Capillary Flow Experiment (CFE) Interior Corner Flow (ICF)-2 Test: Commander (CDR) Wakata set up hardware on the Maintenance Work Area (MWA) and conducted an ICF test using the ICF2 hardware. CFE ICF studies capillary flow in interior corners of vessels with various geometries. Structured inside tanks providing interior corners are used in the design of fuel tanks to promote fuel flow to the outlet of the tank in the absence of gravity. Experimental results will provide the necessary boundary conditions as a function of container cross section and fill fraction. The benchmarked theory aims to improve propellant management aboard spacecraft.
Node 3 (N3) Carbon Dioxide Removal Assembly (CDRA) Leak Check: Flight Engineer (FE) 5 Mastracchio removed the duct located between Air Selector Valve (ASV) 103 and Bed 202 and performed a leak check on the duct with the CDRA Maintenance Adapter. This activity was part of troubleshooting steps to find the source of water in the Sabatier. The leak check successfully passed indicating the system has no leaks. The CDRA was reassembled and reactivated.
In Flight Maintenance (IFM) Crew Quarters (CQ) Overhead Cleaning: Wakata finished cleaning the overhead CQ intake and exhaust ducts, fans, and air flow sensors task initiated yesterday. Due to the large amounts of dust observed during prior CQ cleanings, the crew removed all applicable panels to clean behind them.
Conjunction with Object #27391 Status: Ground teams received updated tracking data for a possible conjunction with Object #27391. The conjunction is of high concern, and ground controllers will be tracking it throughout the evening. If a debris avoidance maneuver is needed, a Pre-Determined Debris Avoidance Maneuver (PDAM) would be executed using 53Progress (P) docked to the Service Module (SM) at approximately 3:30am CDT tomorrow. If PDAM is required, there would be no impact to the 38Soyuz (S) launch planned for March 25th.
Waste and Hygiene Compartment (WHC) / Urine Processing Assembly (UPA) Shock Treatment: Mastracchio performed a shock treatment on the WHC system by sending a pretreat and water solution into the WHC and UPA to eliminate bacteria and fungus believed to be causing gas problems in the UPA. The shock treatment will remain in the system during crew sleep, and the system will be shocked again tomorrow. Mastracchio also replaced the WHC urine filter hose and the EDV-Y to remove possible contamination locations.
Today’s Planned Tasks
- Reaction Self Test [Complete]
- Laptop RS1(2) Reboot / Onboard Computer System (БВС) [Complete]
- SM ПСС (Caution & Warning Panel) Test [Complete]
- RSS1,2 Reboot / r/g 1009 [Complete]
- Daily Planning Conference (S-band) [Complete]
- High Rate Dosimeter (HRD) Data Take [Complete]
- ALBEDO. Battery Charge (start) / r/g 3620 [Complete]
- SHD – Weekly Questionnaire [Complete]
- ТКГ 422 Stowage and IMS Ops / r/g 5106 [Complete]
- SFE – MWA Setup [Complete]
- CFE – Preparation and Hardware Setup [Complete]
- CFE – Hardware Test [Complete]
- ALBEDO. Photo Spectral System (ФСС) Prep, Imagery, Closeout Ops / r/g 5134 [Complete]
- Life On The Station Photo and Video / r/g 5136 [Complete]
- Capillary Flow Experiment (CFE) – Hardware packing into Ziploc bags [Complete]
- MPEG2 Multicast TV Test Using ESA MPEG2 ENCODER prior to Soyuz 712 docking. [Complete]
- PAO Hardware Setup [Complete]
- HAM radio session from Columbus [Complete]
- MATRYOSHKA-R. Monitoring Lulin-5 readings / r/g 4110 [Complete]
- Crew Prep for PAO [Complete]
- СОЖ Maintenance [Complete]
- PAO Event [Complete]
- IFM. CQ Overhead Cleaning [Complete]
- WHC Shock Part 1 [Complete]
- WHC EDV R&R [Complete]
- WHC Hose R&R [Complete]
- WSTA Fill [Complete]
- IMS Update [Complete]
- VZAIMODEISTVIYE Experiment Ops / r/g 4115 [Complete]
- IMS and Stowage Conference [Complete]
- SHD – Weekly Questionnaire [Complete]
- VHF1 Activation/Deactivation / (SM Communications System [РТК], [Complete]
- Daily Planning Conference (S-band) [Complete]
Task List
- ARED Cylinder Evac
- WHC KTO Replace
- WHC EDV R&R
- Roscosmos report
- Uragan photo
- Dragon Robot self study [In work]
- AC vacuum bag R&R
- Replace HRM Transmitter Batteries [Complete]
- EVA FPS tool gather [In work]
- EVA UIA Filter Flush R&R
Ground
- Nominal Commanding
Three-Day Look Ahead:
- Friday, 03/21: COL ATU R&R, Body Mass experiment, Lab Aft Port IMV Cleaning
- Saturday, 03/22: Crew off duty, cleaning
- Sunday, 03/23: Crew off duty
QUICK ISS Status – Environmental Control Group:
| Component | Status |
| Elektron | On |
| Vozdukh | Manual |
| [СКВ] 1 – SM Air Conditioner System (“SKV1”) | Off |
| [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 | Off |
| Major Constituent Analyzer (MCA) Node 3 | Operate |
| Oxygen Generation Assembly (OGA) | Operate |
| Urine Processing Assembly (UPA) | Standby |
| Trace Contaminant Control System (TCCS) Lab | Off |
| Trace Contaminant Control System (TCCS) Node 3 | Full up |