Use sprintf() to create a caption:
caption = sprintf('Rocket(%.3f), Chute1(%.3f), Chute2(%.3f)',...
Rocket, Chute1, Chute2);
title(caption, 'FontSize', 16);
You can use %d instead of %.3f if the values are integers rather than floating point. You can put a \n anywhere that you want to go to a new line.