Materials Science Laboratory (MSL): The crew opened the gas and vacuum lines as part of the MSL water loop checkout. The MSL is used for basic materials research in the microgravity environment of the ISS. The MSL can accommodate and support diverse experiment modules. Many material types, such as metals, alloys, polymers, semiconductors, ceramics, crystals, and glasses, can be studied to discover new applications for existing materials and new or improved materials.
CIR (Combustion Integrated Rack): The crew replaced a burned out Advanced Combustion via Microgravity Experiment (ACME) igniter for the Spherical Burner. The CIR includes an optics bench, combustion chamber, fuel and oxidizer control, and five different cameras for performing combustion experiments in microgravity.
Mobile Servicing System (MSS) Operations/Battery Charge Discharge Unit (BCDU) Checkout: Overnight, Ground Controllers completed the BCDU R&R by removing the failed BCDU from the P4 Integrated Electronic Assembly (IEA) and replacing it with the spare BCDU. After completing a successful checkout of the new BCDU, the MSS stowed the failed BCDU back on the External Logistic Carrier (ELC)-1. Since the 4A3 Li-Ion battery was confirmed failed during the BCDU checkout, Ground Controllers removed the failed battery from the P4 IEA this morning and installed it on the H-II Transfer Vehicle (HTV) 7 External Pallet (EP). The extraction of the NiH2 battery at the P4 IEA slot 6 and relocation to slot 5 will occur this Friday with the remainder of battery relocation operations following Monday’s Truss Jumper EVA.
Extravehicular Activity (EVA) #54 Preparations: In preparation for Monday’s planned Truss Jumper EVA, the crew completed the following activities today:
- Procedures review/conference with ground specialists.
- Rechargeable EVA Battery Assembly (REBA) install and powered checkout. REBAs are used to power the glove heaters on the Extravehicular Mobility Units (EMUs) and a successful checkout is required before the crew can go EVA.
Space Integrated Global Inertial Navigation System (SIGI) 2 Remove and Replace (R&R): The primary function of SIGI is to produce the GPS based position, velocity, and attitude outputs needed to control the ISS’s position in space. Additional sensors inside of the SIGI-2 Orbital Replacement Unit (ORU), previously unused, have failed however, prompting today’s R&R to recover these sensors and allow the testing of a proposed Guidance, Navigation, and Control (GNC) software feature. While performing a checkout of the new hardware, ground experts saw Built in Test (BIT) faults and aborted activation. Teams continue to investigate the cause of the anomalous signature.
Crew Health Care System (CHeCS) Contingency On-Board Training (OBT): The 58S crew performed this OBT to review procedures, hardware and communication methods necessary to manage a medical emergency onboard the ISS. Emergency medical equipment was deployed and the crew practiced Cardiopulmonary Resuscitation (CPR) positioning to ensure familiarity with procedure execution.
Treadmill 2 (T2) Quarterly Maintenance: The crew completed this regularly scheduled maintenance to inspect isolators, bottom corner hardware witness marks and bottom snubbers for signs of free play. No issues were identified during the activity.
Completed Task List Activities:
- Fluidics hard drive stow
- Veggie plant check/watering
- Printed wanted poster for tweezer kit
Ground Activities:
All activities are complete unless otherwise noted.
- SPDM 4A battery ops
- EVA procedures conference
Thursday, 4/4:
Payloads
- AWP chk (NASA)
- BCM questionnaires (NASA)
- Standard Measures presleep Questionnaire (NASA)
- ISS HAM powerdowns (NASA)
- RR lab video setup (NASA)
- ISS Experience SD c/o (NASA)
- JAXA PCG sample insert (JAXA)
- LTE Visual test (NASA)
Systems
- EVA prep
- T2 and AV-2 rack config for N3 rack rotation
- RAIU-3 removal
Friday, 4/5:
Payloads
- BCM Post sleep questionnaires (NASA)
- FIRR/LMM vacuum setup and Cleanup Review (NASA)
- Lab bacteria Filter Clean (NASA)
- ISS Experience log Recording(NASA)
- MELFI 2 dewer 3 cleanup
- Standard measure Post Sleep Questionnaire (NASA)
Systems
- EVA prep
- JEM IMV stbd fwd fan and IMV grille cleaning
- MELFI 2 Dewar cleaning
Today’s Planned Activities:
All activities are complete unless otherwise noted.
- HRF Generic Urine Collection Male
- Regenerative Environmental Control and Life Support System (ECLSS) Recycle Tank Drain
- HRF Generic Sample MELFI Retrieval And Insertion Operations
- VOZDUKH Atmosphere Revitalization Subsystem [СОА] Mode Change
- Health Maintenance System (HMS) Vision Test
- Regenerative Environmental Control and Life Support System (ECLSS) Recycle Tank Drain Part 2
- Verification of ИП-1 Flow Sensor Position
- Health Maintenance System (HMS) Vision Questionnaire
- JEM System Laptop Terminal Reboot
- Acoustic Monitor Setup for Static Measurements
- DAN. Experiment Session. Tagup with specialists
- DAN. Operator Assistance with Experiment Operations. Photography
- Health Maintenance System (HMS) Vision Test
- In Flight Maintenance (IFM) Russian Audio Interface Unit (RAIU-3) Gather
- Health Maintenance System (HMS) Vision Questionnaire
- ISS Crew Orientation
- Regenerative Environmental Control and Life Support System (RGN) Wastewater Storage Tank Assembly (WSTA) Fill
- Extravehicular Activity (EVA) Procedure Review
- HRF Generic Urine Collection Stow
- ISS Experience Message Review
- BIOPLENKA. Cryogem-03 Thermostat Setup
- PRODUTSENT. Setup and activation of ТБУ-В No.4 thermostat at +29 deg С setting
- Inspection and Cleaning Nikon Cameras Digital Image Sensor
- СОЖ maintenance
- Extravehicular Activity (EVA) Procedure Conference for US EVA 54
- CHeCS Emergency Health Maintenance System Contingency Drill Training
- Regenerative Environmental Control and Life Support System (RGN) Wastewater Storage Tank Assembly (WSTA) Fill
- Regenerative Environmental Control and Life Support System (RGN) Wastewater Storage Tank Assembly (WSTA) Fill
- Audit of Hard Drives for Return
- Recharging Soyuz 742 IRIDIUM phone; setup, start recharging
- PROFILAKTIKA-2. ACCUSPORT Test. Tagup with specialists
- Health Maintenance System (HMS) Automated External Defibrillator (AED) Inspection
- Combustion Integrated Rack (CIR) Rack Doors Open
- Countermeasures System (CMS) Treadmill 2 (T2) Quarterly Maintenance
- Recharging Soyuz 742 IRIDIUM Phone, Battery Status Check
- Recharging Soyuz 742 IRIDIUM Phone – terminate recharging
- Power on the Adlink Mini PC
- Combustion Integrated Rack Front End Cap Open
- Monthly health check of video recording equipment in the RS
- Recharging Soyuz 742 IRIDIUM Phone, Battery Status Check
- MELFI 2 Dewar Cleaning
- Regenerative Environmental Control and Life Support System (ECLSS) Recycle Tank Fill Part 3
- Environmental Health System (EHS) Total Organic Carbon Analyzer (TOCA) Water Recovery System (WRS) Sample Analysis
- Private Psychological Conference (PPC)
- ACME Igniter Tip Replace (Spherical Burner Installed)
- Recharging Soyuz 741 IRIDIUM Phone – initiate recharging
- Recharging Soyuz 741 IRIDIUM Phone, Terminate Charge, Teardown of the Setup
- Countermeasures System (CMS) Advanced Resistive Exercise Device (ARED) Cylinder Flywheel Evacuation
- ISS Crew Orientation
- Soyuz 741 Kazbek Fit Check
- Rechargeable EVA Battery Assembly (REBA) Installation
- Rechargeable EVA Battery Assembly (REBA) Powered Hardware Checkout
- Public Affairs Office (PAO) High Definition (HD) Config JEM Setup
- Regenerative Environmental Control and Life Support System (RGN) Wastewater Storage Tank Assembly (WSTA) Fill
- PAO Preparation
- Public Affairs Office (PAO) Event in High Definition (HD) – JEM
- Private Psychological Conference (PPC)
- Combustion Integrated Rack Front End Cap Close
- Life Sciences Glovebox (LSG) Work Volume Deploy
- Handover of Increment 59 Crew
- Glovebox Freezer – Life Science Glovebox – Teardown
- ISS Crew Handover
- Combustion Integrated Rack Rack Doors Close
- Environmental Health System (EHS) Total Organic Carbon Analyzer (TOCA) Sample Data Record
- In Flight Maintenance (IFM) Global Positioning System (GPS) 2 Remove and Replace
- LSG Work Volume Stow
- VOZDUKH Atmosphere Revitalization Subsystem [СОА] Mode Change
- USOS Window Shutter Close
- CONTENT. Experiment Ops
- Charging EVA Camera D4 Battery
- Material Science Laboratory Gas Valve Open