NASA Space Station On-Orbit Status 20 October 2017 – Spacewalk Completed

Expedition 53 Commander Randy Bresnik and Flight Engineer Joe Acaba of NASA completed a 6 hour, 49 minute spacewalk at 2:36 p.m. EDT. The two astronauts installed a new camera system on the Canadarm2 robotic arm’s latching end effector, an HD camera on the starboard truss of the station and replaced a fuse on the Dextre robotic arm extension.
The duo worked quickly and were able to complete several “get ahead” tasks. Acaba greased the new end effector on the robotic arm. Bresnik installed a new radiator grapple bar. Bresnik completed prep work for one of two spare pump modules on separate stowage platforms to enable easier access for potential robotic replacement tasks in the future. He nearly finished prep work on the second, but that work will be completed by future spacewalkers.

This was the fifth spacewalk of Bresnik’s career (32 hours total spacewalking) and the third for Acaba (19 hours and 46 minutes total spacewalking). Space station crew members have conducted 205 spacewalks in support of assembly and maintenance of the orbiting laboratory. Spacewalkers have now spent a total of 53 days, 6 hours and 25 minutes
working outside the station.

On-Orbit Status Report

USOS Extra Vehicular Activity (EVA) #46: Randy Bresnik (as EV1) and Joe Acaba (as EV2) successfully performed US EVA #46 with a Phased Elapsed Time (PET) of 6 hrs 49 min. The primary goals of the EVA were to Remove and Replace (R&R) a fuse in the Special Purpose Dexterous Manipulator (SPDM) Enhanced ORU Temporary Platform (EOTP), install an External High Definition Camera (EHDC) at the Camera Port 3 (CP3) location, and install a new Camera/Light Assembly (CLA) on the Space Station Remote Manipulator System (SSRMS) Latching End Effector A (LEE A). The crew also removed Multi-Layer Insulation (MLI) from an Main Bus Switching Unit (MBSU) and tied down an MLI Skirt on a spare Direct Current Switching Unit (DCSU). The crew also performed the following get ahead tasks: Lubrication of the LEE A Linear Bearings, Prep of two Pump Modules (PMs) by removing the MLI straps and tape used for launch loads, and T-Handle installation on the Port Radiator Grapple Bar (RGB).

Circadian Rhythms: The 51S crewmember removed and stowed the Double Sensors and Thermolab Unit equipment that was used to complete a 36 hour Circadian Rhythms session that began on Wednesday. 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 for future crewmembers.

Space Headaches: Today a 51S crewmember completed a weekly questionnaire 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.

Today’s Planned Activities
All activities were completed unless otherwise noted.

Life On The Station Photo and Video
Glisser GoPro HERO3 battery charge
Roskosmos and social media features preparation
URAGAN. Observation and photography
ECON-M. Observation and photography
Extravehicular Activity (EVA) Reminder for EVA In-Suit Light Exercise (ISLE) Preparation
ISS HAM Radio Power Down in Columbus
USOS Extravehicular Activity (EVA) Communication Configuration
ISS HAM Radio Power Down in Service Module
EVA COTS UHF Communication Unit (CUCU) Verify off
USOS Window Shutter Close
Extravehicular Activity (EVA) In-Suit Light Exercise (ISLE) Preparation
Daily Planning Conference
MORNING PREPARATION WORK
PAO hardware setup. Audi/Video check with Glavny (Ku + S-band)
Crew Prep for PAO
Circadian Rhythms Deinstrumentation
TV Conference with the participants of XXV International Space Olympiad (Ku + S-band)
MICROVIR. Photography of Cassette-M No.3-3, No.3-4 upper cells. Squeezing out and photography of bottom cells. Tagup with specialists as necessary
Extravehicular Mobility Unit (EMU) Purge
MICROVIR. Glovebox-S Closeout Ops
Extravehicular Mobility Unit (EMU) In-Suit Light Exercise (ISLE) Prebreathe
Monitoring shutter closure on SM windows 6, 8, 9, 12, 13, 14. Note 5
COSMOCARD. Setup. Starting 24-hr ECG Recording
COSMOCARD. Photography of the Experiment Session
Portable Onboard Computers (POC) Dynamic Onboard Ubiquitous Graphics (DOUG) Setup
Extra-Vehicular Mobility Unit (EMU) In-Suit Light Exercise Prebreathe
BIOPLENKA. Removal of Cryogem-03 after Completion of the Experiment
MICROVIR. Photography of bottom cells
Crewlock Depress
Tightening Fast-Removal Screw Clamps on SM Aft – Progress 436 Interface
Photography of Plume Impingement and Deposit Monitoring Unit (????) position on MRM2 through SM window No.13, preparation
Crewlock Post Depress
Crewlock Egress
Photography of Plume Impingement and Deposit Monitoring Unit (????) position on MRM2 through SM window No.13
Photography of Plume Impingement and Deposit Monitoring Unit (????) position on MRM2 through SM window No.13, Closeout Ops
Enhanced ORU Temporary Platform (EOTP) Fuse R&R
SSRMS EVA Support
SSRMS Setup for C9 Ops
SSRMS EVA Support
CP3 External High Definition Camera (EHDC) Install
Main Bus Switching Unit (MBSU) Multi-Layer Insulation (MLI) Remove
Draining Disinfectant into ??? and SM Rodnik Water Tank 1 bladder compression
MICROVIR. Photography of bottom cells
Progress 437(DC1) priority and US cargo items transfers and IMS Ops
Direct Current Switching Unit (DCSU) Skirt Tie down
SSRMS Cleanup
Camera Light Assembly (CLA) R&R
??? maintenance
IMS Update
SSRMS Powerup
SM ??1-4 Dust Collector Filter Cartridge Changeout (???1???_2_224_1, bag 436-26 (00071452R)). Discard the removed items. Reflect changes in IMS)
MICROVIR. Photography of bottom cells
Articulating Portable Foot Restraint (APFR) Cleanup
Crewlock Ingress
Evening Preparation Work
EVA Glove Photo Setup
Crewlock Pre Repress
Crewlock Repress
Extra Vehicular Activity (EVA) Post-EVA Activities
MICROVIR. Photography of bottom cells
Cupola Window Shutter 4 Close
Space Headaches – Weekly Questionnaire
Post Extravehicular Activity (EVA) Communication Deconfiguration
SM Water Tank 1 Bladder Compression, Cleanup Ops
EVA Glove Photo Downlink
Extravehicular Activity (EVA) Camera Image Downlink
Photo/TV Extravehicular Activity (EVA) GoPro Downlink

Completed Task List Activities
Wanted Poster: (20-100 in-oz) Trq Driver, 1/4 Drive
ECG Device, ECG Lead Set Cable, and ECG USB Charge Cable Audit

Ground Activities
All activities were completed unless otherwise noted.
SSRMS Powerup
EVA Support

Three-Day Look Ahead:
Saturday, 10/21: EMU Water Charge, EVA Debrief, Airlock Reconfig
Sunday, 10/22: Off duty
Monday, 10/23: KE2M Installation on JEMAL Slide Table, World in 90 Minutes Photography, ENERGY, CQ Battery Replacement

QUICK ISS Status – Environmental Control Group:
Component – Status
Elektron – On
Vozdukh – Manual
[???] 1 – SM Air Conditioner System (“SKV1”) – Off
[???] 2 – SM Air Conditioner System (“SKV2”) – Off
Carbon Dioxide Removal Assembly (CDRA) Lab – Standby
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 – Full Up
Trace Contaminant Control System (TCCS) Node 3 – Off