Bone Densitometer (BD) Imaging On-orbit Replacement Unit (ORU) Remove and Replace (R&R): Following a failed checkout of the BD, ground controllers determined that the Imaging Unit had failed. Cristoforetti R&R’ed the unit today in advance of Rodent Research sample collections next Monday. Ground controllers successfully calibrated the unit and are ready to proceed with Rodent Research operations on Monday. Per experiment requirements, ground controllers will perform another calibration within 24 hours of operation. Binary Colloidal Alloy Test-Low Gravity Phase Kinetics Platform (BCAT-KP) Sample Initiation: Cristoforetti transferred images taken from Sample #5, reset the intervelometer, and initialized Sample #3 for a three week session run. Following this sample, two more samples are planned before all the BCAT-KP samples are initialized and stowed for approximately 6 months while the colloids are left undisturbed to allow for continued growth. The BCAT-KP experiment aims to help materials scientists develop new consumer products with unique properties and longer shelf lives. Colloids are mixtures of small particles distributed throughout a liquid, which include milk, detergents and liquid crystals. Gravity affects how the particles clump together and sink, making the International Space Station an ideal platform to study their fundamental behaviors. Cell Mechanosensing-3 Thermal Container Reconfiguration: Virts configured the Thermal Container to the Microscope in the Multi-Purpose Small Payload Rack (MSPR) for the Cell Mechanosensing-3 experiment, scheduled for delivery on SpaceX-7. Ground controllers received off-nominal health and status from the Microscope and Thermal containers and are investigating the cause prior to proceeding with the checkout. The investigation identifies gravity sensors in skeletal muscle cells to develop countermeasures to muscle atrophy, a key space health issue. Scientists believe that the lack of mechanical stress from gravity causes tension fluctuations in the plasma membrane of skeletal muscle cells, which changes the expression of key proteins and genes, and allows muscles to atrophy. Muscle cells from rats, and kidney cells from African clawed frogs are tagged with fluorescent gene markers, and attached to an extracellular matrix to study their performance under different tensions, simulating use on earth. Node 3 (N3) Carbon Dioxide Removal Assembly Bed Remove & Replace (R&R): Today Virts and Kelly completed CDRA reassembly and installed CDRA back into the rack. Tomorrow the crew will complete the maintenance by reconnecting the power/data and fluid lines. Acoustic Dosimeters: Kelly retrieved 3 acoustic dosimeters that were deployed in various locations throughout the ISS. He downloaded the data for review by ground teams and stowed the dosimeters. Mobile Servicing System (MSS) Operations: Today, the Robotics Ground Controllers powered up the MSS and reconfigured the Space Station Remote Manipulator System (SSRMS) and the Special Purpose Dexterous Manipulator (SPDM) for translation. Next they translated the Mobile Transporter (MT) from Worksite 2 (WS2) to WS4. Finally the Robotics Ground Controllers maneuvered the SSRMS/SPDM to a park position. Today’s Planned Activities All activities were completed unless otherwise noted. HRF Urine Sample Collection HRF – Sample Collection and Prep for Stowage HRF – Sample MELFI Insertion COSMOCARD. Closeout Ops. r/g 8731 Video camera GoPro HERO3 Setup and Adjustment for Operation during ТК 715 Descent ABOUT GAGARIN FROM SPACE. r/g 8744 Acoustic Dosimeter Stow HRF – Sample MELFI Insertion SM Ventilation System Preventive Maintenance. Group В2 r/g 8393 Measuring air flow speeds on 800А using anemometer. r/g 8669 WRM Condensate Pumping Start Charging GoPro HERO3 Camcorder Battery – start Crew Departure Prep WRM Condensate Pumping Terminate HRF Urine Sample Collection HRF – Sample MELFI Insertion CDRA Component Replacement IDENTIFIKATSIYA r/g 8732 Crew Medical Officer (CMO) – Computer Based Training (OBT) Physical Fitness Evaluation (on treadmill) r/g 8728 Applying Ultrasound gel to Bluetooth HRM electrodes to assist in acquiring better heart rate data Dust Filter Changeout r/g 8393 BCAT-D2XS – Battery Charge Initiation Charging GoPro HERO3 Camcorder Battery – end ESA Weekly Crew Conference Life On The Station Photo and Video / r/g 8544 CDRA – NODE 3 CDRA Chassis Removal Changeout of СРВ-К2М purification column assembly (БКО) / r/g 8751 Stowage of Camcorder for Advanced Resistive Exercise Device (ARED) Exercise Video Dragon Transfer Ops RS Lights Audit (SM, MRM1, MRM2, DC1) / r/g 8737 BRI Log Dump from RSS1 HRF Urine Sample Collection Post-IFM CDRA Hardware Stowage HRF – Sample MELFI Insertion OTKLIK. Hardware Check / r/g 8408 Replacement of ИК0501 Gas Analyzer СО2 Filter Units r/g 8729 MRLN2 – MERLIN Preparation for SpX-6 Descent VIBROLAB. Copy and Downlink Data / r/g 8739 Dragon Cargo Operations Conference IMS Delta File Prep Bone Densitometer Troubleshooting Part 2 Photography of Plume Impingement and Deposit Monitoring Unit Position on MRM2 r/g 8748 BCAT – Transfer of images from the camera BCAT – Sample Initialization FMK Deployment Ops Grab Sample Container (GSC) Sampling Operations THERM – Container Reconfiguration Completed Task List Items ESA PAO Event Ground Activities All activities were completed unless otherwise noted. MT Translation BCAT ops SSRMS maneuver to park position Three-Day Look Ahead: Friday, 05/08: Rodents Research, TripleLux A, Dragon transfer ops, OBT CMO training, CDRA maintenance closeout Saturday, 05/09: Crew off duty, housekeeping, Twin Studies saliva collection Sunday, 05/10: Crew off duty, Space Aging, Bone Densitometer startup/calibration 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 Operate Carbon Dioxide Removal Assembly (CDRA) Node 3 Standby Major Constituent Analyzer (MCA) Lab Shutdown Major Constituent Analyzer (MCA) Node 3 Shutdown Oxygen Generation Assembly (OGA) Process Urine Processing Assembly (UPA) Standby Trace Contaminant Control System (TCCS) Lab Off Trace Contaminant Control System (TCCS) Node 3 Full Up
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