Fighter left behind after picking a jump gate in Timelines Graph 4 President's end

I need someone to explain to me how this mission works. When I dock my space suit with the ARG Mercury to talk with the captain and select a jump gate. The ship starts moving immediately, and I don't have time to go out in my space suit to re-enter the fighter. At this point, I need 200m/s counter-velocity in my space suit to fly back to it, which is impossible. And without my fighter, the Mercury gets shot down before it reaches the jump gate.

How the heck do I get back to my Buzzard???