Author Topic: ISS US EVA-75  (Read 28407 times)

Offline Targeteer

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ISS US EVA-75
« on: 06/07/2021 06:42 pm »
June 07, 2021
MEDIA ADVISORY M21-070
NASA to Air Briefing, Spacewalks to Install New Station Solar Arrays
Russian cosmonaut Oleg Novitskiy (middle) poses with Expedition 50 Commander Shane Kimbrough of NASA (left) and Flight Engineer Thomas Pesquet of ESA (European Space Agency) (right) prior to their spacewalk March 24, 2017.


Expedition 65 astronauts will conduct two spacewalks – one Wednesday, June 16, and the other Sunday, June 20 – to install new solar arrays to help power the International Space Station. NASA will discuss the upcoming spacewalks during a news conference at 2 p.m. EDT Monday, June 14. Live coverage of the news conference and spacewalks will air on NASA Television, the agency’s website, and the NASA app.

NASA flight engineer Shane Kimbrough and ESA (European Space Agency) astronaut Thomas Pesquet will conduct both spacewalks, which will be the 239th and 240th in support of station assembly, maintenance, and upgrades.

Reporters who wish to participate in the news conference at NASA’s Johnson Space Center in Houston by telephone must call the Johnson newsroom at: 281-483-5111 no later than 4 p.m. Friday, June 11. Due to safety restrictions related to the ongoing coronavirus (COVID-19) pandemic, reporters will not be invited to attend briefings on-site at NASA centers. Those following the briefing on social media may ask questions using #AskNASA.

News conference participants are:

    Dana Weigel, deputy manager, International Space Station Program
    Pooja Jesrani, spacewalk flight director
    Kieth Johnson, spacewalk officer
    Dan Hartman, manager, Gateway Program

Live coverage of the spacewalks will begin at 6:30 a.m. EDT on the day of each spacewalk, with the crew members scheduled to exit the station’s Quest airlock around 8 a.m. Each spacewalk will last approximately 6 hours, 30 minutes.

On Wednesday, June 16, Kimbrough and Pesquet will exit the space station to install the first two of six ISS Roll-Out Solar Arrays (iROSAs) to ultimately upgrade six of the station’s eight power channels. They will install the first array on the far end of the left (port) side of the station’s backbone truss structure (P6) to upgrade the 2B power channel. On Sunday, June 20, the duo will install the second solar array to upgrade the 4B power channel on the P6 truss.

The solar arrays arrived at the station in the SpaceX Dragon cargo spacecraft as part of the company’s 22nd commercial resupply services mission to the station. Operators in the Mission Control Center at Johnson are scheduled to use the station's robotic Canadarm2 to extract the solar arrays from Dragon's trunk Thursday, June 10, in advance of installation during the spacewalks.

For both spacewalks, Pesquet will be extravehicular crew member 1 (EV 1), with red stripes on his spacesuit, while Kimbrough will be extravehicular crew member 2 (EV 2), with an unmarked suit. Canadarm2 will be used to maneuver the arrays into place, commanded from inside the station by NASA astronaut Megan McArthur with NASA astronaut Mark Vande Hei serving as backup.

The spacewalks will be the seventh and eighth for Kimbrough, and the third and fourth for Pesquet. These will also be the third and fourth spacewalks Kimbrough and Pesquet will conduct together, following two Expedition 50 spacewalks in January and March 2017. During the 2017 spacewalks, they continued replacing nickel-hydrogen batteries with new lithium-ion batteries on the P4 truss, lubricated the Canadarm2 Latching End Effector, and conducted external work to prepare for installation of International Docking Adapter-3.

The current solar arrays are functioning well but have begun to show signs of degradation, as expected, since they were designed for a 15-year service life. The first pair of the space station’s original solar arrays were deployed in December 2000 and have been powering the station for more than 20 years. The new solar arrays will be positioned in front of six of the current arrays, increasing the station’s total available power from 160 kilowatts to a maximum of 215 kilowatts. The same solar array design will be used to power elements of the agency’s Gateway lunar outpost.

