load Tow_01.txt
height=Tow_01(:,1);
A=Tow_01(:,6)/100000;
PH=Tow_01(:,7);

figure(1); fig_portrait
subplot(3,2,1)
plot(A,height,'--',A,height,'o');
axis([0 3 -50 50])
text(1.5,-40,'Tow 1')

