After collecting up their respective tools, the astronauts then headed to their first prepared workstations.Spacewalks: How they work and major milestonesWhile Marshburn recovered a portable foot restraint to install to the end of the stations Canadarm2 robotic arm, Barron made her way to the ExPRESS (EXpedite the PRocessing of Experiments to Space Station) Logistics Carrier-3 (ELC-3), a platform installed on the Port 1 (P1) truss where the spare antenna was stored. Another unit was still operating and the area station still had complete use of its high-rate KU-band communications system to relay video, objective supervisors chose to change the malfunctioning antenna to preserve redundancy.NASA astronauts Tom Marshburn (at left) and Kayla Barron are seen outside the Quest airlock at the International Space Station throughout a spacewalk on Thursday, Dec. 2, 2021. Related: Building the International Space Station (images) NASA astronaut Tom Marshburn is seen at the end of the Canadarm2 robotic arm from the viewpoint of astronaut Kayla Barrons helmet cam throughout a spacewalk outside of the International Space Station on Thursday, Dec. 2, 2021.
Marshburn and Barron started the spacewalk at 6:15 a.m. EST (1115 GMT), switching their extravehicular movement system (EMU) spacesuits to internal battery power shortly before leaving the stations U.S. Quest airlock. After collecting up their particular tools, the astronauts then headed to their very first prepared workstations.Spacewalks: How they work and significant milestonesWhile Marshburn retrieved a portable foot restraint to mount to the end of the stations Canadarm2 robotic arm, Barron made her way to the ExPRESS (EXpedite the PRocessing of Experiments to Space Station) Logistics Carrier-3 (ELC-3), a platform mounted on the Port 1 (P1) truss where the extra antenna was kept. Another unit was still operating and the space station still had full usage of its high-rate KU-band interactions system to relay video, mission supervisors decided to replace the faulty antenna to preserve redundancy.NASA astronauts Tom Marshburn (at left) and Kayla Barron are seen outside the Quest airlock at the International Space Station throughout a spacewalk on Thursday, Dec. 2, 2021. Related: Building the International Space Station (images) NASA astronaut Tom Marshburn is seen at the end of the Canadarm2 robotic arm from the point of view of astronaut Kayla Barrons helmet electronic camera throughout a spacewalk outside of the International Space Station on Thursday, Dec. 2, 2021. Barron loosened bolts on a battery system to relieve its future replacement and ran two long wire ties to secure a solar selection bracket box, while Marshburn photographed a pip pin set up on a previous spacewalk.The astronauts then returned to the space station.