USOS Extra Vehicular Activity (EVA) #44: Today Randy Bresnik (as EV1) and Mark Vande Hei (as EV2) exited the airlock and successfully performed US EVA #44 with a Phased Elapsed Time (PET) of 6:55. The primary goal of today’s EVA was to remove the degraded Latching End Effector (LEE) A from the Space Station Robotic Manipulator System (SSRMS), replace it with the LEE that is currently located on the Payload/ORU Accommodation (POA), and install the degraded LEE onto the POA. LEE-A had exhibited significantly increased resistance to latch deployment during recent robotics activities prompting today’s replacement. Today’s EVA brought the SSRMS back to full capability.

Fine Motor Skills (FMS): This morning, a 51S crewmember conducted a Flight Day 70 FMS session, which is executed on a touchscreen tablet, where the subject performs a series of interactive tasks. The investigation studies how fine motor skills are affected by long-term microgravity exposure, different phases of microgravity adaptation, and sensorimotor recovery after returning to Earth gravity. The goal of FMS is to answer how fine motor performance in microgravity trend/vary over the duration of a six-month and year-long space mission; how fine motor performance on orbit compare with that of a closely matched participant on Earth; and how performance trend/vary before and after gravitational transitions, including the periods of early flight adaptation, and very early/near immediate post-flight periods.

MagVector: The crew completed the 14th experiment run of the MagVector investigation that began last week. The European Space Agency (ESA) MagVector investigation studies how Earth’s magnetic field interacts with an electrical conductor. Using extremely sensitive magnetic sensors placed around and above a conductor, researchers can gain insight into ways that the magnetic field influences how conductors work. This research not only helps improve future International Space Station experiments and electrical experiments, but it could offer insights into how magnetic fields influence electrical conductors in general, the backbone of our technology.

Biological Experiment Laboratory in Columbus (BioLab) Temperature Control Unit Cleaning and Silica Bag Exchange: The crew cleaned the Biolab TCUs and exchanged the silica gel bags for TCUs 1 and 2. The BioLab is a multiuser research facility located in the European Columbus laboratory. The facility is used to perform space biology experiments on microorganisms, cells, tissue cultures, small plants, and small invertebrates. BioLab allows scientists to gain a better understanding of the effects of microgravity and space radiation on biological organisms.

Today’s Planned Activities

All activities were completed unless otherwise noted.

Extravehicular Activity (EVA) Reminder for EVA In-Suit Light Exercise (ISLE) Preparation

ISS HAM Radio and Video Power Down

EVA COTS UHF Communication Unit (CUCU) Verify off

USOS Extravehicular Activity (EVA) Communication Configuration

USOS Window Shutter Close

Extravehicular Activity (EVA) In-Suit Light Exercise (ISLE) Preparation

Monitoring shutter closure on SM windows 6, 8, 9, 12, 13, 14

RELAKSATSIYA. Charging battery for Relaksatstiya experiment (initiate)

Acoustic Dosimeter Setup Day 3

Photography of EV hatch windows 1, 2 in MRM2 and DC1

Fine Motor Skills Experiment Test – Subject

UDOD. Experiment Ops with DYKNANIYE-1 and SPRUT-2 Sets

Extravehicular Mobility Unit (EMU) Purge

Extravehicular Mobility Unit (EMU) In-Suit Light Exercise (ISLE) Prebreathe

USB Jumpdrive Return and PPS Reconfiguration

Biolab TCU Cleaning and Silica Bag Exchange

UDOD. Photography of the Experiment Session

Crewlock Depress

Flushing БКО for Condensate Water Recovery System [СРВ-К2М] and Elektron-VM Oxygen Supply system [СКО] / БКО (Water Purification Column Unit)

Crewlock Post Depress

Crewlock Egress

Maintenance Activation of Spare Vozdukh Atmosphere Purification System Emergency Vacuum Valves [АВК СОА]

СОЖ maintenance

Degraded LEE (Latching End Effector) Removal

RELAKSATSIYA. Parameter Settings Adjustment

Food Consolidate

NAPOR-mini RSA. Cleaning Onboard Memory Storage БЗУ-М vents

Degraded LEE (Latching End Effector) Temporary Stow

POA (Payload ORU Accommodation) LEE (Latching End Effector) Retrieval

Soyuz 734 IRIDIUM phone charge, setup, start charge

POA (Payload ORU Accommodation) LEE (Latching End Effector) Install on SSRMS

Charging Soyuz 734 IRIDIUM Phone – Battery Status Check

Soyuz 734 IRIDIUM Phone Charge, Terminate Charge

CALCIUM. Experiment Session 6

Soyuz 736 IRIDIUM Phone Charge, Initiate Charge

Water Recovery System Waste Water Tank Drain Init

Charging Soyuz 736 IRIDIUM Phone, Battery Status Check

Soyuz 736 IRIDIUM Phone Charge, Terminate Charge, Teardown of the Setup

Photo documenting LAB1S4 Active Rack Isolation System (ARIS) Snubber Assemblies and Snubber Cups

Degraded LEE (Latching End Effector) Retrieve from Temporary Stowage

Degraded LEE (Latching End Effector) Install on POA (Payload ORU Accommodation)

Water Recovery System Waste Water Tank Drain Termination

IMS Update

INTERACTION-2. Experiment Ops

Regenerative Environmental Control and Life Support System (RGN) Wastewater Storage Tank Assembly (WSTA) Fill

Cleanup and Ingress

Crewlock Ingress

EVA Glove Photo Setup

Crewlock Pre Repress

Crewlock Repress

Extra Vehicular Activity (EVA) Post-EVA Activities

Post Extravehicular Activity (EVA) Communication Deconfiguration

EVA Glove Photo Downlink

Extravehicular Activity (EVA) Camera Image Downlink

Photo/TV Extravehicular Activity (EVA) GoPro Downlink

Metal Oxide (METOX) Regeneration Initiation

Completed Task List Activities

Verify the correct Vacuum Cleaner Debris Bags are installed in each Wet/Dry Vacuum Cleaner. [Evening GMT 277]

Remove and replace the Solid Waste Container

Ground Activities

All activities were completed unless otherwise noted.

EVA support.

Three-Day Look Ahead:

Friday, 10/06: Eye Exams, EVA: Debrief, Tool Gather, and Procedure Review, STPH5 Photo, Insitu, BEAM IMV Insp, Meteor H/D Swap

Saturday, 10/07: EVA Tool Config, DOUG Review, EVA Procedure Review

Sunday, 10/08: US EVA 45 Procedure Review, Crew Off Duty

QUICK ISS Status – Environmental Control Group: