Space News
space history and artifacts articles

Messages
space history discussion forums

Sightings
worldwide astronaut appearances

Resources
selected space history documents

Forum:Space Shuttles - Space Station
Topic:ISS Expedition 54: Russian spacewalk (2/2/18)
Want to register?
Who Can Post? Any registered users may post a reply.
About Registration You must be registered in order to post a topic or reply in this forum.
Your UserName:
Your Password:   Forget your password?
Your Reply:


*HTML is ON
*UBB Code is ON

Smilies Legend

Options Disable Smilies in This Post.
Show Signature: include your profile signature. Only registered users may have signatures.
*If HTML and/or UBB Code are enabled, this means you can use HTML and/or UBB Code in your message.

If you have previously registered, but forgotten your password, click here.

The two cosmonauts opened the hatch to the station's Pirs docking compartment to begin the spacewalk at 10:34 a.m. EST (1534 GMT). They re-entered the airlock and closed the hatch at 6:47 p.m. EST (2347 GMT).

During the record-breaking spacewalk, Misurkin and Shkaplerov installed an electronics and telemetry box for the high gain antenna on the Zvezda service module to enhance communications between Russian flight controllers on the ground and the Russian segment on the station. The antenna system appears to be working normally.

It was the 207th spacewalk in support of International Space Station assembly and maintenance, the fourth in Misurkin’s career, and the second for Shkaplerov. It is the fifth-longest spacewalk in spaceflight history.

Robert PearlmanFrom Jonathan McDowell on Twitter:
The NASA PAO today ranked EVAs using mixed definitions — NASA rules for NASA EVAs (battery power to repress) and Russian rules for Russian EVAS (hatch open to close), not a fair comparison.

My estimate using NASA rules for all, guessed values, makes today's EVA the second longest ever.

Using Russian rules (hatch open to close), however, the longest EVAs were STS-102 EVA-1 (Helms/Voss), 534 minutes; STS-49 EVA-3, 508 minutes; ISS US EVA 18 (494 minutes), and in fourth place today's (493 minutes).

Using my own rules (50 mbar depress to repress) the record goes to STS-102 EVA-1 again (540 minutes), with today's in second place — 10 min longer than STS-49 EVA 3.

Using time *actually outside* (egress to ingress), my estimate is that Thout and Hieb from STS-49 EVA 3 holds the record. The STS-102 EVA that scores well on the other measures fails on this one because the astronauts spent a very long time in the depressurized airlock.

MCroft04After reading Scott Kelly's book "Endurance," I have a whole new respect for those doing EVAs. These guys must have been exhausted well before the end of the EVA.
Robert PearlmanOne thing I have noticed that the Russian flight controllers seem to do that their U.S. counterparts do not is to actively (and sometimes forcefully) instruct their cosmonaut spacewalkers to take rest breaks.

That's not to say that U.S. astronauts cannot pause their work, or that the ground might not ask if they need a break or even suggest a pause, but with the Russians it seems to be a much more directed halt of work and rest period.

Contact Us | The Source for Space History & Artifacts

Copyright 1999-2024 collectSPACE. All rights reserved.





advertisement