In November 2020, the International Space Station surpassed its 20-year milestone of continuous human presence, providing opportunities for unique research and technological demonstrations that help prepare for long-duration missions to the Moon and Mars and also improve life on Earth. In that time, 244 people from 19 countries have visited the orbiting laboratory that has hosted nearly 3,000 research investigations from researchers in 108 countries and areas.

Learn more about the International Space Station, its research, and its crew, at:

http://www.nasa.gov/station
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline cohberg

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Re: ISS US EVA-75
« Reply #1 on: 06/11/2021 01:10 am »
Steps from DOUG US_EVA_P6_IROSA_INSTALL_v22 release




2.3 EGRESS
2.4 ---->EV1 Egress Airlock with CL Bag 1 and Retrieve PGT 3 from EV2
2.5 ---->EV2 On EV1 GO Egress Airlock with CL Bag 2
2.6 WORK SITE PREP
2.7 ---->EV1 Translate to P1 Bay 12 and Anchor EV1/EV2 on HR 365213651
2.8 ---->EV1 Translate to Port CETA Cart then Nadir Outboard IROSA F SE Stanchion D
2.9 ---->EV1 Stow Spare PGT and CL Bag 1 on F SE HR 0008 at Base of Tower
2.10 ---->EV2 Stow CL Bag 2 on Stanchion C HR0007 then Translate to Stanchion A
2.11 ->Release Upper IROSA Support Beams
2.12 ---->EV1 Attach MWS RET to Lower Stanchion of Grapple Tower HR and Beam HR Stanchion
2.13 ---->EV1 Release Bolt C10 then C9 with PGT B7, CCW2 then Stow PGT
2.14 ---->EV2 Release Bolt C7 then C8 with PGT B7, CCW2 then Stow PGT
2.15 ---->EV1 Maintain Control of Beam and Stow on Grapple Tower HR
2.16 ---->EV1 Attach EV2 RET to Upper HR Stanchion, Translate to FSE Stanchion C (Zenith Outboard)
2.17 ---->EV2 Translate to Stanchion B (Zenith Inboard) Attach RET to Closest HR Stanchion
2.18 ---->EV2 Release Bolts C5 and C6 with PGT then Stow PGT
2.19 ---->EV1 Release Bolts C4 and C3 with PGT then Stow PGT
2.20 -> Stow Upper IROSA Support Beams
2.21 ---->EV1 Translate to Stanchion A (Nadir Inboard)
2.22 ---->EV2 Release Beam and Rotate Toward Stanchion A, Install in Inboard Stowage Location, HR Inboard
2.23 ---->EV2 Drive bolt C5 with PGT A4, CW2 then Stow PGT
2.24 ---->EV1 Drive Bolt C3 with PGT A4, CW2 then Stow PGT
2.25 ---->EV1 Push C1 Bolt into Can and Install PIP Pin
2.26 ---->EV2 Push C2 Bolt into Can and Install PIP Pin
2.27 ---->EV2 Translate to Stanchion C (Zenith Outboard)
2.28 ---->EV1 Translate to Stanchion D (Nadir Outboard)
2.29 ---->EV1/EV2 Install Nadir Beam, HRs Outboard (C7 Towards EV2)
2.30 ---->EV1 Drive Bolt C9 with PGT
2.31 ---->EV2 Drive Bolt C7 with PGT, Perform Socket Swap from CL Bag 1 then Stow PGT on HR13
