Payloads:
Ring Sheared Drop-Interfacial Bioprocessing of Pharmaceuticals (RSD-IBP): The existing syringe and test cell (Sample 24) were removed, and a new syringe and new test cell (Sample 25) were installed into the RSD hardware in the Microgravity Science Glovebox (MSG) Work Volume. The ISS’s RSD module is a containerless liquid system that makes it possible to study protein solutions without the effects of interactions with solid walls. RSD-IBP studies the behavior of high-concentration protein fluids and tests computer models for predicting that behavior. More accurate models could enable production of next-generation medicines for treating cancers and other diseases.
Systems:
In Flight Maintenance (IFM) Waste and Hygiene Compartment (WHC) Pre-Treat Tank Remove & Replace (R&R): Today, the ISS crew removed and replaced the Pre-Treat Tank in the Waste and Hygiene Compartment (WHC) using a -01 configuration Pre-Treat Tank. The E-К Hose attached to the new Pre-Treat Tank will be removed and stowed for future use. To prevent crystallization of urea in urine and mitigate microbial growth, phosphoric acid-based pre-treat and water is pulled by the Dose Pump and sent downstream to mix with urine. WHC is the Russian-built ACY system that has been modified to fit within a standard USOS sized rack.
Extravehicular Activity (EVA) Suit IV Review: In preparation for the upcoming ISS Roll-Out Solar Array (IROSA) EVAs, the ISS crew reviewed the Suit IV Briefing Package containing reminders, emergency briefing, helpful tips, and procedures used during EVA preparations. Next, the crew updated and deployed new Crewlock Depress/Repress Cue Cards and made the associated updates to the ISS EVA Systems Checklist book. IROSA is a modification to the existing Solar Array Wings (SAWs), providing additional power to the station.
Environmental Control and Life Support System (ECLSS) Portable Emergency Provisions (PEPS) Inspection: Today, the ISS crew verified the Portable Fire Extinguisher (PFE), Extension Hose Tee Kit, the Portable Breathing Apparatus (PBA), and Pre-Breathe Mask were all free of damage to ensure functionality. The PBA consists of a Quick Don Mask (QDM) Assembly connected to a PBA Oxygen Reducer/Cylinder Assembly). The PEPS matrix tracks the location and status of all emergency provisions onboard the ISS.
Completed Task List Activities:
- N/A
Today’s Ground Activities:
All activities are complete unless otherwise noted.
- ARS Node 3 CDRA 6 Half Cycles
- TCS TRRJ Locking/Unlocking
- ST&R Media Change Support
- HRF Rack 2 Rack Power Up/Down Commanding
- ITCS IFHX Limits Set
- TCS Reconfiguration
- PRO LSG Facility Activation/Deactivation Commanding
- SDMS Activation
Look Ahead Plan
Thursday, May 25 (GMT 145)
Payloads:
- AstroPi Lens Removal
- Bio Data Samples (Ax-2)
- Cancer in LEO (Ax-2)
- ISS HAM Pass (Ax-2)
- NanoRacks Liquid Fireworks (Ax-2)
- RNA Response (Ax-2)
- STELLAR Stem Cells (Ax-2)
- Food Physiology Diet Brief
- JWRS MSPR closeout
- NanoRacks Cloud Seeding MainFrame A Install (Ax-2)
- RSD Operations
- Standard Measures Pre-Sleep and Saliva prep
Systems:
- Cargo Transfer to Dragon
- HMS – OCT2 Exam
- HMS – Ultrasound 2 Scan
Friday, May 26 (GMT 146)
Payloads:
- Bio Data Samples (Ax-2)
- Cancer in LEO (Ax-2)
- Comm Systems (Ax-2)
- Cosmic MultiShield (Ax-2)
- Digital Voice (Ax-2)
- ISS HAM Pass (Ax-2)
- MIT SkinSuit (Ax-2)
- RNA Response (Ax-2)
- STELLAR Stem Cells (Ax-2)
- ISS Ham Pass
- Standard Measures Saliva Collect and PostSleep
Systems:
- JEM WIS Environmental Monitor RSU Battery R&R
- EVA DOUG Review
- SpaceX-28 Dragon Rendezvous Review CBT
- Cargo Transfer to Dragon
- Dragon Docking System Cleaning
- SSC Imagery Transfer Troubleshooting
Saturday, May 27 (GMT 147)
Payloads:
- Bio Data Samples (Ax-2)
- Cancer in LEO (Ax-2)
- Comm Systems (Ax-2)
- Imagery Processing (Ax-2)
- ISS HAM Pass (Ax-2)
- JAMSS Odor Visualization (Ax-2)
- MIT SkinSuit (Ax-2)
- RNA Response (Ax-2)
- STELLAR Stem Cells (Ax-2)
Systems:
- PAM Facilitator Time
Today’s Planned Activities:
All activities are complete unless otherwise noted.
- T2 Exercise Video Equipment Setup/Stow
- Cargo Transfer to Dragon
- PAM Facilitator Time
- HMS Vision Test and Questionnaire
- SpX-CREW DRAGON Emergency Departure Review
- ST&R LSG Facilitator, Cleanup, and H/W Insert
- ST&R Insert/Remove Habitat
- IFM WHC Pre-Treat Tank R&R
- LSG Front Glove/Sleeve Swap, Primary Crew Restraint Unfold/Fold
- DNA Nano Therapeutics (AX-2) LSG Assist
- ISS HAM Radio Power Down/Up in Service Module
- ISS HAM Kenwood Radio Power Down/Up in Columbus
- EVA Suit IV Review
- PAO Event in Columbus
- RSD-IBP Syringe and Test Cell Removal and Install
- USOS Window Shutter Close
- RSD MELFI Sample Retrieve
- PAO Social Media Event
- ECLSS PEPS Inspection
- SODF EVA Systems Update
- KERMIT Power Up, Power Down and Stow
- EVA Service and Cooling Umbilical Route
- JSL Router Reboot