ISS Daily Summary
Report – 08/26/15
Posted on August 26,
2015 at 4:52 pm by cosbourn.
Human Research
Program (HRP) Operations:
- Lindgren and Yui initiated their Flight Day 30 (FD30) Ocular Health performing vision tests, tonometry, blood pressure measurements, and answering a vision questionnaire. The Ocular Health protocol calls for a systematic gathering of physiological data to characterize the risk of microgravity-induced visual impairment/intracranial pressure in ISS crewmembers. Researchers believe that the measurement of visual, vascular and central nervous system changes over the course of this experiment and during the subsequent post-flight recovery will assist in the development of countermeasures, clinical monitoring strategies, and clinical practice guidelines.
- Kelly participated in Interactions-2 which is a
Russian experiment in which both 1-Year mission crewmembers are
participating. The goal of the investigation is to study the
patterns of intra- and inter-group (interaction with Mission Control
Center (MCC)) dynamics during the long-term spaceflight of an
international crew.
- Kelly and Kornienko performed their morning
Reaction Self-Test and will perform another session prior to sleep.
This week-long session is in advance of the sleep shift required for the
42 Soyuz relocation later this week. Reaction Self-Test aids
crewmembers to objectively identify when their performance capability is
degraded by various fatigue-related conditions that can occur as a result
of ISS operations and time in space (e.g., acute and chronic sleep restriction,
slam shifts, extravehicular activity (EVA), and residual sedation from
sleep medications).
- Kelly and Kornienko are performing a week of
sleep logging. The Sleep ISS-12 experiment monitors ambient light
exposure and crew member activity and collects subjective evaluations of
sleep and alertness to examine the effects of space flight and ambient
light exposure on sleep during a year-long mission on the ISS.
Plant
Rotation: Yui removed samples from the Cell Biology Experiment
Facility (CBEF) following the completion of the Plant Rotation Run 4
session. He took photos of the Plant Rotation Chamber and downlinked for
ground evaluation. Many species of climbing plants grow upward in a
spiraling shape, a process known as circumnutation. Plant organs, such as
stems, leaves, and roots also grow in a spiraling, helical shape. This
spiraling process can take many forms, including very tight loops and broad
curves. The Plant Rotation experiment verifies the hypothesis that this type of
plant growth requires gravity.
Circadian Rhythms: Lindgren
concluded his 36-hour Circadian Rhythms measurement, doffing the Thermolab
sensors and instrumentation belt and answering a short questionnaire about
caffeine intake. Circadian Rhythms investigates the role of synchronized
circadian rhythms, or the “biological clock,” and how it changes during
long-duration spaceflight. Researchers hypothesize that a non-24-hour cycle of
light and dark affects crewmembers’ circadian clocks. The investigation also
addresses the effects of reduced physical activity, microgravity and an
artificially controlled environment. Changes in body composition and body
temperature, which also occur in microgravity, can affect crewmembers’
circadian rhythms as well. Understanding how these phenomena affect the
biological clock will improve performance and health of future crewmembers.
Mycological
Evaluation of Crew Exposure to ISS Ambient Air (MYCO): Upon
wakeup, Kelly performed the MYCO sampling, collecting nasal cavity, pharynx,
saliva and skin samples. MYCO evaluates the risk of inhaling microorganisms and
their adhesion to the skin to determine which fungi act as allergens on the
ISS. Analysis focuses on microflora, particularly fungi sampled from
subjects, which may cause opportunistic infections and allergies if their
immunity is compromised on the ISS.
Mobile Servicing
System (MSS) Operations: Overnight Robotics Ground Controllers
maneuvered the Space Station Remote Manipulator System (SSRMS) to position
Special Purpose Dexterous Manipulator (SPDM) Arm 2 to open H-II Transfer
Vehicle (HTV) Exposed Facility Unit 1 (HEFU1) and HEFU2 on the HTV5 External
Platform (EP). During the first attempt to grasp the HEFU1 Micro-Square
Fixture (MSF), Orbit Replaceable Unit (ORU) Tool Changeout Mechanism 2 (OTCM2)
hung up on the MSF. Robotics Ground Controllers were able to free OTCM2
and back SPDM Arm 2 away. The next attempt to grasp the HEFU1 was
successful and HEFU1 was opened. OTCM2 then released the HEFU1 MF and the
SSRMS and the SDPM were maneuvered to a park position. HEFU2 will be
opened on August 29 as part of the Superconducting sub-Millimeter-wave
Limb-Emission Sounder (SMILES) transfer operations.
42S Relocation From
Mini Research Module (MRM)2 Zenith to Service Module (SM) Aft Preparation: Earlier
today the 42S Thruster Test was successfully completed. Kelly
completed Systems Operations Data File (SODF) deploy to replace emergency books
and cue cards. He stowed discarded books and cards for return on a future
SpaceX flight. The 42S crew performed On-Board Training (OBT) to prepare for
42S redock.
HTV5 Cargo Transfer
Status: Lindgren and Yui completed 4 hours of HTV-5
Cargo transfer operations today. A total of 36 hours remain to complete
HTV-5 cargo operations
Today’s Planned Activities
All activities were completed unless otherwise noted.
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