ISS Daily Summary Report – 9/03/2021

Russian Segment (RS) Extravehicular Activity (EVA) #49: Today, FE-4 Oleg Novitskiy (EV1) and FE-5 Petr Dubrov (EV2) egressed the Mini-Research Module (MRM)-2 airlock and completed the following tasks during today’s 7 hour and 54 minute EVA:

  • Retrieve, route, and mate Power Cable Bundles #1 & #2 from MRM2 to MLM (eight Russian Connectors total)
  • Mate Power Cable Bundle #1 & #2 at PMA1-FGB interface panel
  • Mate MLM-USOS Ethernet Cable (near PMA1 and FGB)

The following task were deferred:

  • Installation of three bridge handrail for translation (one was partially installed but tied down)
  • Mate MLM-USOS Ethernet Cable (MLM)
  • Jettison of Ethernet Cable Reel
  • Deployment of platform with (three) BIORISK-MSK containers on MRM2

United States On-orbit Segment (USOS) Astronaut FE-6 Mark Vande Hei aided the Russian crew in pre and post EVA operations. In this EVA, the Russian crew mated power cables on MLM and near PMA1/FGB and an ethernet cables on the PMA1/FGB. This is the first in a series of EVAs that will focus on integrating MLM to the ISS.


Genes in Space-8 (GIS-8): The crew performed GIS-8 run 2.  In this run, the crew set up the Fluorescence Viewer and miniPCR and performed Freeze and Fly Ops to demonstrate that the concentration of the target DNA molecule can be detected using PCR amplification and the Fluorescence Viewer. Some pharmaceuticals used to maintain astronaut health do not work as well in space, which may be linked to changes in levels of the liver enzymes that metabolize most drugs. GIS-8 tests the Genes in Space Fluorescence Viewer, a new technology for monitoring the expression of genes that control these critical enzymes. This test could lead to a better understanding of spaceflight-induced changes in liver gene expression and may support development of new therapies that can account for the body’s adaptations to spaceflight.

Multiple User System for Earth Sensing Facility (MUSES): The crew performed the MUSES server drawer vent cleaning. MUSES is an Earth imaging platform, as part of the company’s new commercial space-based digital imaging business. MUSES hosts earth-viewing instruments (Hosted Payloads), such as high-resolution digital cameras, hyperspectral imagers, and provides precision pointing and other accommodations. It hosts up to four instruments at the same time, and offers the ability to change, upgrade, and robotically service those instruments. It also provides a test bed for technology demonstration and technology maturation by providing long-term access to the space environment on the ISS.

Technology Box: The crew set up the Technology Box hardware and performed the science run. The main objective of Technology Box (Tetr’ISS) is to conduct experiments gathered in support equipment called ‘Platform’, to illustrate science principles based on physics and chemistry. For this mission, Tetr’ISS contains the Chladni’s Figures experiment: a physical science experiment to observe the sound waves in 3D thanks to fine particles organized according to nodes and antinodes.


Environmental Health Systems (EHS) Total Organic Carbon Analyzer (TOCA) Checkout: The crew temporarily installed the newest TOCA unit, which arrived on SpX-22, into the Lab to perform a functional checkout. After conclusion of the checkout the crew packed the old TOCA for return. The TOCA unit oxidizes organic carbon species present in the water to carbon dioxide gas and measures the concentration using nondispersive infrared spectroscopy.

ISS Ammonia Measurement Kit (AMK) Outfit: The crew replaced expired Drager Tubes installed in the AMKs with new Draeger Tubes that arrived on SpX-23. In the event of a possible ammonia leak, AMKs are used to determine if the ISS environment is safe for the crew.

EVA Preparation: In preparation for the ISS Roll-Out Solar Array (IROSA) 4A preparation EVA currently scheduled for September 12th, the crew completed EVA Procedure Reviews and verified the Nitrogen quantity of the Simplified Aid for EVA Rescue (SAFER).

Completed Task List Activities:

  • None

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

  • RS EVA ground support
  • Primary Power System (PPS) EVA Configuration
  • Video Distribution Subsystem (VDS) EVA Configuration
  • PPS Power Cable 1 Checkout
  • PPS Power Cable 2 Checkout

Look Ahead Plan

Saturday, September 4 (GMT 247)

  • RR-Demo 1 water check


  • EVA Tether Inspection
  • EVA Tool Transfer
  • EVA Battery Charge
  • JSL Cable Reconfiguration

Sunday, September 5 (GMT 248)

  • No utilization activities


  • Crew off-duty day

Monday, September 6 (GMT 249)

  • Astrobee stowage clear
  • GIS-8 run 3
  • GRIP
  • HRF Veg POMS
  • LIDAL temporary relocate
  • Lumina
  • MELFI sample retrieve


  • Airlock Closeout Panel Assessment
  • EVA Camera Configuration
  • SpX Crew Dragon Deorbit, Entry, and Landing Contingencies refresher
  • SpX Crew Dragon Free Flight Contingencies and Emergencies refresher
  • Environmental Health System (EHS) Grab Sample Container (GSC) Sampling Operations

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

  • Comm config in MRM2 for EVA
  • MRM2 and ПХО prep for EVA-49
  • Orlan systems check
  • Technology Box installation
  • ПхО БСС (Spacesuit Interface Unit) Checkout
  • Cold Stowage Double Coldbag Icebrick Stow
  • ISS onboard system configuration before EVA-49
  • Environmental Health Systems (EHS) Total Organic Carbon Analyzer (TOCA) Checkout Part 1
  • Orlan, БСС, comm, and biomed parameter telemetry check
  • Environmental Health System (EHS) – Compound Specific Analyzer-Combustion Products (CSA-CP) Checkout Part 2
  • Orlan and БСС (Orlan interface unit) final inspection prior to entering Orlan
  • MLM-СУ(SM) and [РО]-ПхО hatch closure
  • PRE-EVA airlock operations
  • Polar Dragon Uninstall, Transfer, and EXPRESS Rack Install
  • Water Storage System Water Resupply Tank Gather
  • Powered Payload Uninstall, Transfer, and EXPRESS Rack Install
  • EVA-49 Tasks
  • Dragon Gas Detector Handheld Transfer
  • Environmental Health System (EHS) – Coliform Water Sample Analysis 44 +/- 4 hours post processing
  • Relocate new emer equip for AMKs and trash expired
  • Extravehicular Activity (EVA) Procedure Review
  • IWIS (Internal Wireless Instrumentation System) RSU (Remote Sensor Unit) Firmware Update
  • Environmental Health Systems (EHS) Total Organic Carbon Analyzer (TOCA) Checkout Part 2
  • Multiple User System for Earth Sensing Server Vent Cleaning
  • Simplified Aid for EVA Rescue GN2 Check
  • Genes in Space 8 Freeze and Fly Run 2
  • Hardware Contact Inspection
  • Dragon Cargo Transfer
  • Space Embryo Ops
  • ПГО-СУ hatch closure
  • Post EVA Repress
  • Post-EVA Orlan-MKS servicing
  • RS ISS Reconfiguration for Nominal Ops