% Fig2_f
figure;
scatter(X1,Y1,30,'linewidth',2);
hold on
plot(X1,Y1,'linewidth',2)
box on
xlim([5.78e9,5.98e9])
ylim([-2,35])
set (gcf, 'Position', [596,546,340,300]);
set(gca, 'TickDir', 'out')