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Spacewalking NASA astronauts erect assist body for brand new photo voltaic array

by linksgi
November 16, 2022
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Two NASA astronauts accomplished the primary in a collection of three spacewalks to proceed upgrading the ability provide for the Worldwide Area Station (ISS). 

Expedition 68 crewmates Josh Cassada and Frank Rubio labored collectively on Tuesday (Nov. 15) to arrange the outside of the area station for the addition of two extra upgraded photo voltaic arrays. Their extravehicular exercise (EVA) was the sixth spacewalk since June 2021 to be devoted to the brand new ISS Roll Out Photo voltaic Arrays, or iROSAs, that are augmenting the station’s current photo voltaic panel wings.

Cassada and Rubio started their EVA at 9:14 a.m. EST (1414 GMT), about an hour and quarter-hour later than initially deliberate. Whereas on the point of exit the station’s Quest airlock, Cassada found an issue with the show on his spacesuit’s management unit, which required the additional time to troubleshoot and proper. 

Spacewalks: How they work and main milestones

As soon as exterior, the 2 spacewalkers cut up methods to sort out separate duties. Rubio went to work routing cables for the subsequent iROSA to be put in on an EVA later this month, whereas Cassada acquired began on organising for the set up of a modification equipment to assist one other of the arrays.

“I used to be instructed I acquired to do a spacewalk with Frank, however I haven’t seen him as we speak,” joked Cassada. “Each time we run into one another, it is nighttime.”

As soon as Rubio was carried out, he joined Cassada on the finish of the station’s starboard truss to help within the main process of their spacewalk, the addition of iROSA mounting bracket for the 1A energy channel. The {hardware} the 2 had been putting in arrived on the area station on Nov. 9 aboard the Northrop Grumman NG-18 Cygnus spacecraft, the S.S. Sally Experience.

“The TBA bag is actual onerous to maintain out of your face, I am going to let you know that,” radioed Cassada to Mission Management in Houston, describing a instrument bag meeting that despite the fact that tethered appeared to need to obscure his view.

“Yeah, I see it. It’s got a little bit thoughts of its personal,” replied astronaut Zena Cardman, who served because the CapCom (capsule communicator) supporting Tuesday’s spacewalk.

“I maintain making an attempt to tuck it below my chin. It isn’t working,” Cassada replied.

Along with the bracket itself, the modification (or mod) equipment included the struts Cassada and Rubio assembled to kind a assist body for the brand new photo voltaic array. The spacewalkers had been capable of erect the body, however as a result of delay getting began with the spacewalk, needed to forgo including the collar bolts that safe the struts in place, in addition to working cables to the meeting. These duties shall be deferred to a future spacewalk.

NASA graphic exhibiting the standing of the Worldwide Area Station (ISS) Roll Out Photo voltaic Arrays (iROSAs). With Tuesday’s (Nov. 15, 2022) spacewalk, two of the iROSAs have been put in, three have their mounting {hardware} in place and one location stills must be began. (Picture credit score: NASA)

So far, two of the six deliberate iROSA installations have been full. After Tuesday’s EVA, three extra had their mounting {hardware} in place, leaving only one extra to be carried out. Every of the brand new arrays is able to producing 20 kilowatts of energy. When utilized in tandem with the still-exposed areas on the older bigger wings, the upgraded system shall be able to rising the area station’s electrical energy provide by 20 to 30%.

The iROSAs had been developed and constructed by Deployable Area Programs, now a part of the area infrastructure know-how firm Redwire, and had been ready for launch by Boeing. Along with assuring the area station has sufficient energy to assist its future wants, together with expanded industrial actions, the iROSAs additionally function a take a look at for the same set of roll-out photo voltaic arrays for use at NASA’s Artemis Gateway area station to be deployed in orbit across the moon. 

The Gateway’s ROSAs shall be longer and deployed remotely, with out astronauts current, however in any other case will use the identical know-how because the station’s iROSAs.

NASA astronaut Frank Rubio hangs off the far left end of the International Space Station (ISS) as seen from fellow spacewalker Josh Cassada's helmet camera (Cassada's hand is visible) while working to install a mounting frame for a new ISS Roll Out Solar Array (iROSA) during a spacewalk on Tuesday, Nov. 15, 2022.

NASA astronaut Frank Rubio hangs off the far left finish of the Worldwide Area Station (ISS) as seen from fellow spacewalker Josh Cassada’s helmet digicam (Cassada’s hand is seen) whereas working to put in a mounting body for a brand new ISS Roll Out Photo voltaic Array (iROSA) throughout a spacewalk on Tuesday, Nov. 15, 2022. (Picture credit score: NASA TV)

Cassada and Rubio accomplished Tuesday’s spacewalk at 3:25 p.m. EST (2025 GMT), after spending 7 hours and 11 minutes exterior the Worldwide Area Station. The EVA was the primary for each crewmates.

The spacewalk was the ninth for the 12 months, the primary of at the very least seven deliberate for Expedition 68 and the 254th since 1998 in assist of meeting and upkeep of the ISS. 

Observe us on Twitter @Spacedotcom (opens in new tab) or on Fb (opens in new tab).  





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