Index: trunk/BNC/src/bncephuser.cpp
===================================================================
--- trunk/BNC/src/bncephuser.cpp	(revision 7845)
+++ trunk/BNC/src/bncephuser.cpp	(revision 7847)
@@ -224,5 +224,5 @@
   }
   else if (eph->type() == t_eph::QZSS) {
-    if (timeDiff > 1*1800) {
+    if (timeDiff > 4*3600) { // orbit parameters are valid for 7200 seconds (at minimum)
       eph->setCheckState(t_eph::outdated);
       return;
@@ -257,5 +257,5 @@
 
     // some lines to allow update of ephemeris data sets after outage
-    if      (eph->type() == t_eph::GPS    && dt > 4*3600) {
+    if      (eph->type() == t_eph::GPS     && dt > 4*3600) {
       ephL->setCheckState(t_eph::outdated);
       return;
@@ -269,13 +269,13 @@
       return;
     }
-    else if (eph->type() == t_eph::QZSS    && dt > 1*1800) {
-      ephL->setCheckState(t_eph::outdated);
-      return;
-    }
-    else if  (eph->type() == t_eph::SBAS   && dt > 600)   {
-      ephL->setCheckState(t_eph::outdated);
-      return;
-    }
-    else if  (eph->type() == t_eph::BDS    && dt > 6*3600)   {
+    else if (eph->type() == t_eph::QZSS    && dt > 4*3600) {
+      ephL->setCheckState(t_eph::outdated);
+      return;
+    }
+    else if  (eph->type() == t_eph::SBAS   && dt > 600)    {
+      ephL->setCheckState(t_eph::outdated);
+      return;
+    }
+    else if  (eph->type() == t_eph::BDS    && dt > 6*3600) {
       ephL->setCheckState(t_eph::outdated);
       return;
Index: trunk/BNC/src/bnchelp.html
===================================================================
--- trunk/BNC/src/bnchelp.html	(revision 7845)
+++ trunk/BNC/src/bnchelp.html	(revision 7847)
@@ -4219,5 +4219,5 @@
 <li>BDS ephemeris will be interpreted as outdated and ignored when older than 6 hours.</li>
 <li>SBAS ephemeris will be interpreted as outdated and ignored when older than 10 minutes.</li>
-<li>QZSS ephemeris will be interpreted as outdated and ignored when older than 30 minutes.</li>
+<li>QZSS ephemeris will be interpreted as outdated and ignored when older than 4 hours.</li>
 </ul>
 A note 'OUTDATED EPHEMERIS' will be given in the logfile and the data will be disregarded when necessary.