Ahead: Week 4 of Increment 16. "Station sleep cycle: 1:00am - 4:30pm EST.
The crew conducted the regular weekly three-hour task of thorough station cleaning. (""Uborka"", normally done on Saturdays, includes removal of food waste products, cleaning of compartments with vacuum cleaner, damp cleaning of the Service Module (SM) dining table, other frequently touched surfaces and surfaces where trash is collected, as well as the FE's sleep station with a standard cleaning solution; also, fan screens and grilles are cleaned to avoid temperature rises. Special cleaning is also done every 90 days on the HEPA (high-efficiency particulate air) bacteria filters in the Lab.)
As part of the house cleaning, FE-1 Yuri Malenchenko performed preventive maintenance cleaning on the V3 fan screen in the DC1 (Docking Compartment) and on the VPkhO, VdPrK, VPrK and TsV2 fan grilles in the FGB.
Later, the FE-1 completed the routine maintenance of the SOZh system (Environment Control & Life Support System, ECLSS) in the SM, including ASU toilet facilities systems/replaceables plus the weekly collection of the toilet flush counter (SPK-U) and water supply (SVO) readings for calldown to TsUP/Moscow.
Malenchenko also gathered weekly data on total operating time & "On" durations of the Russian POTOK-150MK (150 micron) air filter unit of the SM's SOGS air revitalization subsystem for reporting to TsUP.
In preparation of tomorrow's planned transfer of the PMA-2 (Pressurized Mating Adapter 2) from the Lab forward port to the Node-2 portside CBM (Common Berthing Mechanism), CDR Whitson depressurized PMA-2, evacuating any atmospheric residuals to vacuum and afterwards monitoring the internal state.
Also for the PMA-2 move, FE-2 Dan Tani unlatched the Node-2 forward hatch to its hardstop to test the mechanism (hatch remaining safely closed due to pressure differential) and then installed the CBCS (Centerline Berthing Camera System), with its cabling through the Node-1/Node-2 hatchway, at the Node-2 port where PMA-2 will be berthed.
The crew conducted the standard pre-Robotics review of SSRMS (Space Station Remote Manipulator System) procedure using the DOUG (Dynamic Orbital Ubiquitous Graphics) software application.
Tani performed the periodic deployment of two passive FMK (formaldehyde monitoring kit) sampling assemblies in the Lab (below CEVIS) and SM (most forward handrail) for two days, to catch any atmospheric formaldehyde on a collector substrate for subsequent analysis on the ground.
The FE-2 and CDR had their weekly PFCs (Private Family Conferences) via S-band/audio and Ku-band/MS-NetMeeting application (which displays the uplinked ground video on the SSC-8 laptop), Dan at ~9:30am EST, Peggy at ~10:45am.
The crewmembers completed their regular 2.5-hr. physical workout program (about half of which is used for setup & post-exercise personal hygiene) on the CEVIS cycle ergometer (CDR), TVIS treadmill (FE-1, FE-2), RED resistive exercise device (CDR, FE-2), and VELO bike with bungee cord load trainer (FE-1).
No CEO (Crew Earth Observation) photo targets uplinked for today.