Rodent Research-7 (RR-7): The crew completed the first of two days of rodent operations for the RR-7 investigation today. Crewmembers performed bone densitometer scans, blood draws, fecal pellet collections, and sampling operations. RR-7 examines how the space environment affects the community of microorganisms in the gastrointestinal tract of mice (also known as the microbiota). It also looks at microgravity’s effects on multiple physiological systems known to be affected by the microbiota, including the gastrointestinal, immune, metabolic, circadian, and sleep systems. These studies should help explain mechanisms underlying interactions between these systems and the role of the microbiota in these interactions.

Exposed Experiment Handrail Attachment Mechanism (ExHAM) #1: Tonight robotic specialists in Tsukuba will use the Japanese Experiment Module Remote Manipulator System (JEMRMS) with the Small Fine Arm (SFA) to transfer the Handhold Experiment Platform (HXP) from the JEM Airlock Slide Table to the JEM Exposed Facility handrail.

Treadmill 2 (T2) Status: This morning, the crew replaced the T2 Station Support Computer (SSC) and the ground team configured it for T2 use. The subsequent rack activation was nominal and T2 is now operational and ‘Go’ for the crew’s use.

Dragon Cargo Ops: Today the crew completed approximately four hours of cargo operations as they continued to pack and load items slated for return on the SpaceX-15 Dragon vehicle. Only a few steps remain in the current Cargo Message and specialists hope to upload the next message tomorrow. An estimated fifteen hours of activities remain to finish loading the vehicle prior to the planned departure date of 3 August.

Today’s Planned Activities:

All activities are complete unless otherwise noted.



Rodent Research Node 2 Camcorder Video Setup

Rodent Research Animal Transfer

Rodent Research Dissection 1A

PK-4 Video Monitor Installation

Verification of ИП-1 Flow Sensor Position

PAO hardware setup in COL. Audi/Video check with Glavny

Rodent Research Bone Densitometer Scan

Crew Prep for PAO

TV Conference with the participants of International Youth Science School in COL

Rodent Research Dissection 1B

PK-4 Video Monitor Checkout

SEPARATSIYA. Recovery of [ВН-1] vacuum pump in СРВ-У-РС

PK-4 Gas Connection Check

Rodent Research MELFI Insert 1

Photo T/V (P/TV) Advanced Resistive Exercise Device (ARED) Exercise Video Setup

Rodent Research MELFI Insert

Rodent Research Bone Densitometer Scan

Rodent Research Dissection 1B

Rodent Research MELFI Insert 1

Photo T/V (P/TV) Advanced Resistive Exercise Device (ARED) Exercise Video Stow

Replacement of storage battery 800А module No.2 (A102), No.4 (A104).

Rodent Research MELFI Insert

Rodent Research Bone Densitometer Scan

Rodent Research Dissection 1B

Telescience Resource Kit Laptop Setup

SM Internal Wireless Instrumentation System (IWIS) Remote Sensing Unit (RSU) s/n 1027 antenna/power chain check and power cycle

Polar Desiccant Swap

File retrieval of the Sample 8 Re-Run

Rodent Research Centrifuge Setup

Rodent Research Centrifuge Configure

Rodent Research Hand Over

Rodent Research MELFI Insert

HRF Centrifuge Spin Conclude

Rodent Research Dissection 2A

Rodent Research Bone Densitometer Scan

Troubleshooting EVA Support Panel ПОВ-2 failure to deactivate in DC1 when pressing OFF/ОТКЛ key.

Rodent Research Dissection 2B

Polar Desiccant Swap

Plant Habitat-01 Glacier to MELFI Sample Transfer #3

СТТС Configuration for MRM1

Cleaning fan screens on FGB interior panels 116, 231, 316, 431.

SEPARATSIYA. Distillation in auto (manual) mode.

Rodent Research MELFI Insert

Rodent Research Bone Densitometer Scan

Rodent Research Animal Transfer 2

Rodent Research MELFI Insert

Rodent Research Dissection 2B

Comm reconfig for nominal ops

INTERACTION-2. Experiment Ops

Rodent Research MELFI Insert

Rodent Research Centrifuge Configure

HRF Centrifuge Spin Conclude Final

Rodent Research MELFI Insert 3

Completed Task List Activities:

STCE-2 CTB Audit

Ground Activities:

All activities are complete unless otherwise noted.



Lab MCA Zero Calibration

Amine Swingbed Startup

Lab CDRA Half Cycle time change to 144 min

SSRMS: EarthKAM clearance maneuver

JEMRMS: ExHAM#1 transfer from JEM AL to JEF

Three-Day Look Ahead: