Only two more new solar arrays to be installed after successful spacewalk.
The International Space Station has a fourth new solar array thanks to the work of two NASA astronauts on a seven-hour spacewalk. 's Expedition 68 crew, again ventured outside of the orbiting complex on Thursday to install a new ISS Roll-Out Solar Array to augment the station's power supply. The spacewalk was a near repeat of the extravehicular activity that Rubio and Cassada, but this time focused solely on a power channel located on the station's port-side truss.
The two astronauts also reversed roles, with Rubio serving as the lead spacewalker for Thursday's outing. Rubio and Cassada began the spacewalk at 8:19 a.m. EST , exiting the U.S. Quest airlock and quickly getting to work on their first assigned tasks. As Cassada set up a foot restraint at the end of the station's Canadarm2 robotic arm, Rubio configured the cables that they would later connect to tie the new array into the station's 4A power channel.
The two astronauts then worked together to free the iROSA from the platform on which it was launched and temporarily stowed on the station. Like the array that was installed on Dec. 3, the 4A iROSA was delivered to orbit by aAfter Rubio freed the last bolt holding the array in place, Cassada, now positioned at the end of the robotic arm, took hold of the assembly to carry it to its installation site.
"Just a head's up, Koichi," radioed Cassada during a break between moves,"that last one stopped a little quickly on me. If you see it ramping up on the next one, can you give me a heads up? That would be awesome." Although weightless in the microgravity environment of space, the mass of the 750-pound still had significant inertia when being moved.
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