diff --git a/src/main/java/org/ecocean/Encounter.java b/src/main/java/org/ecocean/Encounter.java
index 4fc0858f01..da7d7d2d0f 100644
--- a/src/main/java/org/ecocean/Encounter.java
+++ b/src/main/java/org/ecocean/Encounter.java
@@ -4119,7 +4119,8 @@ public void opensearchDocumentSerializer(JsonGenerator jgen)
 
         Double dlat = this.getDecimalLatitudeAsDouble();
         Double dlon = this.getDecimalLongitudeAsDouble();
-        if ((dlat == null) || (dlon == null)) {
+        if ((dlat == null) || !Util.isValidDecimalLatitude(dlat) || (dlon == null) ||
+            !Util.isValidDecimalLongitude(dlon)) {
             jgen.writeNullField("locationGeoPoint");
         } else {
             jgen.writeObjectFieldStart("locationGeoPoint");
@@ -4300,7 +4301,13 @@ public static int[] opensearchSyncIndex(Shepherd myShepherd, int stopAfter)
         int ct = 0;
         for (String id : needIndexing) {
             Encounter enc = myShepherd.getEncounter(id);
-            if (enc != null) os.index(indexName, enc);
+            try {
+                if (enc != null) os.index(indexName, enc);
+            } catch (Exception ex) {
+                System.out.println("Encounter.opensearchSyncIndex(): index failed " + enc + " => " +
+                    ex.toString());
+                ex.printStackTrace();
+            }
             if (ct % 500 == 0)
                 System.out.println("Encounter.opensearchSyncIndex needIndexing: " + ct + "/" +
                     rtn[0]);
diff --git a/src/main/webapp/appadmin/opensearchSync.jsp b/src/main/webapp/appadmin/opensearchSync.jsp
index b913c7a9a8..ccde192a20 100644
--- a/src/main/webapp/appadmin/opensearchSync.jsp
+++ b/src/main/webapp/appadmin/opensearchSync.jsp
@@ -8,6 +8,8 @@ org.ecocean.*
 
 <%
 System.out.println("opensearchSync.jsp begun...");
+long timer = System.currentTimeMillis();
+Util.mark("opensearchSync begin");
 
 boolean resetIndex = Util.requestParameterSet(request.getParameter("resetIndex"));
 
@@ -23,6 +25,14 @@ if ("".equals(fstr)) {
 
 if (forceNum == 0) forceNum = 999999;
 
+String sstr = request.getParameter("startNum");
+int startNum = -1;
+if (sstr != null) {
+    try {
+        startNum = Integer.parseInt(sstr);
+    } catch (Exception ex) {}
+}
+
 Shepherd myShepherd = new Shepherd(request);
 OpenSearch os = new OpenSearch();
 
@@ -45,10 +55,19 @@ if (forceNum > 0) {
     while (itr.hasNext()) {
             Encounter enc = (Encounter)itr.next();
             if (!Util.stringExists(enc.getId())) continue;
+            ct++;
+            if (startNum > 0) {
+                if (ct < startNum) continue;
+                if (ct == startNum) System.out.println("opensearchSync.jsp: starting at " + startNum);
+            }
             //System.out.println(enc.getId() + ": " + enc.getVersion());
-            enc.opensearchIndex();
+            try {
+                enc.opensearchIndex();
+            } catch (Exception ex) {
+                System.out.println("opensearchSync.jsp: exception failure on " + enc);
+                ex.printStackTrace();
+            }
             if (ct % 100 == 0) System.out.println("opensearchSync.jsp: count " + ct);
-            ct++;
             if (ct > forceNum) break;
     }
 
@@ -62,5 +81,6 @@ myShepherd.rollbackAndClose();
 
 os.deleteAllPits();
 System.out.println("opensearchSync.jsp finished");
+Util.mark("opensearchSync ended", timer);
 
 %>