Payloads:
Human Research Facility-2 (HRF-2): The One Terabyte Hard Drives (HDDs) were removed from the HRF-2 UltraBay and PC2 Zbook and replaced with new HDDs. The old HDDs will be trashed. HRF-2 provides an on-orbit laboratory that enables human life science researchers to study and evaluate the physiological, behavioral, and chemical changes induced by spaceflight. Research performed using HRF-2 provides data to help scientists understand how the human body adapts to long-duration spaceflight.
Minus Eighty-Degree Laboratory Freezer for ISS (MELFI): Ice Bricks were inserted into MELFIs 1, 2 and 3. MELFI is a cold storage unit capable of maintaining experiment samples at ultra-cold temperatures throughout a mission. The MELFI units use nitrogen as a working fluid and have standard set points of -95°C, -35°C and 2°C.
Veg-05: The plants growing in the two Veggie facilities were inspected, watered as needed, and photographed. The plant Root Mats were filled. 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:
69 Soyuz Docking: The uncrewed 69S vehicle successfully docked to the MRM2 zenith port at 6:58 PM CT on Saturday, February 25th following a 33-orbit rendezvous with the ISS. 69S launched at 6:24 PM CT on Thursday, February 23rd from the Baikonur Cosmodrome.
Crew 6 Launch Scrub: The planned launch of Crew-6 this morning at 12:45 AM CT from Launch Complex 39A at KSC was scrubbed due to a ground system issue. The next launch attempt will now occur on Wednesday, March 1 at 11:34 PM CT pending resolution of the technical issue preventing today’s launch.
In Flight Maintenance (IFM) Waste Hygiene Compartment (WHC) Piping R&R: As part of regular maintenance, the crew replaced the piping between the pump separator and the dose pump. The piping is replaced every six months as a preventive measure to ensure continued performance and preclude a functional failure.
Environmental Health System (EHS) Compound Specific Analyzer – Combustion Products (CSA-CP): Today, the crew replaced the battery packs in all CSA-CPs and calibrated the units. The CSA-CPs provide real-time readings following a combustion event and subsequent clean-up efforts. The CSA-CPs are also used for continuous monitoring of carbon monoxide levels in the ISS.
EHS Sample Operations: The crew performed periodic EHS water sampling by collecting water samples from the Potable Water Dispenser (PWD) for in-flight and post-flight analysis. In-flight samples were used to perform a Total Organic Carbon Analyzer (TOCA) analysis that measures the amount of organic constituents in the potable water. The crew also tested the water samples for the presence of Coliform bacteria utilizing a Coliform test bag. These tests are used to determine if the drinking water is still safe for crew consumption.
Completed Task List Activities:
- WHC KTO Replace
Today’s Ground Activities:
All activities are complete unless otherwise noted.
- PMA Preparations for Ingress
Look Ahead Plan
Tuesday, February 28 (GMT 059)
Payloads:
- HRF-PC2 Software Load (NASA)
- MELFI Icebrick Inserts (NASA)
- Repository Collect (NASA)
- Standard Measures Collection (NASA)
Systems (replan in work):
- SAFER Battery Ops
- Crew Departure Prep
Wednesday, March 1 (GMT 060)
Payloads:
- DOSIS-3D PDP Deinstall and Install (ESA)
- GLACIER Desiccant Swaps (NASA)
- HRF VEG POMS Questions (NASA)
- MELFI Icebrick Inserts (NASA)
- Plant Habitat-03A H2O Add/Remove (NASA)
- Repository Collect (NASA)
- Standard Measures Collect and Setup and Presleep Question (NASA)
- Veg-05 Check (NASA)
Systems (replan in work):
- Crew Departure Prep
Thursday, March 2 (GMT 061)
Payloads:
- Actiwatch Plus Donning (NASA)
- BCM ROBoT Test (NASA)
- Food Physiology Diet Brief (NASA)
- JWRS Post Ops (JAXA)
- MSG HW Audit (NASA)
- Repository Collect (NASA)
- Sphere Camera-1 SSD checkout (NASA)
- Standard Measures Collect and PostSleep Question (NASA)
- Story Time In Space-9 Read and Photo (NASA)
Systems (replan in work):
- Crew-6 Arrival Ops
- Crew Departure Prep
- Transfer Cygnus Cargo Ops
- IFM Node 3 Moisture Filters R&R
Today’s Planned Activities:
All activities are complete unless otherwise noted.
- HRF Generic Collection
- HRF Generic Centrifuge Setup and Collection
- Photo TV Battery Charge Initiation/Swap/Deactivation
- Cargo Transfer to Dragon
- HRF Generic MELFI Sample Retrieval and Insertion
- EHS CSA-CP Extended Maintenance
- Transfer Cygnus Cargo Operations
- IFM WHC Piping R&R
- Crew Arrival Preparations
- SSC18 Hard Drive Swap
- Crew Dragon Station Support Computer Relocate
- iPad Deploy for Crew-6 App Updates
- EHS PWD Sample Collect
- Node 2 Ovhd Hatch Open/Close
- EHS Coliform Water Processing
- EHS TOCA PWD Sample Analysis/Data Record
- [Aborted] Countermeasures System (CMS) Orthostatic Intolerance Garment (OIG) Don/Doff
- Health Maintenance System (HMS) Profile of Mood States (POMS) Questionnaire
- MELFI 1 Ice Brick Insert 1
- Payload Data Router Power On
- VEG-05 Plant Check/Water
- HRF PC2 Hard Drive Changeout
- VEG-05 Root Mat Fill
- Dragon Rendezvous Operations Conference
- Crew Alternate Sleep Accommodation (CASA) Keep-Out Zone (KOZ) & Door Stop Check
- Docking Dragon Monitoring Tools Setup
- Dragon Station Support Computer Deploy
- Dragon Crew Rendezvous Dock Activity