2.32 ---->EV1 Retrieve Wobble socket From CL Bag 1, Install on PGT 1
2.33 ---->EV2 Retrieve CL Bag 2 then Translate and Attach Green Hook to P6 HR 5388
2.34 ->Release Outer Hinge Restraint Bolt R5
2.35 ---->EV1 Translate to Inboard/Zenith IROSA FSE (near stanchion B) Release R5 with PGT A7, CCW2
2.36 ->Release R18R2
2.37 ---->EV1 Translate Zenith to Boom End of IROSA, Release Bolt R18R2 with PGT A7, CCW2
2.38 ---->EV1 Rotate 2 Deployment Rollers slowly until in Deploy Position
2.39 ->Release R38R4
2.40 ---->EV1 Release R3 with PGT A7, CW3 then Release R4 with PGT1 A7, CCW3
2.41 ---->EV1 Stow PGT1 on Tower HR, Retrieve PGT2
2.42 ---->EV2 Stow CL Bag 2 on Left Lower Strut HR Closest to Mounting Bracket
2.43 ---->EV2 Retrieve Square Scoop from CIL, Install on Mounting Bracket (Handle I S S Inboard)
2.44 ---->EV2 Translate to Cable Bag and Secure Lid Open
2.45 ->Release Anti-rotation Devices
2.46 ---->EV1 Translate to C11 (near Stanchion D), Release ARDs with PGT2 B2, CCW2 then Stow PGT
2.47 ---->EV1 Translate to Tower HR and Perform Socket Swap, then Stow Scoop on MWS
2.48 ->Break Torque and Release IROSA FSE Bolts
2.49 ---->EV1 Break Torque on C12 then C11
2.50 ---->EV1 Release Bolt C11 27 Turns Only and then Fully Release C12 with PGT, then stow PGT
2.51 ---->EV1 Install Square Scoop on Root Beam Microsquare near C12 Handle Nadir
2.52 ---->EV1 Stow PGT2 on Tower HR and Retrieve PGT1
2.53 ---->EV1 Translate to Port CETA Cart
2.54 ---->EV1 Reclock to APFR to 12 then Ingress (12,PP,F,6), Give SSRMS GO to Nadir IROSA FSE Worksite
2.55 ->Route Right/Left Wire Cable Harness
2.56 ---->EV2 Retrieve Right/Left Side Harness, Route Cable towards Saw Connector Panel
2.57 ---->EV2 Retrieve Green Hook
2.58 ---->EV2 Translate to FSE Grapple Tower
2.59 ---->EV2 Retrieve Scoop from CL Bag 1 and Stow on MWS, then Stow PGT on Swingarm
2.60 IROSA RELEASE FROM FSE
2.61 ---->EV1 Attach RET to Scoop on IROSA Microsquare near C12
2.62 ---->EV2 On EV1 GO Release C11 with PGT and Install Square Scoop on Root Beam Microsquare
2.63 ---->EV2 Translate Outboard/Zenith of F SE, assist with IROSA Clearance to Tower Grapple Fixture
2.64 ---->EV1 Slide IROSA Zenith to Release from FSE Pin/slot, EV2 Give SSRMS GO to Backoff
2.65 IROSA INSTALL
2.66 ->Pre Install Steps
2.67 ---->EV2 Perform Socket Swap on PGT then Retrieve EV1 Green Hook from Port CETA Cart Nadir HR
2.68 ---->EV2 Translate to P6 and Attach EV1/EV2 Green Hook to HR 531115388
2.69 ---->EV2 EV2 translate to CIL Bag, stow PGT on same HR, retrieve LDTDT
2.70 ---->EV2 Translate to HR 5344, Outboard of APFR in WIF 17, Ingress APFR [12,FF,F,8]
2.71 ---->EV1 Give SSRMS GO to Handoff Pos, Transfer IROSA to EV2
