ISS Daily Summary Report – 3/15/2023


Combustion Integrated Rack/Solid Fuel Ignition and Extinction/Growth and Extinction Limit (CIR/SoFIE/GEL): In support of ongoing science, the crew accessed the CIR and exchanged a used manifold gas bottle with a new bottle. SoFIE is a hardware insert for the CIR that enables a wide range of solid-material combustion and fire suppression studies, providing common infrastructure including sample holders, flow control, test sections, external radiant heaters, igniters, and diagnostics for multiple investigations. The GEL experiment studies burning in microgravity, measuring the amount of heating in a fuel sample to determine how fuel temperature affects material flammability. Results could improve understanding of early fire growth behavior and help determine optimal fire suppression techniques, improving crew safety in future space facilities.

Immunity Assay: In continuation of the multi-day experiment session, science samples were collected and processed. The Monitoring the Cellular Immunity by In Vitro Delayed Type Hypersensitivity (DTH) Assay on the ISS (Immunity Assay) investigation aims to monitor the impact of spaceflight stressors on cellular immune functions in a blood sample, with the help of a functional immune test. Up until now, this test could only be accomplished on Earth, and conducted pre- and postflight. With the help of a newly developed assay tube, researchers can also execute this test inflight, which allows for a much clearer assessment of the immune changes that happen in flight.

Materials Science Research Rack/Materials Science Laboratory (MSRR/MSL): The crew gained access to the MSL furnace area and exchanged Sample Cartridge Assemblies (SCAs). The successfully processed Growth of Ternary Compound Semiconductor-C3 (GTCS-C3) SCA was removed and the GTCS-C1 SCA was installed. GTCS grows semiconductor crystals based on zinc selenide (ZnSe) compounds in microgravity. ZnSe-based crystals have potential applications for high-power lasers operating in infrared wavelengths. The investigation compares structural quality of crystals grown on Earth and in microgravity to establish how gravity-driven fluid flows contribute to formation of various types of crystalline defects.

Zero T2: An Isometric Mid-Thigh Pull (IMTP) exercise session was performed on the Advanced Resistive Exercise Device (ARED). Exploration-class missions including Artemis, Gateway, and beyond require an exercise device that is lightweight and has a small footprint. These devices provide a variety of full body resistance exercise options, and aerobic rowing and cycling, but no treadmill. Without a treadmill there is no means of ambulating or reinforcing the motor pattern of walking and therefore the objective of this study is to quantify the effect of no treadmill usage during an entire spaceflight mission on bone, muscle, aerobic, and sensorimotor health and performance. This is important data for determining the adequacy of exercise regimens for exploration missions.


Toilet Dose Pump Removal: The crew removed the Toilet dose pump to be returned on SpX-27 for detailed engineering analysis on the ground. Toilet was in a dormant state due to previous unsuccessful troubleshooting steps that led to the toilet dose pump being declared failed. In order to address a capability gap for robust, low consumables, low profile human metabolic waste management system for future space exploration vehicles, NASA authorized the development of the Universal Waste Management System (UWMS), now known simply as ‘Toilet.’

Emergency Equipment Return: The crew removed and relocated Portable Breathing Apparatuses (PBAs), removed and stowed Quick Don Mask Assembly from Emer Air Supply, and finally retrieved and stowed Emergency Hardware Cargo Transfer Bags (CTBs) all in preparation for return of the equipment. The PBA provides breathable O2, eye/nose/mouth protection, and two-way communications to a crewmember during a fire, rapid depressurization, or toxic spill event.

Venous Thromboembolism (VTE) Exam: The crew used the ultrasound device to perform a VTE scan. This routine medical exam utilizes existing on-orbit eye exam ultrasound hardware for imaging of the neck, clavicle, shoulder, and behind the knee.

Completed Task List Activities:

  • None

Today’s Ground Activities:
All activities are complete unless otherwise noted.

