Marrow: Today a 51S crewmember collected breath and ambient air samples for the Marrow investigation which looks at the effect of microgravity on bone marrow. It is believed that microgravity, like long-duration bed rest on Earth, has a negative effect on the bone marrow and the blood cells that are produced in the bone marrow.

Combustion Integrated Rack (CIR) Configuration for Advanced Combustion via Microgravity Experiments (ACME): The crew configured the CIR optics bench that will be used to support the ACME investigation. Due to the amount of hardware requiring installation, configuration activities took a couple of days this week to complete. The ACME investigation is a set of five independent studies of gaseous flames to be conducted in the CIR. ACME’s primary goal is to improved fuel efficiency and reduced pollutant production in practical combustion on Earth. Its secondary goal is to improve spacecraft fire prevention through innovative research focused on materials flammability.

Sarcolab-3: Today a USOS subject ingressed the Muscle Atrophy Research & Exercise System (MARES) chair, located in the Columbus module, while a Russian operator collected ultrasound images of the subject’s right leg during exercise activities. This completed the third and final day of the ankle configuration exercises, which were performed by three different USOS and Russian crewmembers. Later today, the MARES hardware was re-configured to support tomorrow’s knee configuration exercises. The data collected for Sarcolab-3 will be compared to pre and post-flight measurements to assess the impact of hypothesized microgravity induced muscle loss. Myotendinous and Neuromuscular Adaptation to Long-term Spaceflight (Sarcolab) investigates the adaptation and deterioration of the soleus (calf muscle) where it joins the Achilles tendon, which links it to the heel and carries loads from the entire body. Muscle fiber samples are taken from crew members before and after flight, and analyzed for changes in structural and chemical properties. MRI and ultrasound tests and electrode stimulation are conducted to help assess muscle and tendon changes caused by microgravity exposure.

Multi-Omics-Mouse Consolidation: Following the successful completion and return of the Multi-Omics investigation last week, the crew completed item consolidation tasks and returned the Cell Biology Experiment Facility (CBEF) back to its nominal configuration.

EVA Preparation: In preparation for the upcoming EVAs, the crew completed Enhanced Caution and Warning System (EWCS) training and EMU battery charging.

S-Band String 2 Troubleshooting: Yesterday, the ground team swapped S-Band string 1 to string 2 to gain confidence in its performance. On August 6, 2017, String 2 S-Band/UHF Audio Interface (AUAI)-1P showed intermittent functionality after an AUAI Passive Built-In Test (PBIT) fault indication. Space to Ground (S/G) audio on channels 1 and 2 became unusable. Functionality was recovered by switching to S-band string 1. Since the event, multiple attempts to duplicate the signature have been unsuccessful. The plan is to remain on string 2 until the schedule USOS EVAs in early October.

Today’s Planned Activities

All activities were completed unless otherwise noted.

ESA-PAO-RAI PRIX

ASI Biomission script recording

In Situ message recording

PERSEO message recording

ESA-PAO-CORRIERE

Virtual Reality Training (VRT) Extravehicular Activity (EVA) Simplified Aid for EVA Rescue (SAFER)

Extravehicular Activity Mobility Unit (EMU) Enhanced Caution and Warning System (ECWS) On-Board Training

ESA-PAO-GUGGENHEIM

IMS Delta file prep

Handover of Increment 53 Crew

Preparation of Reports for Roscosmos web site and social media

Vacuum cleaning ventilation grille on FGB interior panels (201, 301, 401)

ECON-M. Observation and photography

Multi-Omics-Mouse Item Consolidation

ISS Crew Orientation

Cell Biology Experiment Facility (CBEF) Backup Power Retrieve

Public Affairs Office (PAO) High Definition (HD) Config JEM Setup

Crew Prep for PAO

Environmental Health System (EHS) Total Organic Carbon Analyzer (TOCA) Water Recovery System (WRS) Sample Analysis

Combustion Integrated Rack Hardware Gather

TV conference with the participants of the Space Lesson

Environmental Health System (EHS) Grab Sample Container (GSC) Sampling Operations

MARES Ankle Shaving Preparation

COSMOCARD. Closeout Ops

Marrow Breath And Ambient Air Sample Setup – Subject

SARCOLAB (MARES) Ultrasound 2 Powerup

MARES Ultrasound session

FGB Gas Analyzer Vacuum Cleaning

XF305 Camcorder Setup

СОЖ maintenance

Electrostatic Levitation Furnace(ELF) Power Cable Connection

Ultrasound 2 Guided Data Export

Columbus Video Camera Assembly 2 Adjustment

MARES subject electrodes equipment

Regenerative Environmental Control and Life Support System (ECLSS) Recycle Tank Drain

Verification of ИП-1 Flow Sensor Position

CALCIUM. Experiment Session 4

Regenerative Environmental Control and Life Support System (ECLSS) Recycle Tank Drain Part 2

Public Affairs Office (PAO) Event in High Definition (HD) – Lab

Adjustment of БД-2 passive mode SW ratio

Regenerative Environmental Control and Life Support System (RGN) Wastewater Storage Tank Assembly (WSTA) Fill [ABORTED]

Environmental Health System (EHS) – Coliform Water Sample Analysis 44 +/- 4 hours post processing

Crew Medical Officer (CMO) On Board Training (OBT)

Combustion Integrated Rack Rack Doors Open

Combustion Integrated Rack Optics Bench Configuration 2 for ACME

Crew time for ISS adaptation and orientation

Human Research Facility Ultrasound 2 power off and stowage

MARES Power On and Battery Charge

MARES knee configuration installation

Regenerative Environmental Control and Life Support System (ECLSS) Recycle Tank Fill Part 3

Extravehicular Mobility Unit (EMU) Long Life Battery (LLB) Terminate

Battery Stowage Assembly (BSA) Operation Initiation

MARES Battery Charge control

Combustion Integrated Rack Optics Bench Translation In

On-board Training (OBT) ISS Emergency Hardware Familiarization

Combustion Integrated Rack Rack Doors Close

MARES Knee configuration fit check

Integrated Emergency Procedure Review

EPM Laptop relocation for files downlink preparation

CONTENT. Experiment Ops

Environmental Health System (EHS) Total Organic Carbon Analyzer (TOCA) Sample Data Record

EPM Laptop relocation to MARES

Completed Task List Activities

HMS CCPK Cleanup

52S Unpack Activities

Ground Activities

All activities were completed unless otherwise noted.

Standard commanding

Three-Day Look Ahead:

Thursday, 09/21: Sarcolab, Mouse Habitat Closeout, Rodent Research 9 Audit, EVA Prep, BEAM Ops, Node 3 IMV Fan Cleaning

Friday, 09/22: Sarcolab, ELF Sample Refill, Advanced NanoStep, FIR Troubleshooting

Saturday, 09/23: Housekeeping, Crew Off-Duty

QUICK ISS Status – Environmental Control Group: