ISS Daily Summary Report – 6/16/2021

USOS Extravehicular Activity (EVA) #74 – 2B IROSA Install: EV1 (Thomas Pesquet) and EV2 (Shane Kimbrough) performed a 7 hour and 15 minute EVA and completed the following tasks in support of Integrated Roll-Out Solar Array (IROSA) installation.

  • Release IROSA from FSE
  • Get ahead task: Release Outer Hinge Restraint Bolt, R5
  • Install IROSA on P6 2B Mast Canister [Partially completed]

Due to complications with aligning IROSA on the Mounting Bracket when unfolded, they were unable to complete the following tasks:

  • Connect IROSA Electrical Connectors
  • Deploy P6 2B IROSA
  • Retrieve APFR 3 and return IV

Ground teams have established that with IROSA soft captured and folded on the Mounting Bracket and bolts M31-M34 driven, IROSA is in a safe configuration.


Antimicrobial Coatings (Boeing Environment Responding Antimicrobial Coatings): Per standard procedure, the crew touched both the coated and uncoated coupons for this long-term investigation, and then took photos of the experiment surfaces. Boeing Environment Responding Antimicrobial Coatings tests an antimicrobial coating on several different materials that represent high-touch surfaces. Some microbes change characteristics in microgravity, which could create new risks to crew health and spacecraft systems as well as creating the possibility of contaminating other planetary bodies. The samples remain in space approximately six months then return to Earth for analysis.

OBIS (Oral Biofilms in Space): The crew hydrated the OBiS assembly session packs 6-10 with Fluid Bag 2 into the Fluid Chamber and then restowed the packs into the MERLIN for incubation. Fluid Bag 2 is a fluid medium containing chemicals designed to promote bacterial growth along with oral care bioactives within the Fluid Chamber. Effect of Environmental Stressors on Oral Biofilm Growth and Treatment (Oral Biofilms in Space) studies the effect of gravity on the behavior of oral bacteria, including the structure of the bacterial community, and changes in bacterial response to common oral care agents. The findings could support development of novel treatments to fight oral diseases such as caries, gingivitis, and periodontitis. The investigation also could provide insights into how microgravity affects the microbiome of other mucosal surfaces in the body.


Dragon Cargo Transfer: Today, the crew performed SpX-22 cargo transfer operations and will continue to work cargo operations throughout the week.

Completed Task List Activities:

  • None

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

  • Configuration of the Video Distribution Subsystem (VDS) in support of the Extravehicular Activities (EVA)
  • Support for 2B IROSA EVA
  • Space Station Remote Manipulator System (SSRMS) IROSA Support

Look Ahead Plan:

Thursday, June 17 (GMT 168)

  • OBIS Bag3 initiate (NASA)
  • Food Acceptability (NASA)
  • ManD print of AstroVest parts (NASA)
  • Lyo-2 Sample stow and install (NASA)
  • Food Physiology Brief (NASA)
  • Standard Measures Presleep Question (NASA)
  • NRCSD-20 Deployer removal (NASA)


  • EVA debrief
  • EVA tether inspection
  • EVA battery charge
  • EMU water recharge
  • In Flight Maintenance (IFM) Waste and Hygiene Compartment (WHC) Pre-Treat Tank Remove & Replace

Friday, June 18 (GMT 169)

  • JAXA Moderate Temp PCG Sample prep (JAXA)
  • AC Touch (NASA)
  • Food Acceptability (NASA)
  • NanoRacks Module-83 Photo (NASA)
  • Standard Measures Post Sleep Question (NASA)
  • PK-4 disk audit (Joint)


  • IDA-Zenith MLI Velcro Inspection and Re-seat
  • EVA ROBO procedure review
  • EVA tool configuration
  • EVA procedure review
  • EVA ROBoT session

Saturday, June 19 (GMT 170)

  • Repository Urine setup (NASA)


  • EVA procedure review
  • EVA tool audit
  • EVA procedure conference

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

  • Communication configuration for EVA
  • Extravehicular Activity (EVA) In-Suit Light Exercise (ISLE) Preparation
  • Extravehicular Mobility Unit (EMU) Purge
  • Extravehicular Mobility Unit (EMU) In-Suit Light Exercise (ISLE) Prebreathe
  • Crewlock Depress
  • Crewlock Egress
  • Worksite Prep
  • Worksite Prep / Space Station Remote Manipulator System (SSRMS) Setup
  • Space Station Remote Manipulator System (SSRMS) Integrated Roll-Out Solar Array (IROSA) Support
  • Integrated Roll-Out Solar Array (IROSA) Release from Flight Support Equipment (FSE)
  • Integrated Roll-Out Solar Array (IROSA) Install [Partially completed]
  • Antimicrobial Coatings Touch
  • Environmental Health System (EHS) – Microbial Capture Device (MCD) and Coliform Water Sample Analysis post processing
  • Oral Biofilms In Space (OBiS) Flow operations
  • Water Recovery System (WRS) Waste Tank Sample
  • Integrated Roll-Out Solar Array (IROSA) Deploy [Not Completed]
  • Public Affairs Office (PAO) Social Media Event
  • Worksite Cleanup
  • Dragon Cargo Transfer
  • EVA Crew Lock Ingress
  • Crewlock Repress
  • Extra Vehicular Activity (EVA) Post-EVA Activities
  • Photo/TV Extravehicular Activity (EVA) Camera Disassembly
  • Return to nominal communication configuration after USOS EVA