Index: /branches/BNC_2.12/src/PPP_SSR_I/pppFilter.cpp
===================================================================
--- /branches/BNC_2.12/src/PPP_SSR_I/pppFilter.cpp	(revision 9280)
+++ /branches/BNC_2.12/src/PPP_SSR_I/pppFilter.cpp	(revision 9281)
@@ -409,4 +409,8 @@
   xyz2ell(xyz, ell);
   double height = ell[2];
+  // Prevent pp from causing segmentation fault (Loukis)
+  if (height > 40000.0 ) {
+    return 0.000000001;
+  }
 
   double pp =  1013.25 * pow(1.0 - 2.26e-5 * height, 5.225);
Index: /branches/BNC_2.12/src/bncwindow.cpp
===================================================================
--- /branches/BNC_2.12/src/bncwindow.cpp	(revision 9280)
+++ /branches/BNC_2.12/src/bncwindow.cpp	(revision 9281)
@@ -188,5 +188,5 @@
   _onTheFlyComboBox = new QComboBox();
   _onTheFlyComboBox->setEditable(false);
-  _onTheFlyComboBox->addItems(QString("no, 1 day,1 hour,5 min,1 min").split(","));
+  _onTheFlyComboBox->addItems(QString("no,1 day,1 hour,5 min,1 min").split(","));
   int ii = _onTheFlyComboBox->findText(settings.value("onTheFlyInterval").toString());
   if (ii != -1) {
Index: /branches/BNC_2.12/src/pppModel.cpp
===================================================================
--- /branches/BNC_2.12/src/pppModel.cpp	(revision 9280)
+++ /branches/BNC_2.12/src/pppModel.cpp	(revision 9281)
@@ -36,5 +36,5 @@
  * Created:    29-Jul-2014
  *
- * Changes:    
+ * Changes:
  *
  * -----------------------------------------------------------------------*/
@@ -90,6 +90,6 @@
   double Mjd_0 = floor(Mjd_UT1);
   double UT1   = Secs*(Mjd_UT1-Mjd_0);
-  double T_0   = (Mjd_0  -MJD_J2000)/36525.0; 
-  double T     = (Mjd_UT1-MJD_J2000)/36525.0; 
+  double T_0   = (Mjd_0  -MJD_J2000)/36525.0;
+  double T     = (Mjd_UT1-MJD_J2000)/36525.0;
 
   double gmst  = 24110.54841 + 8640184.812866*T_0 + 1.002737909350795*UT1
@@ -126,5 +126,5 @@
   const double T  = (Mjd_1-MJD_J2000)/36525.0;
   const double dT = (Mjd_2-Mjd_1)/36525.0;
-  
+
   double zeta  =  ( (2306.2181+(1.39656-0.000139*T)*T)+
                         ((0.30188-0.000344*T)+0.017998*dT)*dT )*dT/RHO_SEC;
@@ -134,5 +134,5 @@
 
   return rotZ(-z) * rotY(theta) * rotZ(-zeta);
-}    
+}
 
 // Sun's position
@@ -144,13 +144,13 @@
 
   double M = 2.0*M_PI * Frac ( 0.9931267 + 99.9973583*T);
-  double L = 2.0*M_PI * Frac ( 0.7859444 + M/2.0/M_PI + 
+  double L = 2.0*M_PI * Frac ( 0.7859444 + M/2.0/M_PI +
                         (6892.0*sin(M)+72.0*sin(2.0*M)) / 1296.0e3);
   double r = 149.619e9 - 2.499e9*cos(M) - 0.021e9*cos(2*M);
-  
-  ColumnVector r_Sun(3); 
+
+  ColumnVector r_Sun(3);
   r_Sun << r*cos(L) << r*sin(L) << 0.0; r_Sun = rotX(-eps) * r_Sun;
 
