Новости МКС

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ISS Updates‏ @ISS101 47 мин. назад

.@AstroPeggy & @Astro2fish completed two hours of suit-up and EMU checks, now heading into pre-breathe procedures.

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William Harwood‏ @cbs_spacenews 4 мин. назад

EVA43: The spacewalk is officially scheduled to begin around 8am EDT, but the crew is running about a half-hour ahead

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William Harwood‏ @cbs_spacenews 11 мин. назад

EVA43: Unlike the most recent EVA on 5/12, no problems with the airlock service and cooling umbilicals (SCUs) today

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EV2

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ISS Updates‏ @ISS101 51 сек назад

Both crew members now in the crew lock section of Quest. Internal hatch closure is next ahead of airlock depressurization.

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Reid Wiseman‏Подлинная учетная запись @astro_reid 5 мин назад

The Flight Control Room is bustling as @Astro2fish and @AstroPeggy prepare to head outside for a quick repair mission.

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ISS Updates‏ @ISS101 16 сек назад

Airlock depressurization has begun. A built-in pause will be used for leak checks on the suits. Well ahead of the day's timeline.

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William Harwood‏ @cbs_spacenews 2 мин. назад

EVA43: Airlock depressurization underway; crew is running more than a half hour ahead of schedule

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ISS Updates‏ @ISS101 35 сек назад

EXT-1 is a Local MDM (Tier 2) in charge of command&control of 8 Tier 3 MDMs that operate various external systems (power, thermal, robotics)

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ISS Updates‏ @ISS101 1 мин назад

EXT-2 is currently handling all external control zone tasks, though the EXT-1 failure left ISS in a non-fault tolerant situation.

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ISS Updates‏ @ISS101 сейчас

Whatever the cause, EXT-1 has to be replaced to get back into a fully redundant configuration. The new unit was assembled & tested on Sunday

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ISS Updates‏ @ISS101 1 мин назад

EXT-1 is one of four MDMs on the S0 truss segment - two are External Control Zone MDMs, the other two are User-Level MDMs for S0 systems.

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ISS Updates‏ @ISS101 1 мин назад

Quest hatch is open, the spacewalkers are now working to transition their suits to battery power which signals the official start of the EVA

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William Harwood‏ @cbs_spacenews 2 мин. назад

EVA43: Whitson/Fischer switched their suits to battery power at 7:20am, officially kicking off US EVA-43

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https://blogs.nasa.gov/spacestation/2017/05/23/two-nasa-astronauts-begin-station-spacewalk/

Two NASA Astronauts Begin Station Spacewalk
Posted on May 23, 2017 at 7:22 am by Mark Garcia.

Two NASA astronauts switched their spacesuits to battery power this morning at 7:20 a.m., EDT aboard the International Space Station to begin a spacewalk planned to last about 2.5 hours. Expedition 51 Commander Peggy Whitson and Flight Engineer Jack Fischer will replace a critical computer relay box.

The relay box, known as a multiplexer-demultiplexer (MDM), is equipped with upgraded software installed in the truss March 30 during a spacewalk by Whitson and Expedition 50 commander Shane Kimbrough. Whitson prepared a spare data relay box on Sunday and tested components installed in the replacement. She reported the spare MDM was ready to be brought outside to replace the failed unit.

While Whitson is replacing the MDM, Fischer will install a pair of antennas on the U.S. Destiny Laboratory module to enhance wireless communication capability for future spacewalks. That task was deferred from Whitson and Fischer's May 12 spacewalk.

Whitson is wearing the suit with red stripes as extravehicular crew member 1 (EV 1). Fischer, extravehicular crew member 2 (EV 2), is wearing the suit with no stripes.

Watch the spacewalk on NASA TV and on the agency's website.

Follow @space_station on Twitter for updates. Learn more about the International Space Station online, including additional information about the current crew members.

This entry was posted in Expedition 51 and tagged European Space Agency, International Space Station, NASA, Roscosmos, spacewalk on May 23, 2017 by Mark Garcia.

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ISS Updates‏ @ISS101 2 мин назад

.@AstroPeggy now outside the airlock. First steps of every EVA are tether configuration and suit checks before work can begin in earnest.