ISS HAM pass: The crew participated in a HAM pass with Kyoto Tachibana Junior and Senior High Schools in Japan. Some of the questions involved how the ISS avoids other orbiting satellites, what Earth looks like when it’s night in Japan, and many others. ISS Ham Radio provides opportunities to engage and educate students, teachers, parents and other members of the community in science, technology, engineering and math by providing a means to communicate between astronauts and the ground HAM radio units.

NanoRacks Emulsion Tube: In this experiment, the crew demonstrated the mixing properties of two liquids contained inside the Emulsion Tube. The experiment allows the liquids to be easily separated, then shaken to create an emulsion which can be observed. NanoRacks-Emulsion Tube demonstrates phenomena of the separation of immiscible fluids, or fluids such as oil and water that cannot be mixed or blended. On Earth, buoyancy is the dominant force driving the separation of oil and water into uniform volumes, but in microgravity, surface tension and polarity differences dominate and slow the separation. Analyzing differences between the mixture in Earth’s gravity and microgravity provides insight into fluid physics.

Rodent Research-17: The crew restocked the habitats and cleaned the units. Rodent Research-17 uses young and old mice as model organisms to evaluate the physiological, cellular and molecular effects of the spaceflight environment. Some responses to spaceflight in humans and model organisms such as mice resemble accelerated aging. This investigation provides a better understanding of aging-related immune, bone, and muscle disease processes, which may lead to new therapies for use in space and on Earth.

Spacecraft Atmosphere Monitor (SCRAM): The crew installed SCRAM in the EXPRESS Rack 8 and powered up the payload to begin a 24 hour checkout prior to starting nominal ops. The investigation demonstrates the capabilities of a small, reliable, portable gas chromatograph mass spectrometer instrument aboard the ISS to conduct major and minor elements of air measurement (Nitrogen, Oxygen, Carbon Dioxide, Methane, Water, etc). The instrument transmits data back to the ground research team every two seconds, providing a continuous analysis to the ground research team. It has a mass of less than 9.5 kg, and consumes less than 40 watts of power.

Medical Contingency On-Board Training (OBT): The 59S crew reviewed medical emergency procedures and rescuer roles during a medical event requiring CPR. They also reviewed emergency medical hardware configuration as well as crew communication and coordination of care during an emergency medical event.

Extravehicular Mobility Unit (EMU) Swap: The crew unpacked EMU 3009 which is a new unit that arrived on SpX-18. The crew then packed EMU 3003, which will be returned to ground on SpX-18 for refurbishment.

Mobile Servicing System (MSS) Ops: Yesterday Robotics Ground Controllers powered up the MSS to perform troubleshooting for garbled video on Trunk Line MSS 4 to the External Video Switch Unit (EVSU). When they attempted to route the Special Purpose Dexterous Manipulator (SPDM) Body Camera 2 through a downlink the image was scrolling. Following troubleshooting, they translated the Mobile Transporter (MT) from Work Site (WS) 7 to WS6, where they performed planned direct drive data gathering on the Space Station Remote Manipulator System (SSRMS) wrist pitch and wrist yaw joints on the prime string. SSRMS direct drive testing continued today and teams are discussing a forward plan for the video issue.

Completed Task List Activities:

BFF smart pump R&R

Symptom questionnaire

Soldering kit audit

Node 1 Deck 2 stow

PWD filter circuit breaker reset

Ground Activities:

All activities are complete unless otherwise noted.



SSRMS Direct Drive testing

JEMAL depress

Payloads ops support

Look Ahead:

Friday, 8/9 (GMT 221)

Payloads:



Acoustic Diagnostics

BFF

FSL reconfig

Food Acceptability

Ice Cubes R&R

Lighting Effects

MSPR reconfiguration

Repository

SCRAM

SPHERES Zero Robotics dry run and competition

Standard Measures

Systems:

EVA BSA battery ops

EMU LiON battery ops

Saturday, 8/10 (GMT 222)

Payloads:



Lighting Effects

Systems:

Crew off duty; housekeeping

Sunday, 8/11 (GMT 223)

Payloads:



Lighting Effects

Standard Measures setup

Systems:

Crew off duty

Today’s Planned Activities:

All activities are complete unless otherwise noted.

