S66-54455 (13 Sept. 1966) --- Astronaut Richard F. Gordon Jr., Gemini-11 pilot, attaches a tether line from his spacecraft to the Agena Target Docking Vehicle (ATDV) during a spacewalk. This view was taken over the Atlantic Ocean at approximately 160 miles above Earth on Sept. 13, 1966. With the aid of the ATDV, Gordon and astronaut Charles (Pete) Conrad Jr., command pilot, set a new altitude record of 750 miles during the GT-11 mission.