%matlab time series of flight through model(ions)
     clf
     load ionfoxTA9  -ascii;    
        alt=ionfoxTA9  (:,5);
        den1=ionfoxTA9 (:,2);
        den2=ionfoxTA9 (:,3);
        den3=ionfoxTA9 (:,4);
semilogy(den1,alt,'b-x')
     plot(den1,alt,'b-','linewidth',2)
     axis([-3,3,600,3050])
     xlabel ('Log Denstiy (cm^-^3)','fontsize',16)
     ylabel ('Altitude (km)','fontsize',16)
     title( 'Fox-Yelle Model of Ions in Titans Ionosphere','fontsize',16)
hold on
     plot(den2,alt,'r-','linewidth',2)
hold on     
     plot(den3,alt,'k-','linewidth',2)
     
            legend('H','H_2','H_3')
