Mouse Epigenetics Cage Unit Maintenance: The crew completed standard maintenance activities for the Mouse Epigenetics experiment by refilling the Transportation Cage Units with water and checking the water nozzles of the individual cages. The Mouse Epigenetics investigation studies altered gene expression patterns in the organs of male mice that spend one month in space, and also examines changes in the deoxyribonucleic acid (DNA) of their offspring. Results from the investigation identify genetic alterations that happen after exposure to the microgravity environment of space. Extravehicular Activity (EVA) Preparations: The crew spent most of the day preparing for tomorrow’s EVA, completing the following: Configured/audited tools and prepared the Equipment Lock (EL), Extravehicular Mobility Units (EMUs) and ancillary hardware. Removed/relocated stowage from the Node 2 forward port endcone to access the forward International Docking Adapter (IDA) control panel. Set up the IDA control panel and 2 multimeters for the Modified Androgynous Peripheral Attachment System (MAPAS) installation. Copied EMU/Airlock contingency procedures to their iPads in the event the Station Support Computer (SSC) goes down. Pre-EVA health check. Pre-EVA conference with ground teams. International Docking Adapter (IDA): Ground controllers used the Space Station Remote Manipulator System (SSRMS) to inspect the sealing surface of IDA2, and then successfully extracted the IDA from the Dragon trunk overnight. There was a delay in the removal when a tethered pyro bolt from the Latch B Flight Support Equipment (FSE) floated very close to the IDA handrail. A video inspection of the handrail confirmed that the tether was not looped around or through the handrail. The ground team continued with the IDA extraction but the FSE bolt interfered with the bottom of the handrail and the IDA structure. The FSE bolt was freed after a sequence of adjustments with the Special Purpose Dexterous Manipulator (SPDM) robotic arm. The adjustments were very minor and positive margin between the IDA and Dragon were verified prior to each adjustments. The IDA was maneuvered to position for the installation on Pressurized Mating Adapter (PMA) 2 during the spacewalk tomorrow morning. MERLIN-1 False Fire Indication: MERLIN-1 was unpowered following a false fire indication. Crew members took Compound Specific Analyzer- Combustion Products (CSA-CP) readings which were all zero. Ground teams are investigating the cause. No loss of science was incurred, as MERLIN-1 is located in the Node 1 Galley area and is used primarily for crew preference items. Today’s Planned Activities All activities were completed unless otherwise noted. ISS crew and ГОГУ (RSA Flight Control Management Team) weekly conference r/g 3090 FAGEN. Photography during fixation of samples / r/g 3118 FAGEN. Fixation of samples from MCK No.4 and setup in SM r/g 3117 CARDIOVECTOR. Experiment Ops r/g 3115 MOUSE Hardware Setup ABOUT GAGARIN FROM SPACE. HAM Radio Session Leaders Club / r/g 3114 Pre-EVA Crew Health Status – Prep Pre-EVA Crew Health Status – CMO Pre-EVA Crew Health Status – Subject Pille Sensors setup for USOS EVA / r/g 3120 CARDIOVECTOR. Photography of the Experiment Ops / r/g 3116 UDOD. Experiment Ops with DYKNANIYE-1 and SPRUT-2 Sets r/g 3119 Collecting surface samples from SM equipment and structures / r/g 3084 PHS hardware stow (Periodic Health Status) ABOUT GAGARIN FROM SPACE. HAM Radio Session Leaders Club / r/g 3114 XF305 Camcorder Settings Adjustment Mouse Epigenetics, Transportation Cage Unit, Troubleshooting, Part 1 Kulonovskiy Kristall Experiment Run. Tagup with specialists / r/g 3123 EVA Tool Config KULONOVSKIY KRISTALL. Copy and Downlink Data / r/g 3123 EVA Procedure Review On MCC Go Installation of a new upgraded СЗУ-ЦУ8 device at FGB БР-9ЦУ-8 system ЗУ1А operation site r/g 3095 Equipment Lock Preparation USOS EVA Tool Audit Final printout of EVA procedures EVA Procedure Conference On MCC Go: Replacement of ЗУ1Б ЭА025М device with the upgraded FGB БР-9ЦУ-8 device r/g 3095 Collecting surface samples from SM equipment and structures / r/g 3084 US EVA, NODE2 Ops in Preparation for International Docking Adapter (IDA) Installation OTKLIK. Hardware Monitoring / r/g 1588 СОЖ Maintenance Private medical conference before EVA from USOS Replacement of CO2 Filter Unit ИК0501 ISS-HAM Radio Session On-orbit hearing assessment using EARQ Progress 432 [OA] Stowage Ops with IMS Support / r/g 3122 CUCU EVA Inhibits Countermeasures System (CMS), Sprint Exercise, Optional Multimeter and Camcorder Setup in N2 in preparation for IDA Installation Physical Fitness Evaluation (on the treadmill) r/g 3100 IDENTIFICATION. Copy ИМУ-Ц micro-accelerometer data to laptop / r/g 1589 INTERACTION-2. Experiment Ops / r/g 3113 ISS HAM RADIO Power Down Private medical conference before EVA from USOS On-orbit hearing assessment using EARQ Completed Task List Items None Ground Activities All activities were completed unless otherwise noted. EVA procedures review IDA multimeter startup Nominal ground commanding Three-Day Look Ahead: Friday, 08/19: IDA2 EVA Saturday, 08/20: Post EVA cleanup activities, EVA debrief, Heart Cells media change, Mouse cage maintenance, CMO OBT Sunday, 08/21: Crew off duty QUICK ISS Status – Environmental Control Group: Component Status Elektron On Vozdukh Manual [СКВ] 1 – SM Air Conditioner System (“SKV1”) On [СКВ] 2 – SM Air Conditioner System (“SKV2”) Off Carbon Dioxide Removal Assembly (CDRA) Lab Operate Carbon Dioxide Removal Assembly (CDRA) Node 3 Operate Major Constituent Analyzer (MCA) Lab Idle Major Constituent Analyzer (MCA) Node 3 Operate 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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