  • Big Fix Patch
  • Regenerative ECLSS RTD Support
  • ISS External Video Survey
  • PRO MSRR Commanding
  • Crew Dragon System Checkout

Look Ahead Plan

Thursday, March 16 (GMT 075)

  • ANITA-2 Sample
  • APM Data Transfer
  • CS DSB Packing
  • Food Physiology
  • Immunity Assay
  • Standard Measures
  • WORF Laptop Check


  • Transfer Cargo Dragon Cargo Operations
  • IFM WHC UR and IF R&R
  • ISS Crew Orientation
  • Dragon Forward Approach Monitoring
  • Docking Dragon Monitoring Tools Setup

Friday, March 17 (GMT 076)

  • Cardinal Heart 2.0
  • Cold Stowage DCB Unpack 2
  • Engineered Heart Tissue-2 Gather
  • ESA Biofilms
  • Food Physiology
  • Ice Cubes Exchange
  • Nanoracks MFA Module-X2 Install
  • PAUL Hardware Transfer
  • Rhodium DARPA
  • Tangolab-3
  • Veg-05 Plant Check and Root Mat Fill


  • Transfer Cargo Dragon Cargo Operations
  • IFM WHC COT Inspection
  • EHS Air Quality Monitor Vent Vacuum
  • Dragon SSC Return

Saturday, March 18 (GMT 077)

  • AWP Doff
  • Bio-Monitor Config File Load
  • Engineered Heart Tissue-2
  • Food Physiology
  • HRP Collection
  • Standard Measures


  • Transfer Cargo Dragon Cargo Operations
  • OBT Dragon Emergency Review
  • HMS ISS EVW Nutrition Tracking

Today’s Planned Activities:
All activities are complete unless otherwise noted.

  • Immunity Assay Collection
  • Immunity Assay Cold Stowage Samples Retrieval and Insertion
  • Stall Removal and Replacement
  • Immunity Assay EDTA and Heparin Sample Processing
  • Toilet Dose Pump Removal and Assist
  • Toilet Stall Repair
  • Emergency Equipment Return
  • Immunity Assay EDTA Sample Spin Conclude in HRF Centrifuge
  • Immunity Assay EDTA S-Monovette Cold Stowage Insertion
  • Station Support Computer (SSC) 20 ZBook Power Cable Swap
  • Immunity Assay Experiment Container Installation
  • Regenerative Environmental Control and Life Support System (ECLSS) Recycle Tank Drain (RTD) and Fill
  • XF705 Camcorder Setup
  • HRF Rack 2 Cobalt Brick Off
  • Combustion Integrated Rack (CIR) Bottle Gather
  • CIR Upper Rack Doors Open
  • CIR Manifold #1 Bottle Replacement
  • CIR Upper Rack Doors Close
  • ISS Crew Orientation
  • VEG-05 Plant Check/Water
  • Flight Director/ISS Crew Conference
  • HRF Rack 2 Cobalt Brick Power and PC Check
  • Urine Transfer System (UTS) Offload EDV Swap
  • Zero T2 Isometric Mid-Thigh Pull
  • Payload Hardware Trash
  • Material Science Laboratory (MSL) SCA Exchange Big Picture Words Review
  • MSL Procedure Review and SCA Exchange
  • Initiating and Terminating EDV Drain to Resupply Tank (RST) using UTS
  • Radio Frequency Identification (RFID) Logistics Power Cycle
  • Transfer Cygnus Cargo Operations
  • Cargo Dragon SSC Relocate
  • Ultrasound 2 HRF Rack 1 Power On
  • EDV Swap for Drain to RST using UTS
  • Health Maintenance System (HMS) Ultrasound 2 and VTE Scan Prep
  • HMS Ultrasound 2 Scan
  • HMS Ultrasound 2 Scan performed by a Crew Medical Officer (CMO)
  • HMS Eye Ultrasound Post Exam
  • Dragon Rendezvous Operations Conference
  • Ultrasound 2 Hardware Power Down
  • Standard Measures Pre-Sleep Questionnaire