Synchronized Position Hold, Engage, Reorient, Experimental Satellites (SPHERES) Zero Robotics (ZR): The crew provided support for a SPHERES ZR Challenge competition between students from middle schools in the United States and Russia. As part of a competition, students write algorithms for the SPHERES satellites to accomplish tasks relevant to future space missions. The algorithms were tested by the SPHERES team and the best designs were selected for the competition today to operate the SPHERES satellites on board the ISS. Space Headaches: The 51 Soyuz (51S) USOS crewmembers completed weekly questionnaires for the ESA Space Headaches investigation. The Space Headaches investigation collects information that may help in the development of methods to alleviate associated symptoms and improvement in the well-being and performance of crewmembers in space. Headaches during space flight can negatively affect mental and physical capacities of crewmembers that can influence performance during a space mission. Rodent Research-5 (RR-5) Systemic Therapy of NELL-1 for Osteoporosis: The Crew performed a final inventory audit for RR-5 and stowed or trashed applicable RR-5 items. Mobile Servicing System (MSS) Operations: Last evening, Robotics Ground Controllers powered up the MSS and walked the Space Station Remote Manipulator System (SSRMS) off Mobile Base System (MBS) Power Data Grapple Fixture 1 (PDGF1) and onto the Node2 PDGF. They then maneuvered the SSRMS into position and powered up the MSS in the Hot Backup Configuration in preparation for today’s SpaceX-12 Offset Grapples Practice. Finally the ROBOs translated the Mobile Transporter (MT) from Worksite 3 (WS3) to WS4. On-Board Training (OBT) Dragon Offset Grapple: In preparation for SpaceX-12 capture scheduled for August 16, the crew practiced Space Station Remote Manipulator System (SSRMS) grapple approaches. They maneuvered the SSRMS over the pin and practiced pulling the trigger once they were in the grapple envelope. During the session the crew paid particular attention on how to best manage the volumetric constraints in the Cupola as well as how lighting conditions vary inside. Remote Power Controller Module (RPCM) P12B_B Status: Ground teams successfully reclosed Remote Power Controller (RPC) 10 of RPCM P12B_B and the RPC remains closed as of this writing. The RPC originally tripped on Wednesday and the trip signature indicates a Field Effect Transistor (FET) Hybrid failure. This RPC powers the S-Band transponder for String 2 and is an external RPCM that can be removed and Replaced (R&R) by the Special Purpose Dexterous Manipulator (SPDM). Planning is underway to perform this R&R no earlier than August 18th. Command and Control (C&C)-3 Multiplexer/Demultiplexer (MDM) Transition: The primary C&C-3 MDM unexpectedly transitioned to Diagnostics mode. C&C-1 successfully transitioned to Primary with C&C-2 as the Backup. C&C-3 has been power-cycled and restarted nominally with no health flags. During the transition to C&C-1, there was a 40 minute loss of Ku-band including Space to Ground 3 and 4 as well as real-time payload science data downlink. Today’s Planned Activities All activities were completed unless otherwise noted. Video recording for KOROLYOV TV channel INTERACTION-2. Experiment Ops Test video recording for RT channel Preparation of Reports for Roscosmos web site and social media URAGAN. Observation and Photography ECON-M. Observation and photography CMS Max CEVIS with PPFS Power Up Combustion Integrated Rack Alignment Guide Install MOBIPV SOFTWARE INSTALLATION Max Cycle Ergometer w/Vibration Isolation & Stabilization (CEVIS) Portable PFS Subject Water Recovery System Waste Water Tank Drain Init Handover of Increment 52 Crew Study of cardiovascular system under graded physical CYCLE load Assist in study of cardiovascular system under graded physical CYCLE load Water Recovery System Waste Water Tank Drain Termination On-board Training (OBT) Dragon Offset Grapple Preparation for pressurized Orlan suits transfer from DC1 to ПхО Training PIM Locker Insert Remove Transfer of two Pressurized Orlan Suits to ПхО. Evaluation of working with a cone cover in ПхО. UPA Brine Filter Gather UPA Brine Filter Changeout Long Duration Sorbent Testbed Status Check. On-board Training (OBT) Dragon Offset Grapple Configuring ПхО to initial state after pressurized Orlan suits transfer training Onboard Training (OBT) SSRMS Debrief Conference Specific EVA Procedures Study Max Cycle Ergometer w/Vibration Isolation & Stabilization (CEVIS) Portable PFS Partial Stow Double Coldbag Cleanup and Prep SPHERES Zero Robotics Setup and Checkout MOBIPV SETUP [Deferred] MOBIPV CHECKOUT [Deferred] Robotic Workstation (RWS) High Definition (HD) Monitor Downlink Rodent Research Inventory Audit SPHERES Zero Robotics Run Installation of USOS EMU Lights, Video Camera, and REBA on Orlan #4 and #6. In Flight Maintenance (IFM) Waste and Hygiene Compartment (WHC) Full Fill MOBIPV TEAR DOWN AND STOWAGE [Deferred] Food Frequency Questionnaire (FFQ) or ISS Food Intake Tracker (ISS FIT) HRM Transmitter Battery Replacement In Flight Maintenance (IFM) Waste and Hygiene Compartment (WHC) Full Fill Light and video camera ORLAN suits verifying ISS Crew Orientation Dose Tracker Data Entry Subject Space Headaches – Weekly Questionnaire SPHERES Zero Robotics Shutdown EXPRESS Rack 6 Locker Removal Robotic Workstation (RWS) High Definition (HD) Monitor Deactivation Space Headaches – Weekly Questionnaire Wastewater Storage Tank Assembly (WSTA) Fill Completed Task List Items Miniature Exercise Device Exercise Evaluation Mouse Habitat Unit Cage Removal WHC KTO Replacement Lab MCA Mass Spectrometer R&R – Part A Ground Activities All activities were completed unless otherwise noted. Dragon Grapple OBT Spheres ZR Run Three-Day Look Ahead: Saturday, 08/12: Crew off duty, housekeeping Sunday, 08/13: Crew off duty Monday, 08/14: Sprint Ultrasound 2, Mouse Habitat, Dragon OBT, ExpressRack Relocation 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 Operate Major Constituent Analyzer (MCA) Lab Idle Major Constituent Analyzer (MCA) Node 3 Operate Oxygen Generation Assembly (OGA) Process Urine Processing Assembly (UPA) Process Trace Contaminant Control System (TCCS) Lab Full up Trace Contaminant Control System (TCCS) Node 3 Off