2.72 ---->EV1 Give SSRMS GO to Egress Position, Egress APFR, Tether to P6 HR 5311
2.73 ---->EV1 Stow Ingress Aid then Give SSRMS GO to Maneuver
2.74 ---->EV1 Translate to EV2 APFR, incrementally Yaw Boot Plate to [2]
2.75 ---->EV1 Place Fairlead on HR 5356, then Ingress APFR in WIF 29 Verify[12,I1,F,11]
2.76 ---->EV2 Transfer Control of IROSA to EV1
2.77 ---->EV2 Egress APFR and Translate to Left Side of Mounting Bracket to Position for IROSA Install
2.78 ---->EV1 Using AET Hook, Remove Right Hand Scoop from Root Beam
2.79 ->Install IROSA to Mounting Bracket
2.80 ---->EV1 With EV2 Install IROSA Onto Mounting Bracket Left Side Alignment Tabs
2.81 ---->EV1 Remove Left Scoop from Root Beam to Stow in CL Bag and Release R6 with PGT A7, CCW 2
2.82 ---->EV1 Egress APFR, Reposition to Outboard Side of Mounting Bracket
2.83 ---->EV2 Pivot IROSA to Unfolded Position
2.84 ---->EV2 Stow Scoops in CL Bag 1 then Retrieve AMS Knob tool with 6in Wobble Socket
2.85 ->Drive R7 & R8
2.86 ---->EV1 Drive R7 & R8 with PGT A1,CW2 then Stow PGT and Receive AMS Knob from EV2
2.87 ---->EV1 Turn Bolts until Snug then Transfer AMS Knob to EV2
2.88 ---->EV2 Stow AMS Knob in Crewlock Bag
2.89 ---->EV1 Drive Right Side Bolts M35, M36, M37, M38 with Spare PGT A7, CW2
2.90 ---->EV2 Drive Left Side Bolts M31, M32, M33, M34 with PGT A7, CW2
2.91 ---->EV1 Mate Right Cables
2.92 ---->EV2 Mate Left Cables
2.93 IROSA DEPLOY
2.94 ---->EV2 Position to Observe Tower Magnets Snap Together During Deployment
2.95 ---->EV1 Release Deployment Launch Restraint Bolts R9 & R10 with PGT B7,CCW2
2.96 ---->EV1 Wait For Full Deployment (Approx. 6 Minutes)
2.97 ---->EV1 After Full Deployment Release Blanket Tensioner Bolts R11 & R12 with PGT A7, CCW2
2.98 CLEANUP
2.99 ---->EV2 Retrieve PGT and Stow on Swing Arm
2.100 ---->EV2 Remove Square Scoop From Mounting Bracket And Stow in CL Bag
2.101 ---->EV2 Stow Crewlock Bag inside of Cable Bag
2.102 ---->EV1 Retrieve APFR from WIF 29 and Stow on BRT
2.103 ---->EV1 Retrieve GREEN Hook from HR 5311
2.104 ---->EV2 Bundle Cable Bag to APFR in WIF 17 and Stow on BRT
2.105 ---->EV2 Retrieve GREEN Hook from HR 5388
2.106 ---->EV1 Translate to Port CETA Cart and Stow APFR on WIF 3 4,I1,F,11
2.107 ---->EV2 Translate to A/L and Install APFR onto WIFEX in AL WIF 11, 12,FF,F,2
2.108 ---->EV1 Retrieve APFR from LEE, Stow On Port CETA Cart WIF 2 [9,PP,F,6]
2.109 ---->EV1 Translate to F SE Near Tower to Retrieve PGT and CL Bag 1
2.110 INGRESS
2.111 ---->EV1 Translate to P1 HR 3651, Retrieve Anchor Hook from P1 HR 3652 and Stow on MWS
2.112 ---->EV1 Translate to A/L
2.113 ---->EV2 Stow Cable Bag in Crewlock on Lg-sm RET
2.114 ---->EV2IEV1 Ingress A/L


« Last Edit: 06/11/2021 08:39 pm by cohberg »

Offline cohberg

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Re: ISS US EVA-75
« Reply #2 on: 06/20/2021 03:10 am »
Looks like EVA-75 is currently focusing on the 2B side only. EVA-76 looks like the new slot for 4B work.

Quote from: https://blogs.nasa.gov/spacestation/2021/06/19/nasa-tv-broadcasts-solar-array-spacewalk-on-sunday/
During the planned six-and-a-half hour spacewalk, Kimbrough and Pesquet will work on the far end of the left (port) side of the station’s backbone truss structure (P6) to deploy, or unroll, the first of two ISS Roll Out Solar Arrays (iROSAs) that will augment power capability for the port 6 truss’ 2B power channel.

Quote from: https://blogs.nasa.gov/spacestation/2021/06/19/nasa-tv-broadcasts-solar-array-spacewalk-on-sunday/
Before the new array can be deployed and begin providing power to the orbiting laboratory, the two will need to install the electrical cables and drive the final two bolts to enable the solar array to unroll it into its fully laid-out position. If deployment is completed Sunday, the pair may be scheduled for a third spacewalk to begin work to prepare the second new solar array – this one on P6 truss’ 4B power channel – for installation and deployment.

TDLR: Shane's display / sublimator issues + IROSA / mod kit fitment issues consumed a lot of time during EVA-74. The spacewalkers did not swing open and release / unfurl IROSA as planned. EVA-75 looks like it will focus only on the uncompleted tasks (previously the astronauts were planning to move on with the 2nd array during EVA-75). EVA-76 will likely be the new spacewalk dedicated to the 2nd IROSA array.

Shane will likely make it into the top 10 for cumulative spacewalking time.
« Last Edit: 06/20/2021 03:22 am by cohberg »

Offline gemmy0I

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Re: ISS US EVA-75
« Reply #3 on: 06/20/2021 04:39 am »
TDLR: Shane's display / sublimator issues + IROSA / mod kit fitment issues consumed a lot of time during EVA-74. The spacewalkers did not swing open and release / unfurl IROSA as planned. EVA-75 looks like it will focus only on the uncompleted tasks (previously the astronauts were planning to move on with the 2nd array during EVA-75). EVA-76 will likely be the new spacewalk dedicated to the 2nd IROSA array.

Shane will likely make it into the top 10 for cumulative spacewalking time.
The great thing about being an astronaut is when things "go wrong" (not too badly, anyway), it often just creates more opportunities to do cool stuff! :D

Last year when Bob Behnken and Chris Cassidy were doing the last battery replacement EVAs, I realized that because they completed that EVA series so efficiently (they averaged less than 6 hours per outing across all four EVAs), Behnken ended up in 4th place on the cumulative spacewalking time list, a mere 38 minutes short of Drew Feustel's current 3rd place. They had good reason not to dawdle, because they had a limited window during Demo-2 to finish the battery upgrades (and if things had gone wrong they might've needed that time), but part of me wonders if they wished they'd taken a few more minutes to enjoy the view. ;)

More seriously, though...looking at NSF's ISS schedule thread, I see there are two more U.S. EVAs scheduled for Expedition 65 in July besides the iROSA work in June. Currently they are listed as EVA-76 and EVA-77 (before renumbering due to the presumed additional iROSA EVA), and the tasks are listed as "6R (RS-Node) power inverter" and "Bartolomeo activation". Thomas Pesquet is apparently scheduled to take part in both (he certainly hit the jackpot for this expedition!), but the other spacewalker is still "TBD".

Have there been any hints who will do the two July EVAs with Pesquet? Were any of the other Expedition 65 USOS crew seen training for EVAs prior to flight? If by chance Kimbrough ends up doing those as well, then assuming an average of (low estimate) 6 hours per EVA, he would easily surpass Michael Lopez-Alegria's record as the #1 American spacewalker (#2 globally, behind Anatoly Solovyev) by both time and # of EVAs. Pesquet, for his part, is on track to make it into the top 25 and pass Luca Parmitano to become, by far, the most experienced non-American/Russian spacewalker.

