EVA-3, the final EVA for STS-132 and what is planned to be the last ever EVA for Shuttle Atlantis, is now underway.
Spacewalkers Garrett Reisman & Mike Good have already completed the first minor task of connecting the back-up ammonia jumper between the P4 & P5 Truss, and are now working on the major task or R&Ring the remaining batteries on the P6 Truss.
Spaceflight Now: "Atlantis crew taking final spacewalk outside station".
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FD-7 HD Crew Choice Downlink Video, which includes a conversation with Mike Good about the differences between spacewalking on Hubble & ISS, and some HD shots of MRM-1 filmed from the Cupola:
[nomedia="http://www.youtube.com/watch?v=vnN4sjhdjhQ"]YouTube- Shuttle Astronauts Produce Highlight Video[/nomedia]
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All new batteries have been installed on the P6 Truss, and all old batteries have been installed on the ICC-VLD for return to Earth! :speakcool:
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The spacewalkers have just re-secured the MLI (Multi-Layer Insulation) cavity flap on the EOTP (Enhanced ORU Temporary Platform) Input Drive at the SPDM (Special Purpose Dexterous Manipulator) “Dextre”.
The spacewalkers are currently in the process of retrieving the PDGF (Power & Data Grapple Fixture) from the sidewall carrier in Atlantis’s Payload Bay. The PDGF will then be transferred to the airlock to be brought inside the ISS. This PDGF will be installed on the exterior of the FGB during ISS US EVA-15, which will be performed by Doug Wheelock & Tracy Caldwell-Dyson on 8th July. This spacewalk will be based from the Quest Airlock, which is a rarity for ISS (or “stage”) EVAs. The purpose of installing the PDGF on the FGB is to allow the SSRMS to be based from the FGB, which will be needed for transferring the STS-132-delivered MLM airlock from MRM-1 to the MLM when the MLM arrives in mid-2012.
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As the Shuttle/ISS complex was flying directly over KSC, spacewalkers reported they could see the SLF. PLT Tony Antonelli then called "Houston, runway in sight"! :rofl:
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And the PDGF has now been removed from Atlantis's sidewall carrier.
Spacewalkers have now left Atlantis's Payload Bay for the final time.

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The PDGF is now inside the airlock.
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EVA-3 is now complete! The total time was 6 hours 46 minutes. Atlantis’s final spacewalk is now over.

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Some awesome images of Atlantis taken from the Cupola:
Hi-res version.
Hi-res version.
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EVA-3 time-lapse:
[nomedia="http://www.youtube.com/watch?v=iNWdk9MeZIo"]YouTube- STS-132 EVA-3 Timelapse Final EVA Space Shuttle Atlantis[/nomedia]
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The ICC-VLD is now back on the POA on the MBS, and the MT with the MBS attached is now translating back toward the S0 Truss.
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From ISS Daily Report for 21/05/2010:
STS-132/ULF-4's EVA-3 was completed successfully by EV-1 Mike Good & EV-2 Garrett Reisman today in 6 hours 46 minutes, accomplishing all objectives plus one get-ahead.
During EVA-3, Good & Reisman:
. Installed a NH3 (ammonia) jumper between the P4 & P5 Trusses.
. Installed the two remaining batteries (E, F) at the P6 Truss, storing the old units (#5, #6) on the ICC-VLD.
. Cleaned up the P6 Truss.
. Retrieved a PDGF (Power & Data Grapple Fixture) from the Atlantis’s Payload Bay and took it inside the Quest Airlock (to be installed on the FGB during the Stage EVA-15 by Tracy Caldwell-Dyson & Doug Wheelock on 08/07, thus creating a new base point for the SSRMS).
. Removed & re-installed P1 Truss RGFSB (Radiator Grapple Fixture Stowage Beam)
– deferred from STS-131/19A EVA-2 in April.
. Re-secured a MLI (Multi-Layer Insulation) cavity flap on the EOTP (Enhanced ORU Temporary Platform) Input Drive at the SPDM (Special Purpose Dextrous Manipulator) “Dextre”
- a get-ahead.
. Stowed & organized EVA tools in the Z1 Truss ETSD (External Tool Stowage Device)
- a get-ahead.
While Steve Bowen & Ken Ham provided campout & prebreathe support, Tracy Caldwell-Dyson & Piers Sellers supported the spacewalkers by operating the SSRMS from the Cupola. [The SSRMS first assisted at the P6 Truss worksite for the battery R&R, then moved the ICC-VLD with the old batteries to the POA (Payload ORU Accommodation) on the MT (Mobile Transporter) MBS (Mobile Base System) and released it in that translate/stow location. Final ICC-VLD berthing in the Atlantis’s Payload Bay is scheduled for tomorrow.]
Skvortsov & Kornienko continued preparing the new MRM-1 for unloading. [Yesterday, upon ingress in MRM-1, the crew reported floating metal shavings. They closed the hatch and ran the circulation fans overnight in order for the filters to capture the shavings. Upon ingress today, wearing PPE (Personal Protection Equipment), Misha & Sasha reported that the amount of metal shavings had significantly decreased. Tonight, the crew will remove MRM-1 panels 201 & 202, close the hatch and activate the dust fans again to help capture the remaining shavings. This is not an uncommon experience with new modules, exposed to zero-G for the first time.]
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NASA's Twitter page said:
The International Space Station is now 98% complete by habitable volume, 94% complete by pressurized volume & 93% complete by mass.
Awesome! :speakcool:
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Okay, here we go – some REAL nice on-orbit images have just been released! :speakcool:
MRM-1 & the ICC-VLD are seen in Atlantis’s Payload Bay.
Hi-res version.
MRM-1 & the ICC-VLD are seen in Atlantis’s Payload Bay, photographed from DC-1 “Pirs”.
Hi-res version.
The Moon is seen next to Atlantis’s Payload Bay & MRM-1.
Hi-res version.
Garrett Reisman holds the new SGANT while anchored to an APFR (Articulating Portable Foot Restraint) on the end of the SSRMS during EVA-1.
Hi-res version.
Great view of Garrett Reisman on the end of the SSRMS during EVA-1.
Hi-res version.