Minus Eighty Degree Celsius Laboratory Freezer for ISS (MELFI)-1 Autostop and Recovery: MELFI-1 went to Autostop mode Friday evening (during crew sleep). The Cold Stowage team performed troubleshooting including a rack reboot but remained in autostop. Failure signature had anomalous values on the 120 and 28 volt inputs, as well as failure statuses on multiple Motor Drive Electronics (MDE) status bits. This is similar to the power supply failures seen in previous Electronic Unit failures (Failures #2, 3 & 5). The decision was made to perform an Electronic Unit swap. The failed unit (S/N 15) was replaced by the MELFI 1 Spare (S/N 11). During the repair activity, the crew released a small amount of ITCS fluid when removing the return line QD from the UIP. The crew corrected the QD with the standard rotate and tap steps. They also noted significant moisture around the water connections at the Brayton motor QDs in the coldbox, however this is expected as the cold lines collect condensate. The crew commented on corrosion around one of the electrical connections in the coldbox area. Photos were taken for review. When installing the Spare EU in the Prime position, the crew was unable to seat the bottom right fastener (#2 in the procedure). The remaining 7 fasteners were connected and the EU is secure in the rack. The warmest temperatures seen per Dewar were: Dewar 1: -75C, Dewar 2: -73.9C, Dewar 3: -76.4C, Dewar 4: +3.5C, and ground teams do not anticipate any loss of science from this EU failure.

Light Microscopy Module (LMM) Biophysics 1 Configuration: Earlier today the crew configured the LMM for the Biophysics science runs in the Fluids Integrated Rack (FIR). The Advanced Colloids Experiment-Temperature-1 (ACE-T-1) Module was removed from the FIR then the LMM Control Base and LMM objective lenses were installed and configured inside the LMM Auxiliary Fluids Container (AFC). Finally the LMM Petri Base was installed into the AFC. LMM Biophysics 1 (The Effect of Macromolecular Transport of Microgravity Protein Crystallization) will launch on SpaceX-10. When installed, investigators will use the results from LMM Biophysics 1 to examine the movement of single protein molecules in microgravity. By studying the crystals of a higher quality that can be grown in microgravity, scientists will be able to better understand their structure and how they work.

Fluid Shifts Chibis Imaging Day 2: One of the 49S subjects performed their second portion of Chibis imaging. The subject donned the Chibis device, and while the crewmember was exposed to the negative pressure (pulling the fluid feetward), then with ground and onboard operator support they configured the Optical Coherence Tomography (OCT) and the Distortion Product Otoacoustic Emission (DPOAE) hardware, before completing a DPOAE test, OCT exam, and a Tonometry exam. The purpose of this investigation is to characterize the space flight-induced fluid shift, including intra- and extravascular shifts, intra- and extracellular shifts, changes in total body water and lower vs. upper body shifts. Noninvasive techniques are used to assess arterial and venous dimensions and flow parameters, ocular pressure and structure, and changes in intracranial pressure. Lower body negative pressure is being investigated for its ability to mitigate some of the effects of the space flight-induced fluid shift. Results from this investigation are expected to help define the causes of the ocular structure and vision changes associated with long duration space flight, and assist in the development of countermeasures.

Multi-user Droplet Combustion Apparatus (MDCA) Reconfiguration: After the successful removal of the MDCA from the Combustion Integration Rack (CIR) last week, the crew began the reconfiguration to the Cool Flames Investigation (CFI). Today, the crew removed the MDCA Chamber Insert Assembly (CIA) from the Combustion Chamber and restrained it to the MWA. The crew then disabled the ignitor pressure switch and replaced the MDCA internal components. The Combustion Chamber was then reinstalled in the CIR. Reconfiguration activities will continue tomorrow. CFI provides new insight into the phenomenon where some types of fuels initially burn very hot, then appear to go out — but they continue burning at a much lower temperature, with no visible flames (cool flames). Understanding cool flame combustion helps scientists develop new engines and fuels that are more efficient and less harmful to the environment.

Node 3 (N3) Carbon Dioxide Removal Assembly (CDRA) Research Valve Install: The crew removed the Air Selector Valve (ASV)-104 valve from the N3 CDRA and install a new CDRA Developmental Research Valve. This new Research Valve was developed to improve CDRA valve operational lifetime. The valve was delivered on HTV-6 and has the same interfaces, form, fit and function as the existing valve design. The removed ASV-104 valve will be stowed as an on-orbit spare.

Space Station Remote Manipulator System (SSRMS) Operations: Overnight, the Robotics Ground Controllers powered on the SSRMS and maneuvered it to grapple the H-II Transfer Vehicle 6 (HTV6) External Platform (EP) grappled by the Mobile Base System (MBS) Payload/Orbital Replacement Unit (ORU) Accommodation (POA). After the POA released the EP, they maneuvered SSRMS to move and insert EP in the HTV6 Unpressurized Logistics Carrier (ULC) where it was latched and SSRMS was maneuvered to release the EP. Finally, SSRMS was maneuvered to perform a survey of the HTV6 Earth Sensor Assembly (ESA) unit B before grappling HTV6 Flight Releasable Grapple Fixture (FRGF) in preparation of HTV6 release and re-entry scheduled for Friday 27-January.

Internal Thermal Control System (ITCS) Sample Collection: The crew conducted ITCS fluid sampling from the Lab Low Temperature Loop (LTL) sample port. This maintenance is performed periodically to monitor the quality of the water in the ITCS loops.

Today’s Planned Activities

All activities were compelted unless otherwise noted.

Fine Motor Skills Experiment Test

Fluid Shifts Ultrasound 2 HRF Rack 1 Setup Power On From Cargo Transfer Bag

Multi-purpose Small Payload Rack (MSPR) /Group Combustion Module (GCM) Component Activation

Regeneration of Micropurification unit (БМП) Ф1cartridge (begin)

Combustion Integrated Rack Hardware Gather

FLUID SHIFTS. Comm configuration on RS

Fluid Shifts Ultrasound 2 Data Export Alternate

FLUID SHIFTS. Gathering and Connecting Equipment for TV coverage

Fluid Shifts OCT Service Module Setup Alternate

FLUID SHIFTS. Connecting OCT Laptop to RS BRI and HRF PC to ППС-26 (instead of RSE-MED).

Fluid Shifts RSOS Operations Historical Documentation Photography

Multi-user Droplet Combustion Apparatus Session Review

Fluid Shifts OCT Service Module Power On

ALGOMETRIA. Preparation and measurements in strain-gage – and thermoalgometry modes

Fluid Shifts CCFP Service Module Configuration

Fluid Shifts DPOAE Service Module Setup

Multi-purpose Small Payload Rack (MSPR) Combustion Chamber (CC) pressure gauge check and Valve Operation part 1

FLUID SHIFTS. Operator Assistance with Chibis and Gamma-1.

Fluid Shifts Tonometry Service Module Setup

Search for missing ISS RS Hardware (FGB service hardware

Fluid Shifts Experiment Service Module Data Collection – Operator

Fluids Integrated Rack Rack Doors Open

FLUID SHIFTS. Crew Onboard Support System (КСПЭ) Hardware Deactivation and Closing Applications on ЦП SSC

Fluid Shifts CCFP DPOAE Service Module End

FLUID SHIFTS. Comm Reconfiguration to nominal on RS

LMM Biophysics Configuration

Fluid Shifts Tonometry Service Module Stow

Fluid Shifts OCT Service Module Power Off

FLUID SHIFTS. Disconnecting Laptop OCT, HRF and connecting RSE-Med.

Removal of 800А (А103) and 800А (А102) units

Fluid Shifts OCT Service Module Stow Alternate

Multi-purpose Small Payload Rack (MSPR) Combustion Chamber (CC) pressure gauge check and Valve Operation part 2

Multi-user Droplet Combustion Apparatus MWA Prep

Fluids Integrated Rack Rack Doors Close

Multi-purpose Small Payload Rack (MSPR) /Group Combustion Module (GCM) Component Deactivation

Regenerative Environmental Control and Life Support System (RGN) WSTA Fill

Recording of French Experiments Valorisation Message

ALGOMETRIA. Measurements in strain-gage algometry mode

Re-install 800А (А103) and 800А (А102) units at original locations

Combustion Integrated Rack Rack Doors Open

Node 3 Carbon Dioxide Removal Assembly (CDRA) Valve 104 Remove and Replace Part 1

Progress 433 (DC1) Stowage Ops with IMS Support

Combustion Integrated Rack Front End Cap Open

Multi-user Droplet Combustion Apparatus Hardware Replacement

Intermodular TORU Test with Docked Progress 433

Exercise Data Downlink via OCA

Fluid Shifts OCT Laptop USOS Transfer

URISYS Hardware Setup

Progress 433 (DC1) Stowage Ops with IMS Support

Internal Thermal Control System (ITCS) Sample Gathering

VEG-03 Wick Open

Health Maintenance System (HMS) Vision Test

Health Maintenance System (HMS) Vision Questionnaire

Node 3 Carbon Dioxide Removal Assembly (CDRA) Valve 104 Remove and Replace Part 2

Health Maintenance System (HMS) Vision Test

WIRELESS LEAK DETECTOR ULTRASONIC SENSOR DEPLOYMENT

Regenerative Environmental Control and Life Support System (RGN) WSTA Fill

CB/ISS CREW CONFERENCE

Health Maintenance System (HMS) Vision Questionnaire

Regeneration of БМП Ф1 Absorption Cartridge (term)

ALGOMETRIA. Measurements in strain-gage – and thermoalgometry modes Closeout Ops

Completed Task List Items

AQUAPAD Label Modification [Completed Sunday]

ESA PAO Recorded Message “Rugby: 6 Nations” [Completed Sunday]

EVA Simplified Aid For EVA Rescue Swap [Completed Sunday]

Spaceflight Cognitive Assessment Tool for Windows (WinSCAT) Test [Completed Saturday]

Manufacturing Device Print Removal, Clean and Stow [Completed Sunday]

NanoRacks Platform-1 Module-72 Deploy [Completed Sunday]

JPM1F6 ZSR Audit [Completed Saturday]

SOLAR SWITCH OFF – Crew Recorded Message [Completed Sunday]

PhotoTV Node 3 Camcorder cleaning [Completed Saturday]

MSG W203 Cable Exchange [Completed Saturday]

MELFI 1 Electronic Unit Swap [Completed Saturday]

ESA Active Dosimeter Area Monitoring [Completed Saturday]

Heart Rate Monitor (HRM) Reconfiguration [Completed Saturday]

Aerosol Samplers Charger Stow [Completed Saturday]

Ground Activities

All activities were completed unless otherwise noted.

Node 3 Internal Thermal Control System (ITCS) Mode Transition to Single MT

Lab MCA Zero Calibration

Activation of N3 AR Rack and leak checks.

Three-Day Look Ahead:

Tuesday, 01/24: Story Time Meniscus, COL CWSA R&R, Fluid Shifts, JEM ITCS Sample, NORS Transfer

Wednesday, 01/25: N3 MCA R&R, Fluid Shifts, N2/Lab ITCS Sample, Eye Exams

Thursday, 01/26: HTV5 (Depart/ROBOT OBTs, Final load, Hatch Closure, Vestibule Demate, CPA Install), Eye Exams, ARED Detent R&R

QUICK ISS Status – Environmental Control Group: