Flight Day 120 (FD120) Human Research Program (HRP) Collections: The 49S subject performed a fasting blood draw and urine collections. Both samples were stowed in Minus Eighty Degree Celsius Laboratory Freezer for ISS (MELFI) for freezing and storage until their return and analysis. The Biochemical Profile experiment tests blood and urine samples obtained from astronauts before, during, and after spaceflight. Specific proteins and chemicals in the samples are used as biomarkers, or indicators of health. Post-flight analysis yields a database of samples and test results which scientists can use to study the effects of spaceflight on the body. Repository is a storage bank used to maintain biological specimens over extended periods of time and under well-controlled conditions. This repository supports scientific discovery that contributes to our fundamental knowledge in the area of human physiological changes and adaptation to a microgravity environment and provides unique opportunities to study longitudinal changes in human physiology spanning many missions. Electrostatic Levitation Furnace (ELF) Sample Holder Exchange: The crew performed the second part of the ELF Sample Exchange, installing the Sample Holder and Cartridge into the ELF Work Volume. The ELF is an experimental facility designed to levitate/melt/solidify materials by containerless processing techniques using the Electrostatic Levitation method. With this facility, thermophysical properties of high temperature melts can be measured, and solidification from deeply undercooled melts can be achieved. Multi-Omics Mouse Preparations: In preparation for the JAXA Rodent Research experiment hardware launching on SpaceX-11, the crew set up the CO2 Valve Unit and performed a checkout. Potable Water Dispenser (PWD) Relocate Postponed: The PWD was scheduled to be relocated today but the activity was postponed. The crew spent time yesterday and today looking for an adapter needed for the activity but were unable to locate it. Ground teams are discussing work arounds to allow the relocation to occur without using the adapter. Today’s Planned Activities All activities were completed unless otherwise noted. URAGAN. Observation and photography EKON-M. Observations and photography Lighting Effects Sleep Log Entry HRF Generic Urine Collection HRF Generic Saliva Collection HRF Generic Frozen Blood Collection HRF Generic Sample MELFI Insertion Operations HRF Generic Refrigerated Centrifuge Spin NEUROIMMUNITET. Saliva sample collection Regenerative Environmental Control and Life Support System (ECLSS) Recycle Tank Drain Health Maintenance System (HMS) Stow Electrostatic Levitation Furnace (ELF) Experiment Sample Holder Install Regenerative Environmental Control and Life Support System (ECLSS) Recycle Tank Drain Part 2 LBNP Training In Flight Maintenance (IFM) Waste and Hygiene Compartment (WHC) Full Fill Electrostatic Levitation Furnace(ELF) Sample Removal Acoustic Dosimeter Setup Day 3 Soyuz 732 Stowage Ops for Return. Electrostatic Levitation Furnace (ELF) Sample Cartridge 2 Install Electrostatic Levitation Furnace (ELF) Slit Cover stow Regenerative Environmental Control and Life Support System (RGN) Wastewater Storage Tank Assembly (WSTA) Fill On-orbit Hearing Assessment using EARQ IDENTIFICATION. Copy ИМУ-Ц micro-accelerometer data to laptop HRF Generic Sample MELFI Retrieval Insertion Operations JEM Common Gas Support Equipment (CGSE) Gas Supply Start Pre-Multi-Omics Mouse Item Gathering Recharging Soyuz 733 Samsung PC Battery (if charge level is below 80%) CO2 Vlv Unit Setup IDENTIFIKATSIYA. Copy ИМУ-Ц Micro-Accelerometer Data to HDD for return Combustion Integrated Rack (CIR) Alignment Guide Installation CO2 Vlv Unit Checkout Multi-purpose Small Payload Rack (MSPR) /Group Combustion Module (GCM) Component Deactivation Regenerative Environmental Control and Life Support System (RGN) Wastewater Storage Tank Assembly (WSTA) Fill Recharging Soyuz 732 Samsung PC Battery (if charge level is below 80%) JEM Common Gas Support Equipment Gas Supply Stop Hardware prepack for return and disposal on Soyuz 732 Glove Box Panel Closeout Manufacturing Device Print Removal, Clean and Stow Network Monitoring System (NMS) Laptop Battery Swap VEG-03 Wick Open Regenerative Environmental Control and Life Support System (RGN) Wastewater Storage Tank Assembly (WSTA) Fill Separation of ЕДВ using Separation Unit [УС] Soyuz 732 Transfer Ops Galley Potable Water Dispenser (PWD) Installation [Aborted] Space Headaches – Weekly Questionnaire CALCIUM. Bioekololgiya Cases: Photography, Processing, and Photo Downlink, Pre-pack for Return Regenerative Environmental Control and Life Support System (ECLSS) Recycle Tank Fill Part 3 48S US Prepack Trash Staging Cleanout HRF Generic Sample MELFI Insertion Operations INTERACTION-2. Experiment Ops OA7 Trash Pregather Galley Potable Water Dispenser (PWD) Installation Part 2 Terminate Soyuz 733 Samsung PC Battery Recharge (if necessary) INTERACTION-2. Experiment Ops Preventive maintenance of MRM1 АСП Hatch Sealing Mechanism and Soyuz 732 hatch Regenerative Environmental Control and Life Support System (RGN) Wastewater Storage Tank Assembly (WSTA) Fill HRF Generic Sample MELFI Retrieval Insertion Operations Completed Task List Items Galley Rack Power Source Swap (From aborted Galley Potable Water Dispenser (PWD) Installation Activity) Portable Water Dispenser – TOCA (Total Organic Carbon Analyzer) Water Sample Collection & Analysis Portable Water Dispenser – Environmental Health System (EHS) Coliform Water Detection JLP Cleanup and Reconfiguration Ground Activities All activities were completed unless otherwise noted. Galley Rack Power Source Swap Support – Safing and Power/De-power Assistance Three-Day Look Ahead: Friday, 04/07: Crew off duty Saturday, 04/08: Crew off duty, housekeeping Sunday, 04/09: 49S Crew Emergency Roles/Responsibilities review, Change of Command QUICK ISS Status – Environmental Control Group: Component Status Elektron On Vozdukh Manual [СКВ] 1 – SM Air Conditioner System (“SKV1”) Off [СКВ] 2 – SM Air Conditioner System (“SKV2”) On Carbon Dioxide Removal Assembly (CDRA) Lab Standby Carbon Dioxide Removal Assembly (CDRA) Node 3 Operate Major Constituent Analyzer (MCA) Lab Operate Major Constituent Analyzer (MCA) Node 3 Operate Oxygen Generation Assembly (OGA) Process Urine Processing Assembly (UPA) Process Trace Contaminant Control System (TCCS) Lab Off Trace Contaminant Control System (TCCS) Node 3 Full Up