ISS Daily Summary Report – 9/21/2020


SCRAM (Spacecraft Atmosphere Monitor) relocate:  The crew installed the MCA (Major Constituents Analyzer) plug, removed SCRAM from its Node 2 location, installed it into EXPRESS (EXpedite the PRocessing of Experiments to Space Station) rack 8, and removed the MCA plug.  The MCA plug is used to protect the SCRAM’s sensor when the unit is powered off.  SCRAM demonstrates the capabilities of a small, reliable, portable gas chromatograph mass spectrometer instrument aboard the ISS to conduct major and minor elements of air measurement (Nitrogen, Oxygen, Carbon Dioxide, Methane, Water, etc). The instrument transmits data back to the ground research team every two seconds, providing a continuous analysis to the ground research team. It has a mass of less than 9.5 kg, and consumes less than 40 watts of power in its nominal configuration.


Health Maintenance System (HMS) Eye Exams: Today the crew completed the first day of routine eye exams using the SSC Client to test visual acuity, visual field and contrast sensitivity. Eye exams are performed regularly onboard in order to monitor crewmember’s eye health. Eyesight is one of the many aspects of the human body affected by long-duration stays in a microgravity environment.

Water Processor Assembly (WPA) Sampling: The crew performed sampling of the potable bus from the PWD Aux Port in support of ground testing to re-validate the WPA product water for use with EMUs.  The EVA community requested six liters of WPA product water be collected and returned on SpX-21 in order to perform a mini sublimator test following the recent WPA Multi-Filtration (MF) Bed R&R on-orbit. The ECLS and EVA teams opted to collect water in CWC-Is ahead of the mini sublimator test confirming the water is compatible with the EMUs. The sample activity provides an early opportunity to collect water and save crew time by pairing the fill with the sample collection. If the mini sublimator test results are not favorable, EMU water will be launched from the ground as needed and the filled CWC-Is will be used as general potable water.

Completed Task List Activities:

  • Node 1 Deck 2 Clear
  • In Flight Maintenance (IFM) Quick Disconnect (QD) Corrective Maintenance
  • PMM ZSR Consolidate

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

  • MSS Mnvr for SSRMS Walkoff to Node 2 PDGF.
  • MT Translate from WS5 to WS3
  • RAUI 3 Troubleshooting (ongoing)
  • ATS PPL Update
  • Thruster Ops for MT Translate
  • LS FDIR Ops for thruster disable period

Look Ahead Plan

Tuesday, 9/22 (GMT 266)

  • CIR Manifold Bottle Exchange
  • MELFI Dewar Clean & Icebrick Insert
  • Radi-N2 Deploy
  • UWMS/Toilet Power Cable Install


  • Toilet Power Cable Install
  • HMS Ultrasound
  • IFM-ULD-Setup

Wednesday, 9/23 (GMT 267)

  • Astrobee ON
  • EML Gas Valve Open
  • MELFI Icebrick Insert


  • PWD Water Collect
  • EHS CFM Process
  • Cygnus Rndz OBT
  • Cygnus OBT Conf
  • HMS OCT Exams
  • Cygnus OBT Robotics Rvw

Thursday, 9/24 (GMT 268)

  • AWP Eval Setup
  • Food Physiology
  • MATISS 2.5 Remove
  • MELFI Icebrick Transfer
  • Robot Programming Challenge Rehearsal
  • SABL 3 CO2 Controller Install
  • VECTION Foam Replacement


  • HMS OCT Exam – CMO
  • EHS TOCA Run
  • EHS WWB Changeout

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

  • Atmosphere Control and Supply (ACS) High Pressure Nominal Configuration
  • Countermeasures System (CMS) Advanced Resistive Exercise Device (ARED) Cylinder Flywheel Evacuation
  • TBU (Universal Bioengineering Thermostat). Monitoring TBU-V No.07 thermostat temperature and maintaining unobstructed area near TBU-V inlet/outlet vents
  • Wanted Poster for MSG Gooseneck
  • PN28-120 Power Converter inspection (behind SM Panel 231А)
  • PILOT-T. Experiment Ops
  • [БВН] grid cleaning in Soyuz 745 (MRM2)
  • Air Heater Fan [БВН] Screen Cleaning in Progress 444 (DC1)
  • Preparation for Temperature Measurements  of ПТАБ-1М Battery Module No.3 (А303) Case and Connectors
  • MELFI 1 Ice Brick Insert 2
  • Temperature Measurements  of ПТАБ-1М Battery Module No.3 (А303) Case and Connectors
  • Spacecraft Atmosphere Monitor MCA Plug Installation/Removal for Scram Relocate
  • Spacecraft Atmosphere Monitor Removal from NODE 2
  • Monthly Central Control Panel Computer Maintenance. OCA Log File Downlink
  • КАВ sampling from СРВ-К2М down to ФГС using ROS samplers – init
  • WRS Gather for Sample and Fills
  • Nikon camera sync with ISS time
  • Water Recovery System Potable Bus Sample
  • Health Maintenance System (HMS) Vision Test & Questionnaire
  • Health Maintenance System (HMS) Automated External Defibrillator (AED) Inspection
  • TangoLab-2 Hardware Relocate
  • FS1 maintenance
  • Monthly Maintenance of Smart Switch Router (БРИ)
  • Spacecraft Atmosphere Monitor Installation into Spacecraft Atmosphere Monitor Locker
  • Express Rack Locker Insert Removal
  • Transparent Alloys Facility Control Unit Stowage Bag Wanted Poster
  • Water Recovery System CWC-Iodine Fill Initialization/Termination
  • MELFI Dewar Inventory
  • URAGAN. SOVA hardware and photographic equipment installation and activation
  • Water Recovery System CWC-Iodine Swap
  • Spacecraft Atmosphere Monitor MCA Plug Remove
  • NORS O2 Supply
  • Station Support Computer (SSC) System Vent Cleaning