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Station Crew Looking Ahead to Friday Russian Spacewalk

Published by Klaus Schmidt on Mon Jan 29, 2018 10:11 pm via: NASA
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Expedition 54 is now focusing on Friday’s spacewalk to install and remove gear on the Russian side of the International Space Station. This comes after today’s spacewalk to work on the Canadarm2 robotic arm was postponed to mid-February.

Cosmonauts Alexander Misurkin and Anton Shkaplerov will put on their Orlan spacesuits Friday and exit the Pirs airlock around 10:30 a.m. EST. The duo will be spacewalking for about six and a half hours to replace an electronics box for a communications antenna on the aft end of the Zvezda service module. The old box will be jettisoned into space to eventually burn up in the Earth’s atmosphere.

If time allows, the Russian spacewalkers may be able work a few more tasks. A pair of exposed experiments, Test and Biorisk, are due to be retrieved and brought back inside the station. The cosmonauts may also photograph the back of Zvezda, reposition a foot restraint and jettison old experiment gear.

Over the weekend space station managers postponed today’s spacewalk for robotics maintenance. Astronauts Mark Vande Hei and Norishige Kanai were expected to swap a Latching End Effector (LEE) on the tip of the Canadarm2 today installed last week on a spacewalk; however, Canadian Space Agency engineers uploaded a diagnostics software to identify the primary communications string anomaly and test the software upgrade on the spare LEE, eliminating today’s swap work. The final software patch will be uploaded in early February.

The duo is now planning for a mid-February spacewalk to bring an end effector inside the station removed from the arm during a spacewalk last October, and install the end effector removed last Tuesday on the mobile base system rail car on the station’s truss.

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