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 |