   return    rotZ(GMST(Mjd_TT))
-          * NutMatrix(Mjd_TT) 
+          * NutMatrix(Mjd_TT)
           * PrecMatrix(MJD_J2000, Mjd_TT)
           * r_Sun;
@@ -169,6 +169,6 @@
   double D   = 2.0*M_PI*Frac ( 0.827361 + 1236.853086*T );
   double F   = 2.0*M_PI*Frac ( 0.259086 + 1342.227825*T );
-    
-  double dL = +22640*sin(l) - 4586*sin(l-2*D) + 2370*sin(2*D) +  769*sin(2*l) 
+
+  double dL = +22640*sin(l) - 4586*sin(l-2*D) + 2370*sin(2*D) +  769*sin(2*l)
               -668*sin(lp) - 412*sin(2*F) - 212*sin(2*l-2*D)- 206*sin(l+lp-2*D)
               +192*sin(l+2*D) - 165*sin(lp-2*D) - 125*sin(D) - 110*sin(l+lp)
@@ -177,28 +177,28 @@
   double L = 2.0*M_PI * Frac( L_0 + dL/1296.0e3 );
 
-  double S  = F + (dL+412*sin(2*F)+541*sin(lp)) / RHO_SEC; 
+  double S  = F + (dL+412*sin(2*F)+541*sin(lp)) / RHO_SEC;
   double h  = F-2*D;
-  double N  = -526*sin(h) + 44*sin(l+h) - 31*sin(-l+h) - 23*sin(lp+h) 
+  double N  = -526*sin(h) + 44*sin(l+h) - 31*sin(-l+h) - 23*sin(lp+h)
               +11*sin(-lp+h) - 25*sin(-2*l+F) + 21*sin(-l+F);
 
   double B = ( 18520.0*sin(S) + N ) / RHO_SEC;
-    
+
   double cosB = cos(B);
 
   double R = 385000e3 - 20905e3*cos(l) - 3699e3*cos(2*D-l) - 2956e3*cos(2*D)
-      -570e3*cos(2*l) + 246e3*cos(2*l-2*D) - 205e3*cos(lp-2*D) 
-      -171e3*cos(l+2*D) - 152e3*cos(l+lp-2*D);   
-
-  ColumnVector r_Moon(3); 
+      -570e3*cos(2*l) + 246e3*cos(2*l-2*D) - 205e3*cos(lp-2*D)
+      -171e3*cos(l+2*D) - 152e3*cos(l+lp-2*D);
+
+  ColumnVector r_Moon(3);
   r_Moon << R*cos(L)*cosB << R*sin(L)*cosB << R*sin(B);
   r_Moon = rotX(-eps) * r_Moon;
-    
-  return    rotZ(GMST(Mjd_TT)) 
-          * NutMatrix(Mjd_TT) 
+
+  return    rotZ(GMST(Mjd_TT))
+          * NutMatrix(Mjd_TT)
           * PrecMatrix(MJD_J2000, Mjd_TT)
           * r_Moon;
 }
 
-// Tidal Correction 
+// Tidal Correction
 ////////////////////////////////////////////////////////////////////////////
 ColumnVector t_tides::displacement(const bncTime& time, const ColumnVector& xyz) {
@@ -239,16 +239,16 @@
   double x2Sun  = 3.0 * L2 * scSun;
   double x2Moon = 3.0 * L2 * scMoon;
-  
+
   const double gmWGS = 398.6005e12;
   const double gms   = 1.3271250e20;
   const double gmm   = 4.9027890e12;
 
-  double facSun  = gms / gmWGS * 
+  double facSun  = gms / gmWGS *
                    (rRec * rRec * rRec * rRec) / (_rSun * _rSun * _rSun);
 
-  double facMoon = gmm / gmWGS * 
+  double facMoon = gmm / gmWGS *
                    (rRec * rRec * rRec * rRec) / (_rMoon * _rMoon * _rMoon);
 
