September 24, 2021

Astronauts on spacewalk deploy a second new solar panel for space station

In less than two weeks, two astronauts ventured out of the International Space Station for the third time, using new solar panels to enhance the orbital outpost’s electrical system.
NASA astronaut Shane Kimbrough and French astronaut Thomas Pesquet of the European Space Agency (ESA) completed a 6-hour 45-minute spacewalk on Friday (June 25). During this period, they installed six international The second in the new RollOut solar array. Space Station (ISS) (iROSA). Previously, the two worked together to implement the first new array during the spacewalk on June 16 and June 20.
Friday’s Extravehicular Activity (EVA) placed the second iROSA in front of the first one on the leftmost side (port side) of the space station’s spine structure. The feed channels 2B and 4B on the port 6 (P6) truss now have a new layout.
Video: Newly launched solar panel
deployed on the space station Related: International Space Station – Inside and out (infographic)
The second of the six solar panels on the International Space Station (ISS) (iROSA) is fully deployed during A spacewalk by NASA astronaut Shane Kimbrough and European Space Agency astronaut Thomas Pesquet on Friday June 25, 2021, the orbital outpost’s port 6 (P6) armor upgraded its 4B energy channel. The second of
solar panels launched by the six International Space Stations. On Friday June 25, during the spacewalk conducted by NASA astronaut Shane Kimbrough and European Space Agency astronaut Thomas Pesquet, iROSA was fully deployed to Orbital Outpost 6 Port (P6) on the truss has improved its feeding channel 4B. 2021. (Image source: NASA TV)
New, more powerful but smaller arrays are installed versus existing space station arrays to partially cover older and larger devices. Traditional arrays are beginning to show signs of declining power generation because they have exceeded their 15-year design life. The P6 array, the first pair deployed in December 2000, has been generating power for the station for more than 20 years.
When used in series, the old array and the new array will be able to increase the station’s power supply by 20-30%.
Kimbrough and Pesquet began their spacewalk on Friday at 7:52 am EST (1152 GMT). After setting up their workplace, they began to repeat what they had done on the first two spacewalks. Follow some of the same steps. Pesquet once again positioned himself at the end of the Canadaarm2 robotic arm at the workstation to transfer the 750 pounds that were still bent. (340 kg) iROSA temporarily loaded the pallet onto the P6 truss, where Kimbrough waited to receive it. On June 25, 2021, NASA astronaut Shane Kimbrough and European Space Agency astronaut Thomas Pesquet spotted 4,444 on a spacewalk after launching the second International Space Station (ISS) launch configuration for the solar array. (iROSA).
NASA astronaut Shane Kimbrough and European Space Agency astronaut Thomas Pesquet deployed the second ISS Rollout Solar Array (iROSA) from launch configuration on June 25, 2021 and were seen during a spacewalk.
(Image source: NASA TV)
NASA astronauts Megan McArthur and Mark Vande Hei control the robotic arm from inside the space station. After
was in place, Kimbrough and Pesquet worked hard to fix iROSA into the container at the bottom of the P6/4B matrix. The rod is designed to tilt the iROSA forward by 10 degrees from the traditional matrix.
Spacewalkers deployed iROSA from its launch configuration to a total length of 20 feet (6 meters). Then they bolted the array to fix it in place, and after waiting for the station to enter the night passage, they used cables to connect the array to the feeder passage 4B.
Then, as the two screws were loosened, Pesquet loosened iROSA for deployment. The array’s coiled carbon composite arms store enough potential energy to expand the iROSA to a full length of 63 feet (19 m). The whole process takes about 10 minutes.
“From our perspective, the deployment looks great,” Canadian Space Agency astronaut Jenni Sidey (Jenni Sidey), a ground vehicle officer at the Houston Mission Control Center, told Pesquet and Kimbru. “We get good energy from solar panels, so we have a lot of happy faces here. You both did a good job.” On Friday,
, at NASA astronaut Shane Kimbrough and European Space Agency astronaut Thomas Pesquet During the spacewalk, the second deployment of the International Space Station (ISS) (iROSA) RolloutOut solar array was seen on the armor of port 6 (port 6) of the orbital outpost. June 25, 2021.
During the spacewalk of NASA astronaut Shane Kimbrough and European Space Agency astronaut Thomas Pesquet, the second deployment of the ISS Rollout Solar Array (iROSA) can be seen deployed in the Port 6 armor of the orbital outpost in the week. Fives. June 25, 2021.
(Image source: NASA TV) The two new arrays
currently deployed were launched into the stress-free “trunk” of the SpaceX Dragon cargo spacecraft that arrived at the space station on June 5. Later this year, two additional pairs of arrays will also be delivered in the resupply mission.
In addition to increasing the power supply of the space station, iROSA is also used as a test of NASA’s Artemis Gateway deployed in orbit around the moon. The range of gateways will be broader and remotely deployed, but in other respects it will use the same technology developed by Deployable Space System (DSS) and Boeing.
This is the 241st spacewalk to support the assembly of the space station. EVA ended at 3:37 pm. EDT (1937 GMT), Kimbrough ranked ninth and Pesquet ranked fifth. Kimbrough has now spent 59 hours and 28 minutes on the spacewalk, tied for sixth in the world for the time he spent in EVA with Russian astronaut Fyodor Yurchikhin. Pesquet even recorded 33 hours.

 

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