Spacewalk of the Sergeys: Two Russian cosmonauts make repairs and equipment changes to ISS

by | Nov 19, 2020 | International Space Station, NASA, Russia, Seradata News

Russian Cosmonauts Sergey Ryzhikov and Sergey Kud-Sverchcov – the two Sergeys – made an Extra Vehicular Activity (EVA) – more commonly known as a spacewalk, from the airlock on the Poisk module on the International Space Station on 18 November 2020. This was the first ever use of the Poisk module for a spacewalk egress in 11 years since it was first fitted to the ISS.  More normally the soon-to-be-retired Pirs module airlock is used, and thus, with its removal the Poisk module airlock will be used in future. The EVA lasted over five hours and involved a series of replacement and repair tasks.  However, initially the Poisk module was checked via a depressurisation, an initial hatch opening at 1512 GMT, hatch closing at 1520 GMT, repressurisation, depressurisation and then a second hatch opening at 1555 GMT.

The “two Sergeys” on their spacewalk in November 2020. Courtesy: NASA TV

After this was achieved the spacewalkers fully emerged from the airlock, with Kud-Sverchov being first out.  The first fix to be attempted was to replace a Zarya Flow regulator (No 1) but the container could not be opened and this was abandoned.  The Cosmonauts then moved an antenna cable (from the Transit-B antenna) from the Pirs module to the Poisk module. An Imapkt sample plate used to monitor micrometeoroid impacts etc was replaced on the Zvezda module with the old one kept for analysis. The spacewalkers then used towels to “decontaminate” their space suits and the towels used were released into space.

The cosmonauts re-entered the ISS Poisk airlock and the hatch was closed at 2159 GMT.  The Russian space agency/conglomerate uses the first hatch opening and the final hatch shutting as its timing length for the spacewalk duration at 6 hours 47 minutes.

Work and timing details from Jonathan McDowell.

About Seradata

Seradata produce the renowned SpaceTrak Launch & Satellite Database. Trusted by 100 of the world’s leading Space organisations, SpaceTrak is a fully queryable database used for market analysis, failure/risk assessment, spectrum analysis and space situational awareness (SSA).

For more information go to

Related Articles

Russian spacewalkers work hard on ISS Nauka module’s European robot arm

On 28 April 2022 Expedition 67 Flight Engineers and Roscosmos Cosmonauts Oleg Artemyev and Denis Matveev began their EVA (Russian Read more

Russian cosmonauts conduct spacewalk preparing way for Europe’s robot arm

Two Russian cosmonauts on board the International Space Station, Oleg Artemyev and Denis Matveev began a spacewalk from the Poisk Read more

Spacewalking astronauts successfully make modifications to ISS ammonia cooling system but helmet water leak spectre returns

On 23 March, the International Space Station (ISS) Quest airlock was depressurised and Expedition 66 Flight Engineers Raja Chari, of Read more

Billionaire Jared Isaacman works with SpaceX to provide private Polaris spacewalk missions

Jared Isaacman, the US billionaire who recently funded a part-charity human space mission called Inspiration4 which flew into orbit on Read more

Taikonauts make spacewalk from Chinese Space Station…after it dodges Starlink near misses

An EVA (Extra Vehicular Activity) spacewalk by two of the crew of Shenzhou 13 – the fourth made from the Read more

Debris-delayed spacewalk goes ahead as astronauts replace faulty antenna

After a previous spacewalk attempt on 30 November 2021 was cancelled due to a space debris hazard warning, NASA astronauts Read more

International Space Station: Astronauts make another spacewalk and CubeSats are ejected as was a “spacejunk” pallet…plus a reparking of Soyuz MS-17

On 13 March, two NASA astronauts Victor Glover and Michael Hopkins, made an EVA (extra vehicular activity), more commonly known Read more

Spacewalkers finish solar array fixture preparation work

Two astronauts, NASA's Kathleen Rubins and JAXA's Soichi Noguchi, ventured out of the International Space Station (ISS) on 5 March Read more




nasaspacexecoreviewsissesaArianespacevideochina25virgin galacticULAfalcon 9RoscosmosDGAaviation weekaresIGTsoyuzawardsBeidouspacespacewalkSatellite broadcastingmoonInternational Space StationevarussiaCargo Return VehicleBlue OriginmarsblogresearchboeingimpactAirbus DSspaceshiptwomarshyperboladelayjaxademocratISROobamaorionhypertextrocketgoogle lunar prizelunarVegalaunchbarack obamaconstellationStarlinktourismfiguresEutelsatnorthRocket LabSESspaceflightFalcon 9v1.2FT Block 5node 2fundedOneWebRaymond Lygorome2009Express MD-2thales alenia spacess2dassault aviationAtlas VaviationLucy2008wk2radioIntelsatukElon MuskLockheed Martinexplorationtestmissiledocking portsstlinternetsuborbitalsts-122China Manned Space Engineering2010newspapercotsgalileoAriane 5flightmissile defensespaceportspace tourismExpress AMU 1Ariane 5 ECAaltairbuildspace stationProton MSLSshuttleIntelsat 23scaled compositesVirgin OrbitCosmosinternational astronautical congressEuropean Space AgencyrulesElectronbudgetnew yorkhanleyLauncherOneshenzhouspace shuttleatvVietnamboldenAriane 6congressMojaveGuiana Space CenterOrbital ATKNorthrop GrummaniackscSpace Systems/LoralUK Space AgencylawscnesUS Air ForceInmarsatILSprotonnew shepardsoyuz 2-1aTalulah RileyLong March 4CApollousadarpaSkyloneuAstriumastronautlanderLong March 4BpicturebasedragoneventSSLfiveinterviewLong March 2CAprilWednesdaySNC50thfalconlunar landerSea Launchlink7successorcustomeratlantisSpace InsuranceLong March 2D/2conferencenational space symposiumorbiterTelesat15