         LOGGER.fine("From DB collected # of ObsCore : " + obsCoreList.size());
+         LOGGER.fine("From DB collected # of Obstap : " + obstapList.size());
       }
       catch (SQLException se)
       {
@@ -304,7 +304,7 @@ public class DbObstap
          throw new Exception(se.toString());
       }
 
-      ObsCore[] cubes = obsCoreList.toArray(new ObsCore[0]);
+      Obstap[] cubes = obstapList.toArray(new Obstap[0]);
 
       return cubes;
    }
diff --git a/data-discovery/src/main/java/webapi/SearchServlet.java b/data-discovery/src/main/java/webapi/SearchServlet.java
index 537dee8b5c32023dff8de9e53f73603334d77490..f02e40ce430d3350f99947bb23f78c3763198996 100644
--- a/data-discovery/src/main/java/webapi/SearchServlet.java
+++ b/data-discovery/src/main/java/webapi/SearchServlet.java
@@ -76,7 +76,7 @@ public class SearchServlet extends javax.servlet.http.HttpServlet
          if((qArgs.maxrec != null) && (qArgs.maxrec < 0))
             throw new IllegalArgumentException("MAXREC must not be negative: " + qArgs.maxrec);
 
-         /* query Obscore table */
+         /* query Obstap table */
 
          DbObstap dbObstap;
          synchronized(DbObstap.class)
diff --git a/data-discovery/src/main/java/webapi/formatfilter/FormatResponseFilter.java b/data-discovery/src/main/java/webapi/formatfilter/FormatResponseFilter.java
index be53ad94f160923d252a369f43dda2c91353d01d..ec6b89a3c8378344258c955f4ee2ea887a065bc7 100644
--- a/data-discovery/src/main/java/webapi/formatfilter/FormatResponseFilter.java
+++ b/data-discovery/src/main/java/webapi/formatfilter/FormatResponseFilter.java
@@ -64,7 +64,7 @@ public class FormatResponseFilter implements Filter
             Pos  pos  = Pos.parsePos(params, DEFAULT_SKY_SYSTEM);
             Band band = Band.parseBand(params, DEFAULT_SPEC_SYSTEM);
 
-            DbObstap.ObsCore[] obsCoreArr = queryObsCore(responseWrapper.getDbConnArgs(), pubdidArr, pos, band);
+            DbObstap.Obstap[] obstapArr = queryObstap(responseWrapper.getDbConnArgs(), pubdidArr, pos, band);
 
             String respFormat;
             String respFormatReq[] = params.get("RESPONSEFORMAT");
@@ -86,7 +86,7 @@ public class FormatResponseFilter implements Filter
                boolean showDuration = false;
 
                XmlSerializer.serializeToVoTable(responseWriter, RESPONSE_ENCODING,
-                     obsCoreArr,
+                     obstapArr,
                      settings.serviceUrls.cutoutUrl(),
                      showDuration,startTime_msec);
             }
@@ -150,7 +150,7 @@ public class FormatResponseFilter implements Filter
    }
 
 
-   private DbObstap.ObsCore[] queryObsCore(DbConnArgs dbConnArgs, String[] pubdidArr, Pos pos, Band band)
+   private DbObstap.Obstap[] queryObstap(DbConnArgs dbConnArgs, String[] pubdidArr, Pos pos, Band band)
          throws Exception
       {
 
diff --git a/data-discovery/src/main/java/webapi/formatfilter/ObscoreExt.java b/data-discovery/src/main/java/webapi/formatfilter/ObstapExt.java
similarity index 72%
rename from data-discovery/src/main/java/webapi/formatfilter/ObscoreExt.java
rename to data-discovery/src/main/java/webapi/formatfilter/ObstapExt.java
index e847b5f3985d82d29cad3a48d52636e538e93fd8..ce20fccf79bbb346e930c6e2c3c7e9b820d48ccc 100644
--- a/data-discovery/src/main/java/webapi/formatfilter/ObscoreExt.java
+++ b/data-discovery/src/main/java/webapi/formatfilter/ObstapExt.java
@@ -3,7 +3,7 @@
 import uk.ac.starlink.table.*;// ColumnInfo needed
 import uk.ac.starlink.votable.*;
 
-class ObscoreExt
+class ObstapExt
 {
    static private ColumnInfo genPubDidColInfo()
    {
@@ -29,7 +29,7 @@ class ObscoreExt
 
 
 
-   public static final ColumnInfo[] OBSCORE_COLINFO =
+   public static final ColumnInfo[] OBSTAP_COLINFO =
    {
 
       new ColumnInfo( "dataproduct_type",  String.class,  "Dataproduct Type (image|cube)" ),
@@ -75,52 +75,52 @@ class ObscoreExt
       new ColumnInfo( "instrument_name", String.class, "Instrument" ),
    };
 
