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    Home»Solar Energy»NASA astronauts unfurl 4th solar array outside space station
    Solar Energy

    NASA astronauts unfurl 4th solar array outside space station

    By December 22, 2022No Comments5 Mins Read
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    The Worldwide Area Station (ISS) has a fourth new photo voltaic array due to the work of two NASA astronauts throughout a seven-hour spacewalk.

    Frank Rubio and Josh Cassada, each flight engineers on the house station’s Expedition 68 crew, ventured outdoors the orbiting complicated once more on Thursday (Dec. 22) to put in a brand new ISS Roll- Out Photo voltaic Array (iROSA) to complement the station’s energy provide. . The spacewalk was a detailed repeat of the extravehicular exercise (EVA) that Rubio and Cassada carried out virtually three weeks in the past, however this time targeted solely on an influence channel positioned on the port-side truss of the station.

    The 2 astronauts additionally switched roles, with Rubio serving because the lead spacewalker (EV-1) for Thursday’s outing. Rubio and Cassada started the spacewalk at 8:19 am EST (1319 GMT), exiting the US Quest’s airlock and rapidly set to work on their first assigned duties. As Cassada connected a foot restraint to the top of the station’s Canadarm2 robotic arm, Rubio configured the cables they’d later connect with tie the brand new array to the station’s 4A energy channel.

    Associated: NASA astronauts deploy the roll-out photo voltaic array throughout a spacewalk outdoors the house station

    NASA astronaut Frank Rubio (in foreground) transitions to the space station while fellow NASA astronaut and Expedition 68 companion Josh Cassada activates an International Space Station (ISS) Roll-Out Solar Array ( iROSA) at the end of the Canadarm2 robotic arm during a spacewalk on Thursday, December 22, 2022.

    NASA astronaut Frank Rubio (in foreground) transitions alongside the house station as fellow NASA astronaut and Expedition 68 teammate Josh Cassada prompts an Worldwide Area Station (ISS) Roll-Out Photo voltaic Array (iROSA) on the finish of the Canadarm2 robotic arm throughout a spacewalk on Thursday, December 22, 2022. (Picture credit score: NASA TV)

    The 2 astronauts then labored collectively to free iROSA from the platform the place it was launched and quickly stowed within the station. Just like the array put in on December 3, the 4A iROSA was despatched into orbit on a SpaceX CRS-26 Dragon cargo spacecraft, which arrived on the ISS on Nov. 27.

    After Rubio launched the final bolt holding the array collectively, Cassada, now on the finish of the robotic arm, grabbed the meeting to hold it to its set up website. On the controls of Canadarm2 is NASA astronaut Nicole Mann, with Koichi Wakata of the Japan Aerospace Exploration Company (JAXA) coordinating her actions with Cassada on the surface.

    “Only a heads up, Koichi,” Cassada radioed throughout a break between acts, “that final one stopped me a bit. Superb.” Though weightless within the microgravity surroundings of house, the 750-pound (340-kg) weight nonetheless has vital inertia when moved.

    Rubio moved alongside the truss to fulfill Cassada the P4 website. The 2 spacewalkers then unfolded the iROSA from its launch configuration after which secured the array on prime of a mounting bracket positioned on an earlier EVA. Utilizing an influence software particularly designed for astronauts to make use of on spacewalks, Rubio tightened 4 bolts on the precise and left sides of the iROSA to open the meeting.

    After ready for the house station to be in “eclipse,” or when it’s within the Earth’s shadow, such that the present photo voltaic array wings will not be producing electrical energy, Rubio and Cassada then built-in the iROSA to 4A energy channel by attaching cables. connect with the brand new station array.

    At that time, all that is left to do is let iROSA unfold. With the discharge of the 2 bolts, the potential power saved within the rolled-up carbon composite booms causes the array to unfold itself to its full 63-foot (19 meter) size with out a motor. required.

    A new International Space Station (ISS) Roll-Out Solar Array (iROSA) unfolded in front of the legacy 4A solar array wing, boosting power for the orbiting complex.

    A brand new Worldwide Area Station (ISS) Roll-Out Photo voltaic Array (iROSA) unfolded in entrance of the legacy 4A photo voltaic array wing, boosting energy for the orbiting complicated. (Picture credit score: NASA TV)

    “We will lastly run that microwave we have needed to run,” Cassada stated, joking concerning the additional energy from the brand new array.

    The entire course of took about 10 minutes. Cassada tightened the 2 bolts to stiffen the array and its set up was full.

    The ISS Roll-Out Photo voltaic Arrays are positioned in entrance of, and partially overlaying, slightly-degraded, current photo voltaic panel wings. When utilized in tandem and as soon as all six iROSAs are in place, the upgraded energy system will improve the house station’s energy provide by 20 to 30 p.c.

    Cassada and Rubio accomplished the spacewalk by cleansing and inventorying their gear earlier than re-entering the airlock at 3:27 pm EST (2027 GMT), seven hours and eight minutes after they started the EVA .

    Thursday’s tour was initially scheduled for Wednesday, however was delayed a day as a result of the house station needed to be maneuvered away from an approaching piece of Russian rocket particles. That is the third spacewalk for Rubio and Cassada. They’ve now logged 21 hours and 24 minutes working within the vacuum of house.

    The EVA was the twelfth for the 12 months, the fourth for Expedition 68 and the 257th since 1998 in help of ISS meeting and upkeep.

    Observe us on Twitter @Spacedotcom (Opens in a brand new tab) or to Fb (Opens in a brand new tab).



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