ISS Daily Summary Report – 6/04/2020


Combustion Integration Rack/Advanced Combustion via Microgravity Experiments (CIR/ACME):  In support of the on-going s-Flame part 2 investigation, the crew removed a 45% H2/ 55% He fuel bottle and replaced it with a 45% CH4/ 55% He fuel bottle.  The purpose of s-Flame is to advance our ability to predict the structure and dynamics, including extinction and instabilities, of both soot-free and sooty flames. The results may contribute to the development of lean-burn engines for improved efficiency and reduced pollutant emissions here on Earth.  S-Flame is one of five experiments hosted by CIR/ACME which is designed to study gaseous flames.

Electrostatic Levitation Furnace (ELF):  The crew retrieved sample cartridge 3 from the ELF, cleaned the sample cartridge, installed sample holder 2, and then reassembled everything into the ELF. This sample installation was in support of the NASA Round Robin experiment.  The Round Robin – Thermophysical Property Measurement (Round Robin) investigation provides researchers with a better understanding of how to measure liquid metal properties to revolutionize how process modeling can support design, flight qualification and production of advanced spaceflight systems.

Electrolysis Measurement (EM): In support of the ongoing EM experiment, the crew performed a series of sample exchanges.  The experiment is expected to process 30 samples over the next several weeks.  Electrolytic Gas Evolution Under Microgravity (Electrolysis Measurement) examines the influence of gravity on electrolytic gas evolution, a complex electrochemical process with multiple applications on Earth and in space. For example, electrolysis generates bubbles that can be used to create pressure differentials in microfluidic devices, such as skin patches, used to deliver medications. Microgravity makes it possible to single out bubble growth and study its effect on the process. 

Plant Habitat-02: The crew disassembled the Plant Habitat Facility, removed a faulty Environmental Control System (ECS) and attempted to install a replacement ECS.  Unfortunately, they experienced a failure of a backing plate which is part of a locking mechanism and the new ECS could not be installed.  Plant Hab-02 was returned to a safe configuration and the ground teams are assessing a forward plan.  This is part of a series of activities to get the facility ready for samples currently launching on NG-14.  Assessment of Nutritional Value and Growth Parameters of Space-grown Plants (Plant Habitat-02) cultivates radishes as a model plant that is nutritious and edible, has a short cultivation time, and is genetically similar to Arabidopsis, a plant frequently studied in microgravity. Developing the capability for food production in space requires understanding cultivation conditions such as intensity and spectral composition of light and the effects of the culture medium or soil. This research could help optimize plant growth in the unique environment of space, as well as evaluation of nutrition and taste of the plants.


H-II Transfer Vehicle (HTV)9 Cargo Operations: Today, the crew continued to perform HTV9 cargo transfer operations.  Ground teams estimate ~18 hours of cargo operation remain to unload the vehicle. 

Extravehicular Mobility Unit (EMU) Secondary Oxygen Pack (SOP) Changeout: Today the crew performed a changeout of the SOP on EMU 3006 which included a checkout of the new SOP following installation. The replacement was part of standard maintenance to the unit. The Secondary Oxygen Pack (SOP) provides oxygen for breathing, ventilation, pressurization, and cooling in the event of a malfunction of the Primary Oxygen Tanks or a suit leak.

Completed Task List Activities:

  • None

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

  • CIR Ground Support
  • UHF-2 Activation
  • Ground Support for Robotics Battery Getaheads

Look Ahead Plan

Friday, 6/5 (GMT 157)

  • Electrolysis Measurement Sample Exchange
  • Food Physiology
  • J-SOLISS removal
  • MSRR/MSL/GEDS sample Exchange
  • NanoRacks MOD-48 Imagery
  • Radi-N2 retrieve and handover 


  • SpaceX-20 SODF Quick Response Crew Trainer
  • HTV Cargo Ops
  • ISS Crew Handover
  • AQM Relocate

Saturday, 6/6 (GMT 158)

  • No payload activities 


  • Crew Off Duty

Sunday, 6/7 (GMT 159)

  • No payload activities 


  • Crew Off Duty

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

  • Power up Soyuz 745 Angular Rate Integration Unit (БИУС)
  • Thermal Amine Scrubber Powercycle
  • Electrolysis Measurement Sample Exchange
  • Electrostatic Levitation Furnace(ELF) sample Cartridge Cleaning & Exchange
  • Monitoring RS structural shell surfaces using Multipurpose Eddy Current Device МВП-2К
  • TERMINATOR. Terminator-Limb PL Installation
  • Air Heater Fan [БВН] Screen Cleaning in Soyuz 745
  • Vacuum cleaning dust collectors ПC1, ПС2 filter cartridges in FGB (pnl 203, 403)
  • Transfer Operations – Pack and stow items on HTV
  • Electrolysis Measurement Sample Exchange
  • Combustion Integrated Rack (CIR) Manifold 4 Bottle Swap
  • Electrostatic Levitation Furnace (ELF) Sample Holder Exchange
  • Preparation to downlink data on monitoring RS structural surfaces
  • ISS Experience Solid State Drive Changeout
  • Electrolysis Measurement Sample Exchange
  • Plant Habitat-02 Facility Disassembly
  • Progress 443 (DC1) stowage and IMS ops
  • SCENARIY. Observation and photography using photo equipment
  • Water transfer from Progress 448 (SM Aft) Rodnik H2O tank 1 to ЕДВ
  • DUBRAVA. Observation and photography using Photo Equipment
  • Plant Habitat-02 Facility Reinstall
  • Life on the Station Photo/Video
  • VIZIR. Session with Photo image coordinate referencing system (СКПФ-УМ)
  • Extravehicular Mobility Unit (EMU) Secondary Oxygen Pack (SOP) Remove and Replace (R&R)
  • TERMINATOR. Deinstallation of Terminator-Limb PL
  • Electrolysis Measurement Sample Exchange [ABORTED]
  • Flight Director/ISS CREW CONFERENCE
  • Regenerative Environmental Control and Life Support System (RGN) Wastewater Storage Tank Assembly (WSTA) Fill