-  ColumnVector dX = facSun  * (x2Sun  * _xSun  + p2Sun  * xyzUnit) + 
+  ColumnVector dX = facSun  * (x2Sun  * _xSun  + p2Sun  * xyzUnit) +
                     facMoon * (x2Moon * _xMoon + p2Moon * xyzUnit);
 
@@ -267,5 +267,5 @@
 // Phase Wind-Up Correction
 ///////////////////////////////////////////////////////////////////////////
-double t_windUp::value(const bncTime& etime, const ColumnVector& rRec, 
+double t_windUp::value(const bncTime& etime, const ColumnVector& rRec,
                        t_prn prn, const ColumnVector& rSat) {
 
@@ -276,5 +276,5 @@
     ColumnVector rho = rRec - rSat;
     rho /= rho.norm_Frobenius();
-    
+
     // GPS Satellite unit Vectors sz, sy, sx
     // -------------------------------------
@@ -289,7 +289,7 @@
     // Effective Dipole of the GPS Satellite Antenna
     // ---------------------------------------------
-    ColumnVector dipSat = sx - rho * DotProduct(rho,sx) 
+    ColumnVector dipSat = sx - rho * DotProduct(rho,sx)
                                                 - crossproduct(rho, sy);
-    
+
     // Receiver unit Vectors rx, ry
     // ----------------------------
@@ -299,30 +299,30 @@
     double recEll[3]; xyz2ell(rRec.data(), recEll) ;
     double neu[3];
-    
+
     neu[0] = 1.0;
     neu[1] = 0.0;
     neu[2] = 0.0;
     neu2xyz(recEll, neu, rx.data());
-    
+
     neu[0] =  0.0;
     neu[1] = -1.0;
     neu[2] =  0.0;
     neu2xyz(recEll, neu, ry.data());
-    
+
     // Effective Dipole of the Receiver Antenna
     // ----------------------------------------
-    ColumnVector dipRec = rx - rho * DotProduct(rho,rx) 
+    ColumnVector dipRec = rx - rho * DotProduct(rho,rx)
                                                    + crossproduct(rho, ry);
-    
+
     // Resulting Effect
     // ----------------
-    double alpha = DotProduct(dipSat,dipRec) / 
+    double alpha = DotProduct(dipSat,dipRec) /
                       (dipSat.norm_Frobenius() * dipRec.norm_Frobenius());
-    
+
     if (alpha >  1.0) alpha =  1.0;
     if (alpha < -1.0) alpha = -1.0;
-    
+
     double dphi = acos(alpha) / 2.0 / M_PI;  // in cycles
-    
+
     if ( DotProduct(rho, crossproduct(dipSat, dipRec)) < 0.0 ) {
       dphi = -dphi;
@@ -339,5 +339,5 @@
   }
 
-  return sumWind[prn.toInt()];  
+  return sumWind[prn.toInt()];
 }
 
@@ -352,7 +352,11 @@
   }
 
-  double ell[3]; 
+  double ell[3];
   xyz2ell(xyz.data(), ell);
   double height = ell[2];
+  // Prevent pp from causing segmentation fault (Loukis)
+  if (height > 40000.0 ) {
+    return 0.000000001;
+  }
 
   double pp =  1013.25 * pow(1.0 - 2.26e-5 * height, 5.225);
@@ -362,11 +366,11 @@
 
   double h_km = height / 1000.0;
-  
+
   if (h_km < 0.0) h_km = 0.0;
   if (h_km > 5.0) h_km = 5.0;
   int    ii   = int(h_km + 1); if (ii > 5) ii = 5;
   double href = ii - 1;
-  
-  double bCor[6]; 
+
+  double bCor[6];
   bCor[0] = 1.156;
   bCor[1] = 1.006;
@@ -375,7 +379,7 @@
   bCor[4] = 0.654;
   bCor[5] = 0.563;
-  
+
   double BB = bCor[ii-1] + (bCor[ii]-bCor[ii-1]) * (h_km - href);
-  
+
   double zen  = M_PI/2.0 - Ele;