-   public static Object[] obscoreRow( DbObstap.ObsCore obsCore )
+   public static Object[] obstapRow( DbObstap.Obstap obstap )
    {
       return new Object[]
       {
-         obsCore.dataproduct_type,
-            obsCore.calib_level,
-            obsCore.obs_collection,
-            obsCore.obs_title,
-            obsCore.obs_id,
-            obsCore.obs_publisher_did,
-            obsCore.bib_reference,
-            obsCore.data_rights,
-
-            obsCore.access_url,
-            obsCore.access_format,
-            obsCore.access_estsize,
-
-            obsCore.target_name,
-
-            obsCore.s_ra,
-            obsCore.s_dec,
-            obsCore.s_fov,
-
-            obsCore.s_region,
-            obsCore.s_xel1,
-            obsCore.s_xel2,
-            obsCore.s_resolution,
-
-            obsCore.t_min,
-            obsCore.t_max,
-            obsCore.t_exptime,
-            obsCore.t_resolution,
-            obsCore.t_xel,
-
-            obsCore.em_min,
-            obsCore.em_max,
-            obsCore.em_res_power,
-            obsCore.em_xel,
-
-            obsCore.o_ucd,
-
-            obsCore.pol_states,
-            obsCore.pol_xel,
-
-            obsCore.facility_name,
-            obsCore.instrument_name,
+         obstap.dataproduct_type,
+            obstap.calib_level,
+            obstap.obs_collection,
+            obstap.obs_title,
+            obstap.obs_id,
+            obstap.obs_publisher_did,
+            obstap.bib_reference,
+            obstap.data_rights,
+
+            obstap.access_url,
+            obstap.access_format,
+            obstap.access_estsize,
+
+            obstap.target_name,
+
+            obstap.s_ra,
+            obstap.s_dec,
+            obstap.s_fov,
+
+            obstap.s_region,
+            obstap.s_xel1,
+            obstap.s_xel2,
+            obstap.s_resolution,
+
+            obstap.t_min,
+            obstap.t_max,
+            obstap.t_exptime,
+            obstap.t_resolution,
+            obstap.t_xel,
+
+            obstap.em_min,
+            obstap.em_max,
+            obstap.em_res_power,
+            obstap.em_xel,
+
+            obstap.o_ucd,
+
+            obstap.pol_states,
+            obstap.pol_xel,
+
+            obstap.facility_name,
+            obstap.instrument_name,
       };
    }
 
@@ -138,28 +138,28 @@ class ObscoreExt
       new ColumnInfo( "vel_max",    Double.class, "Velocity max" ),
    };
 
-   public static Object[] vlkbRow( DbObstap.ObsCore obsCore )
+   public static Object[] vlkbRow( DbObstap.Obstap obstap )
    {
       return new Object[]
       {
-         obsCore.overlapCode,
-            obsCore.overlapCodeSky,
-            obsCore.overlapCodeVel,
+         obstap.overlapCode,
+            obstap.overlapCodeSky,
+            obstap.overlapCodeVel,
 
-            obsCore.s_region_galactic,
+            obstap.s_region_galactic,
 
-            obsCore.vel_min,
-            obsCore.vel_max,
+            obstap.vel_min,
+            obstap.vel_max,
       };
    }
 
 
 
-   public static final ColumnInfo[] OBSCORE_VLKB_COLINFO = concat(OBSCORE_COLINFO, VLKB_COLINFO);
+   public static final ColumnInfo[] OBSTAP_VLKB_COLINFO = concat(OBSTAP_COLINFO, VLKB_COLINFO);
 
-   public static Object[] obscoreVlkbRow( DbObstap.ObsCore obsCore )
+   public static Object[] obstapVlkbRow( DbObstap.Obstap obstap )
    {
-      return concat(obscoreRow(obsCore),vlkbRow(obsCore));
+      return concat(obstapRow(obstap),vlkbRow(obstap));
    }
 
 
diff --git a/data-discovery/src/main/java/webapi/formatfilter/XmlSerializer.java b/data-discovery/src/main/java/webapi/formatfilter/XmlSerializer.java
index e54e8771cf1607d33ca3bdc7eab4d4b47f547e02..2dbf9545e4a85c63b13ab882879b894886b14bad 100644
--- a/data-discovery/src/main/java/webapi/formatfilter/XmlSerializer.java
+++ b/data-discovery/src/main/java/webapi/formatfilter/XmlSerializer.java
@@ -22,16 +22,15 @@ final class XmlSerializer
 
    public static void serializeToVoTable(
          PrintWriter writer, String charEncoding,
-         DbObstap.ObsCore[] obsCoreArr,
+         DbObstap.Obstap[] obstapArr,
          String cutoutUrl,
          boolean showDuration, long startTime_msec) throws IOException
    {
-      //StarTable dstable = makeSearchResultsTable( obsCoreArr );
-      /*RowList*/StarTable dstable = new RowListStarTable( ObscoreExt.OBSCORE_VLKB_COLINFO );
+      StarTable dstable = new RowListStarTable( ObstapExt.OBSTAP_VLKB_COLINFO );
 
       dstable.setParameter(new DescribedValue(
                new DefaultValueInfo("datacubeCount", Integer.class, "Count of all datacubes from VLKB-search" ),
-               obsCoreArr.length ) );
+               obstapArr.length ) );
 
       BufferedWriter out = new BufferedWriter( writer );