Human Research Program (Biochemical Profile, Marrow, Vascular Echo, and Repository): 53S crewmembers collected blood and urine samples for their Return minus 14-day session of the Biochem Profile, Marrow and Repository investigations. One of the 53S crewmembers also started a 24-hour ambulatory blood pressure monitoring session. Blood samples are being processed in the alternate non-refrigerated centrifuge due to the issues experienced yesterday with the refrigerated centrifuge. A 54S crewmember also collected urine samples for his Flight Day 60 session of the Biochem Profile and Repository investigations.

The Biochemical Profile investigation tests blood and urine samples obtained from astronauts before, during, and after spaceflight. Specific proteins and chemicals in the samples are used as biomarkers, or indicators of health. Post-flight analysis yields a database of samples and test results; which scientists can use to study the effects of spaceflight on the body.

Marrow 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.

Vascular Echo examines changes in blood vessels and the heart while the crew members are in space, and then follow their recovery on return to Earth. The results could provide insight into potential countermeasures to help maintain crew member health, and quality of life for everyone.

Repository is a storage bank used to maintain biological specimens over extended periods of time and under well-controlled conditions. The repository supports scientific discovery that contributes to our fundamental knowledge in the area of human physiological changes and adaptation to a microgravity environment and provides unique opportunities to study longitudinal changes in human physiology spanning many missions.

Food Acceptability: A crewmember completed a Food Acceptability questionnaire today. The Food Acceptability investigation seeks to determine the impact of repetitive consumption of food currently available from the spaceflight food system. Results will be used in developing strategies to improve food system composition to support crew health and performance on long duration missions.

OA-9 Robotics Onboard Training: This afternoon, the crew scheduled to capture OA-9 performed an additional Robotics Onboard Trainer (ROBoT) session and continued their review of Cygnus Attached Phase procedures prior to tomorrow’s OA-9 capture and berthing. ROBoT is an on-orbit version of the ground-based Dynamics Skills Trainer (DST) that simulates robotics operations with graphical feedback.

Orbital-ATK 9 (OA-9): This evening ground teams will prepare and inspect the Node 1 Nadir Active Common Berthing Mechanism (ACBM) in preparation for OA-9 capture and berthing planned for tomorrow, May 24th, 4:20 am CT.

Extravehicular Activity (EVA) Preparations: Today the crew continued configuring EVA tools and equipment needed during the upcoming US EVA #51 Node 2 EWC planned for June 14th. Additionally, the crew swapped Extravehicular Mobility Units (EMUs) on the EMU Don/Doff Assembly (EDDAs) for upcoming EVA prep activities.

Today’s Planned Activities

All activities are complete unless otherwise noted.



HRF Generic Urine Collection

HRF Generic Sample MELFI Insertion Operations

HRF Generic Centrifuge Frozen Blood Collection

MORZE. Psycho-physiological Evaluation: Tsentrovka, SENSOR Tests

Vascular Echo 24-Hour Ambulatory BP Monitoring Initialization – Subject

MORZE. Log Entry of Liquid and Food (Medicine) Intake

Wastewater Storage Tank Assembly (WSTA) Fill

HRF Generic Centrifuge Frozen Blood Collection Spin Conclude

HRF Generic Sample Photo

СТТС Reconfiguration in MRM1

XF305 Camcorder Setup

SEPARATION. СРВ-У-РС Flush.

Mouse Stress Defense Closeout

Acoustic Monitor Setup for Crew Worn Measurements

HRF Generic Centrifuge Frozen Blood Collection Conclude And Stow

Brine/urine transfer from ЕДВ to Progress 438 Rodnik H2O tank 2

Glove Box Closeout

Conference of Search and Rescue (ГПСК) specialists with returning crew (S-band)

MELFI Icebrick Cleanup

PCS Laptop Relocate

Crew Departure Preparations for Return to Earth

Installation of the MPCC Demo Payload Laptop (T61p) in Columbus

Cygnus Capture Review

Mouse Habitat Unit Interface Unit Removal

ISS HAM Service Module Pass

SEPARATION. СРВ-У-РС Flush.

Activation and BIOS Setup of the MPCC Demo Payload Laptop

Cell Biology Experiment Facility (CBEF) Wipe Post Mouse Stress Defense

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

Comm reconfig for nominal ops

On-board Training (OBT) Cygnus Attached Phase Operations review.

Audio Conference with the Participants of the Youth Educational Forum “Ladoga”

Multi Omics Question

Food Acceptability Questionnaire Subject

Spaceflight Cognitive Assessment Tool for Windows (WinSCAT) Test

Public Affairs Office (PAO) High Definition (HD) Config LAB Setup [Aborted]

Max Cycle Ergometer w/ Vibration Isolation & Stabilization (CEVIS) Portable PFS Partial Set Up

URAGAN. Completion of Icarus PL Cable Installation.

Formaldehyde Monitoring Kit (FMK) Deployment Operations

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

KUBIK Temperature Adjustment to 20°C

Cygnus Capture Review

Surface Sampler Kit (SSK) and Microbial Air Sampler (MAS) Analysis T + 5

Max Cycle Ergometer w/Vibration Isolation & Stabilization (CEVIS) Portable PFS Power Up

On-board Training (OBT) Cygnus Robotics Onboard Trainer (ROBoT) Session 2

Vascular Echo 24-Hour Ambulatory BP Monitoring Crew Time Payback

URISYS Hardware Setup

Max Cycle Ergometer w/Vibration Isolation & Stabilization (CEVIS) Portable PFS

MORZE. Psycho-physiological Evaluation: Cattell’s Test

Sampling condensate water [КАВ] upstream of СРВ-К2М Gas-liquid mixture filter (ФГС) to drink bags, end

MORZE. Psycho-physiological Evaluation: Strelau Test

Extravehicular Mobility Unit (EMU) Swap

Extravehicular Activity (EVA) Tool Configuring

MORZE. Psycho-physiological Evaluation: SUPOS Test

Max Cycle Ergometer w/Vibration Isolation & Stabilization (CEVIS) Portable PFS Partial Stow

MORZE. Closeout Ops

MORZE. Experiment setup

Acoustic Monitor Battery Swap

Ghost camera setup in Cupola

Max Cycle Ergometer w/Vibration Isolation & Stabilization (CEVIS) Portable PFS Conclude

Completed Task List Activities

None

Ground Activities

All activities are complete unless otherwise noted.



JEM RMS SFA Installation

Node 1 CBM Inspection

Three-Day Look Ahead:

Thursday, 05/24: 53S Return Stowage and departure preps, Cygnus Rndz/Berth, Cygnus Hatch Open, JEM LAN extender activation, CMO OBT, CIR Bottle Relocate, JEM MLT2, Vascular Echo

Friday, 05/25: 53S Rtn Prepack and DM Photo Survey, Cygnus Cargo Ops, MERLIN Sample Xfer, MSG VUE HD Setup, TangoLab card R&R, JEMAL Slide Table Reconfig

Saturday, 05/26: Weekly Housekeeping, Crew Off-Duty

QUICK ISS Status – Environmental Control Group: