Astronauts install “mod kit’ as work continues on the ISS Power Augmentation program

by | Mar 18, 2022 | International Space Station

On 15 March 2022 NASA astronauts Kayla Barron and Raja Chari opened the hatch at 1212 GMT to begin their spacewalk (US EVA-79). This mission was to install a “mod kit” on power channel 3A’s Mast Canister Assembly (MCA) located on the Starboard-4 (S4) Truss and to release the Multi Layer Insulation (MLI) covers and “break torque” on bolts for two spare BCDUs (Battery Charge Discharge Units) on S6 truss.

Astronauts install “mod kit” to ISS S4 truss. Courtesy: NASA TV

The mod kit they installed is a mounting frame that will allow future astronauts to install a new ISS Roll Out Solar Array (IROSA) as part of the ongoing ISS power systems upgrade. Before closing the hatch, astronauts Barron and Chari completed two additional tasks, first breaking torque on the multiple Orbital Replacement Units (ORUs) stored on 3A Integrated Electronics Assembly on the S4 truss and then perform an electrical patch panel evaluation on the Alpha Magnetic Spectrometer experiment.  After a successful mission lasting 6 hours and 54 minutes, the astronauts closed the hatch on the Quest airlock at 1906 GMT.

This was astronaut Barron’s second EVA after her first spacewalk in December 2021. She has now totalled 13 hours and 26 minutes spacewalking time. This was astronaut Chari’s first spacewalk.

About Seradata

Seradata produce the renowned Seradata database. Trusted by over 100 of the world’s leading Space organisations, Seradata 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




nasaspacexecoreviewsissesaArianespacevideochina25Falcon 9v1.2FT Block 5virgin galacticfalcon 9ULARoscosmosevaDGAspacewalkaviation weekaressoyuzIGTInternational Space StationBeidouawardsspaceRocket LabStarlinkBlue OriginSatellite broadcastingrussiamoonAirbus DSboeingISROCargo Return VehiclemarsblogresearchOneWebspaceshiptwoorionjaxaimpacthyperboladelaymarsEutelsatdemocratrocketlunarhypertextobamagoogle lunar prizelaunchVegabarack obamaconstellationSEStourismnorthfiguresthales alenia spacespaceflightnode 2fundedRaymond LygoIntelsat2009Lockheed MartinExpress MD-2Elon MuskAtlas Vromess2dassault aviationaviationLucy2008wk2sstlukradiomissilesuborbitaldocking portexplorationAriane 5 ECAVirgin OrbittestinternetChina Manned Space EngineeringAriane 5Northrop GrummanSLSLong March 2D/2sts-122Electronflightspace tourism2010cotsnewspapermissile defensegalileospaceportExpress AMU 1Long March 4Cbuildspace stationaltairsoyuz 2-1aProton Minternational astronautical congressshuttleEuropean Space AgencyLauncherOneCosmosIntelsat 23scaled compositeshanleybudgetspace shuttlerulesnew yorkAriane 6shenzhouatvVietnamcongressMojaveboldenLong March 2COrbital ATKnew shepardInmarsatGuiana Space Centeriaccneslunar landerksclawsSpace Systems/LoralUK Space AgencyLong March 4BILSUS Air ForceprotonApolloTalulah RileydarpaFalcon 9v1.2 Block 5Kuaizhou 1AVega CSkylonAstriumeupicturebaseusaastronautdragonlanderfiveeventTelesatNorth KoreaSSLElectron KSAprilSNC50thinterviewfalconSea LaunchLong MarchWednesdaycustomerlinkatlantissuccessor