Offline cohberg

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Re: ISS US EVA-75
« Reply #4 on: 06/20/2021 05:11 am »
Likely Aki / Shane

https://mobile.twitter.com/thom_astro/status/1354336449877962752?lang=en

I don't see any NBL publicity for Mark in the past ~4 years or so.

I think that Megan is out (no EVA experience and I couldn't find any evidence of her training in the wet part of the NBL ever)


Offline vp.

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Re: ISS US EVA-75
« Reply #5 on: 06/20/2021 05:35 am »
I've seen several photos with Shane and Aki together in the NBL pool.
I would bet that the 2 EVA's in July were done by Shane and Aki (or maybe Mark and Aki).

Offline Targeteer

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Re: ISS US EVA-75
« Reply #6 on: 06/20/2021 06:42 am »
pre-breathe started 0639Z
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline centaurinasa

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Re: ISS US EVA-75
« Reply #7 on: 06/20/2021 07:28 am »
The team for today's EVA.
« Last Edit: 06/20/2021 11:54 am by centaurinasa »
To boldly go where no human has gone before !

Offline centaurinasa

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Re: ISS US EVA-75
« Reply #8 on: 06/20/2021 08:29 am »
https://blogs.nasa.gov/spacestation/2021/06/19/nasa-tv-broadcasts-solar-array-spacewalk-on-sunday/

"NASA astronaut Shane Kimbrough and ESA (European Space Agency) astronaut Thomas Pesquet are scheduled to exit the International Space Station’s Quest airlock Sunday for a spacewalk to continue installation and deployment of the first of six total new solar arrays to help power the orbiting laboratory. The duo installed the solar array into its mounting bracket during a June 16 spacewalk."

"If deployment is completed Sunday, the pair may be scheduled for a third spacewalk to begin work to prepare the second new solar array – this one on P6 truss’ 4B power channel – for installation and deployment."

"This will be the 240th spacewalk in support of space station assembly. Pesquet will be extravehicular crew member 1 (EV 1), with red stripes on his spacesuit, while Kimbrough will be extravehicular crew member 2 (EV 2) in an unmarked suit.

"This will be the eighth spacewalk for Kimbrough, and the fourth for Pesquet."
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Offline centaurinasa

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Offline SMS

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Re: ISS US EVA-75
« Reply #10 on: 06/20/2021 09:47 am »
I've seen several photos with Shane and Aki together in the NBL pool.
I would bet that the 2 EVA's in July were done by Shane and Aki (or maybe Mark and Aki).

This question should be clear after today's eva @vp !
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Offline centaurinasa

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Re: ISS US EVA-75
« Reply #11 on: 06/20/2021 10:34 am »
NASA TV coverage start.
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Offline centaurinasa

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Re: ISS US EVA-75
« Reply #12 on: 06/20/2021 10:38 am »
EVA-74 & 75 Worksites.
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Offline centaurinasa

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Re: ISS US EVA-75
« Reply #13 on: 06/20/2021 10:40 am »
SAFER
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Offline centaurinasa

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Re: ISS US EVA-75
« Reply #14 on: 06/20/2021 10:55 am »
EV-1 & 2 inside Crew Lock section, 1st EVA-1: face to the airlock and head 1st.
Internal seciion Hatch closed (3 cranks)
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Offline centaurinasa

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Re: ISS US EVA-75
« Reply #15 on: 06/20/2021 10:58 am »
"Go for Step 77" (pre depress procedure)
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Offline centaurinasa

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Re: ISS US EVA-75
« Reply #16 on: 06/20/2021 10:59 am »
GO/NO GO pool for depress at MCC-H
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Offline centaurinasa

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Re: ISS US EVA-75
« Reply #17 on: 06/20/2021 11:00 am »
Orbit 1 team give the GO for depress (14,7 psi)
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Offline centaurinasa

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Offline centaurinasa

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Re: ISS US EVA-75
« Reply #19 on: 06/20/2021 11:08 am »
Steps 78 & 79 complete, GO for step 80
To boldly go where no human has gone before !

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