Fluid Shifts Operations In the Service Module: With operator assistance from the ground team, crewmembers continued the third week of the Fluid Shifts experiment run completing a Distortion Product Otoacoustic Emission (DPOAE) test, Optical Coherence Tomography (OCT) exam, Tonometry exam, and a Cerebral and Cochlear Fluid Pressure (CCFP) test. The Fluids Shift investigation is divided into three one-week segments: Dilution Measures, Baseline Imaging, and Baseline Imaging using the Russian Chibis Lower Body Negative Pressure (LBNP) device. The experiment measures how much fluid shifts from the lower body to the upper body, in or out of cells and blood vessels, and determines the impact these shifts have on fluid pressure in the head, changes in vision and eye structures.
Microbial Observatory-1 Operations: The first of three Microbial Observatory -1 sample collections this week were completed today when the crew took surface and air sample collections using various devices in multiple locations of the ISS. The investigation monitors the types of microbes present on ISS over a one-year period. Samples are returned to Earth for further study, enabling scientists to understand the diversity of the microbial flora on the ISS and how it changes over time.
Strata-1 Data Transfer: The Strata SD cards were replaced and the data was transferred for transmission to the ground. The experiment will run for a year and investigate the properties and behavior of regolith on small, airless bodies. Regolith is the impact-shattered “soil” found on asteroids, comets, the Moon, and other airless worlds, but it is different from soil on Earth in that it contains no living material. Strata-1’s goal is to give us answers about how regolith behaves and moves in microgravity, how easy or difficult it is to anchor a spacecraft in regolith, how it interacts with spacecraft and spacesuit materials, and other important properties.
NanoRack Platform-2 Modules Removal: NanoRack Modules 20 and 22 were removed from NanoRack Platform-2. Both NanoRack modules are parents of 4 sub-experiments. The NanoRack Platform is a multipurpose research facility on board the International Space Station (ISS).NanoRack Platforms support NanoRacks Modules in the CubeSat form factor by providing power and data transfer capabilities to operate investigations in microgravity.
Dose Tracker: The crew completed entries for medication tracking. This investigation documents the medication usage of crew members before and during their missions by capturing data regarding medication use during spaceflight, including side effect qualities, frequencies and severities.
Portable Emergency Provisions (PEPs) Inspection: The crew audited the PEPs hardware to verify that the emergency response equipment is in the expected location and is free of damage. Among the items that were inspected were Water Mist Portable Fire Extinguishers (PFEs), Portable Breathing Apparatus (PBA) including Quick Don mask Assemblies (QDMAs) and Pre-Breathe Masks.
Dragon Cargo Transfer Status: The crew has completed 38:40 hours of cargo transfer with ~6 hours of transfer remaining to be completed.
Pressurized Mating Adapter (PMA1)/Node 1 Intermodule Ventilation (IMV) Reconfiguration: Following up on the crew’s activity yesterday to reposition the Node 1 Overhead Starboard diffuser vanes so the air flows away from the PMA, today the crew covered the IMV diffuser at NOD1OS4 with Gray Tape and constructed a cone around the diffuser section of PMA1 ducting such that air is redirected back towards the RS. The airflow between the segments is being limited in order to optimize CO2 removal throughout the ISS.
Robotics operations: Ground controllers maneuvered the Space Station Remote Manipulator System (SSRMS) in order to gather imagery of defects which had been intentionally created on the SpX-8 Thermal Protection System (TPS). This was to demonstrate the viability of performing and noticing a defect for future crew vehicles. Then the ground team grappled the SpX-8 dragon capsule in preparation for unberth and release scheduled for May 11.
Today’s Planned Activities
All activities were completed unless otherwise noted.
- RSS1 laptop BRI data download / r/g 2052
- FLUID SHIFTS. Comm configuration for the experiment / r/g 9995
- SEISMOPROGNOZ. Downlink data from Control and Data Acquisition Module (МКСД) HDD (start) r/g 1595
- FLUID SHIFTS. Gathering and Connecting Equipment for TV coverage
- HAM radio session from Columbus
- Remove and Replace EDV-U Waste & Hygiene Compartment (WHC)
- BRI log download from RSS1
- FLUID SHIFTS. OCT Hardware setup in SM
- IDENTIFICATION. Copy ИМУ-Ц micro-accelerometer data to laptop / r/g 1589
- 24-hour ECG Monitoring (termination) / r/g 2107
- Inspection of Portable Breathing Apparatus (PBA) and Portable Fire Extinguisher (PFE)
- WRS Recycle Tank Fill
- NANO Platform-2 Modules Removal
- СОЖ Maintenance
- 24-hour BP monitoring (terminate) / r/g 2108
- FLUID SHIFTS. Connecting OCT Laptop to RS BRI and HRF PC to ППС-26 (in place of RSE-Med) r/g 2158
- FLUID SHIFTS. OCT Power up in SM
- FLUID SHIFTS. CCFP Activation and Settings Adjustments in RS
- FLUID SHIFTS. DPOAE Setup in SM
- RS ISS Module Photos (FGB) / r/g 2114
- FLUID SHIFTS. Operator Assistance with Chibis and Gamma-1 r/g 2157
- FLUID SHIFTS. Chibis Setup / r/g 2157
- FLUID SHIFTS. TONO Hardware setup in SM
- DRAGON Transfers
- FLUID SHIFTS. Gathering Data in SM
- FLUID SHIFTS. Chibis Closeout Ops / r/g 2157
- FLUID SHIFTS. Copying Data from CCFP/DPOAE devices and their deactivation in RS
- FLUID SHIFTS. TONO SM Stowage
- FLUID SHIFTS. OCT Power off in SM
- FLUID SHIFTS. Disconnecting of Laptop OCT, HRF and connecting RSE-Med r/g 2159
- FLUID SHIFTS. Restore nominal comm config
- SEISMOPROGNOZ. Download data from Control and Data Acquisition Module (МКСД) HDD (end) and start backup r/g 1595
- FLUID SHIFTS. Crew Onboard Support System (КСПЭ) Hardware Deactivation and Closing Applications on ЦП SSC
- FLUID SHIFTS. OCT SM Stowage
- MICROBS1. Sample Collection, Part 1
- WRS Recycle Tank Fill
- DRAGON Transfers
- SSC 5 and 16 Config for ROBoT Ops
- Inspection and Photography of SM windows No.2, 13, 14 / r/g 2156
- RADIOSKAF. Tomsk-TPU 120 Nanosatellite Setup r/g 2160
- STRATA SD Card Changeout
- RADIOSKAF. Photo/Video р/g 2160
- VIZIR. Experiment Ops with СКПФУ Hardware r/g 2125
- RADIOSKAF. VHF (Kenwood D700) Transceiver Setup to Broadcast r/g 2160
- Dragon Cargo Operations Conference
- WRS Maintenance
- PAO Hardware Setup
- Crew Prep for PAO
- ARED Exercise
- PAO Event
- OTKLIK. Hardware Monitoring / r/g 1588
- CONTENT. Experiment Ops / r/g 2155
- T2 treadmill Software Update Big Picture Words Review
- IMS Delta File Prep
- Optional Exercise (Sprint)
- WRS Maintenance
- CMOS CB-2 Flash
- URAGAN. Observation and photography using Photo Equipment / r/g 2161
- IMS and Stowage Conference
- DOSETRK Questionnaire Completion
- COGNITION Experiment Ops and Filling Questionnaire
- COGNITION Experiment Ops and Filling Questionnaire
- FLUID SHIFTS. Experiment Reminder
- RADIOSKAF. Hardware Power Off / r/g 2160
Completed Task List Items
- LS1 laptop stow
Ground Activities
All activities were completed unless otherwise noted.
- MSS ops
- C2V2 checkout
- Nominal ground commanding
Three-Day Look Ahead:
Friday, 05/06: RR CASIS ops, Nano Racks Module 9 ops, Fluid Shifts, Microbial sample collect
Saturday, 05/07: Crew off duty, housekeeping
Sunday, 05/08: Crew off duty, Polar transfer
QUICK ISS Status – Environmental Control Group:
| Component | Status |
| Elektron | On |
| Vozdukh | Manual |
| [СКВ] 1 – SM Air Conditioner System (“SKV1”) | On |
| [СКВ] 2 – SM Air Conditioner System (“SKV2”) | Off |
| Carbon Dioxide Removal Assembly (CDRA) Lab | Standby |
| Carbon Dioxide Removal Assembly (CDRA) Node 3 | Operate |
| Major Constituent Analyzer (MCA) Lab | Idle |
| Major Constituent Analyzer (MCA) Node 3 | Operate |
| Oxygen Generation Assembly (OGA) | Standby |
| Urine Processing Assembly (UPA) | Standby |
| Trace Contaminant Control System (TCCS) Lab | Off |
| Trace Contaminant Control System (TCCS) Node 3 | Full Up |