Payloads:
Actiwatch-Plus: Four Actiwatch Plus devices were connected to the HRF Payload Drawer on HRF Rack 1 to allow battery charging and data downlink. The Actiwatch-Plus is a waterproof, non-intrusive, sleep-wake activity monitor worn on the wrist of a crewmember. It contains a miniature uniaxial accelerometer that produces a signal as the subject moves. The data is stored in non-volatile memory within the Actiwatch until they are downloaded for analysis.
NanoRacks Module-51: Observations and photography were performed on the NanoRacks Module-51 experiment. NanoRacks Modules allow experimenters and students to perform extended on-orbit operations using space-proven hardware. Each individual module houses a unique experiment. Anything approved for transport to ISS can be incorporated into a module experiment, representing any fields of science.
Plant Habitat-03A: The crew installed a new Science Carrier into the Plant Habitat Facility for Plant Habitat-03A Operations and water was added to the Distribution Reservoir. Plants exposed to environmental stress, including spaceflight, undergo epigenetic changes that involve adding extra information to deoxyribonucleic acid (DNA) rather than changing existing information. Epigenetic Adaptation to the Spaceflight Environment – Accumulated Genomic Change Induced by Generations in Space (Plant Habitat-03) assesses whether epigenetic adaptations in one generation of plants grown in space can transfer to the next generation. This could help identify genetic elements that increase the adaptability of plants to spaceflight, a first step toward developing cultivars better suited to provide food, air, and water purification in life support systems on future space missions.
Veg-05: The crew checked on the germination status of the seeds in the twelve plant pillows and added water as necessary. The Pick-and-Eat Salad-Crop Productivity, Nutritional Value, and Acceptability to Supplement the ISS Food System (Veg-05) investigation is the next step in efforts to address the need for a continuous fresh-food production system in space.
Systems:
Temperature and Humidity Control (THC) Intermodule Ventilation (IMV) Flow Measurement Survey: The crew used the Velocicalc tool to take Velocicalc measurements of selected USOS ventilation inlets and outlets as part of system health monitoring. In addition, the crew performed IMV inspections in the Airlock, Node 1, Cupola, Beam, NRAL, Node 3, OGS, Lab, Node 2, and Node 2 Forward & Overhead Visiting Vehicle. IMV refers to the air circulation between modules. The system consists primarily of a number of valves, fans, and air ducts that circulate air between modules to air revitalization equipment so that excessive moisture, heat, particulates, metabolic products, and contaminant can be removed from the atmosphere, smoke detection can be performed, and a homogenous conditioned atmospheric composition is maintained throughout the ISS.
Extravehicular Activity (EVA) Extravehicular Mobility Unit (EMU) Return to Service (RTS): The crew verified successful installation of the Fan Pump Separator (FPS) component in EMU 3009 by performing visual water leakage inspection, structural gas leakage test at the maximum operating suit pressure, and a long-duration leak check. High Speed EMU data from the serial data port from the EMU Data Recorder was used to verify suit telemetry. The EMU is an independent anthropomorphic system that provides environmental protection, mobility, life support, and communications for the crewmember to perform an EVA in Earth orbit.
JEM Experiment Logistics Module – Pressurized (JLP) Cabin Smoke Detector Cleaning: The crew removed the JLP cabin smoke detector to perform cleaning steps using Intra-Vehicular Activity (IVA) Connector Cleaner Tool Kit and associated IVA N2 Cartridge to supply bursts of N2 to remove particles. Smoke detectors sample the atmosphere for particles that might correspond to smoke from a fire. The smoke detectors sample the atmosphere within racks and in the open cabin and determine the amount of smoke using a light sensing sampling chamber or probe. Cleaning and proper maintenance play a critical role in ensuring better operations.
Completed Task List Activities:
- None
Today’s Ground Activities:
All activities are complete unless otherwise noted.
- Water Refill Kit Habitat
- EVA EMU RTS Operations
- EMU Data Recorder Operations
- SPDM Operations
- SSRMS Walkoff
- JEMAL Depress and Vent
- PVCU Data Dump
- Crew Dragon System Checkout
- Cargo Dragon Solar Array Checkout
- THC IMV Flow Measurement Survey
- MSS Power Up and Maneuver
Look Ahead Plan
Thursday, December 29 (GMT 363)
Payloads:
- NRCSD-24 Deploy Imagery (NASA)
- Repository Blood and Urine Collect (NASA)
- Veggie Monitory Surface Sample (NASA)
Systems:
- IFM N1 Nadir CBM CPA 3 Cable R&R
- EMU Cooling Loop Maintenance Scrub
- EHS SSK Collection/Incubation
- EHS MAS Kit Sample Collection
- IFM N2 Smoke Detector Ground Wire R&R
Friday, December 30 (GMT 364)
Payloads:
- BioMonitor Wearable (CSA)
- Cardiobreath Ops (CSA)
- Faraday Facility Removal (NASA)
- Repository Urine Collect (NASA)
- SABL-4 Removal (NASA)
- Spaceborne Computer-2 Removal (NASA)
- Spherecam WORF Setup (NASA)
- Veg-05 Plant Check and Watering (NASA)
Systems:
- ESA Trash Pre-Gather for NG-18 Disposal
- Equipment Gather for DMS
- EMU HUT ORU R&R
- EVA HUT Gather and Stow
- EVA PGT TAK Calibration
- Transfer Cargo Dragon Cargo Ops
Saturday, December 31 (GMT 365)
Payloads:
- Spherecam SSD removal (NASA)
Systems:
- Crew Off Duty
Today’s Planned Activities:
All activities are complete unless otherwise noted.
- Standard Measures Post-Sleep Questionnaire
- Water Refill Kit Review and Habitat H2O Fill
- NanoRacks Maintenance Work Area Preparation
- Nozzle Gather and Restow
- NanoRacks Module-51 Experiment Operations 3
- XF705 Camcorder Setup
- JAXA Payload Laptop Terminal 3 (PLT3) Health Status Check and Cable Connection
- Plant Habitat-03A H2O Procedure Review and Refill
- Plant Habitat-03A Science Carrier Installation Gather and Install
- Plant Habitat-03A MWA Preparation
- JLP Cabin Smoke Detector Cleaning
- Actiwatch Plus HRF Rack 1 Setup and Stow
- EMU Swap
- THC IMV Flow Measurement Survey
- EVA EMU RTS
- CMAU 1.0.1 Software Load
- US EVA Tools Stow
- Columbus CMAU ZBook Stow
- VEG-05 Plant Check/Water
- AHOSS/AHERA Adlink Mini-PC Swap
- Health Maintenance System (HMS) Automated External Defibrillator (AED) Inspection
- HRF Generic Frozen Blood and Urine Collection Hardware Setup
- PMM Pin Kit Unpack
- Veggie Monitoring Reference Material Review