NASA International Space Station On-Orbit Status 4 February 2016

Astronauts Tim Kopra (foreground) and Scott Kelly work on the Carbon Dioxide Removal Assembly inside the Tranquility module. Credit NASA.

Two cosmonauts are cleaning up today after a successful spacewalk on Wednesday. The other crew members are working on life support gear and taking out the trash.

Flight Engineers Yuri Malenchenko and Sergey Volkov completed the third spacewalk of Expedition 46 after installing hardware and science gear and conducting experiments. Today the duo are cleaning and recharging their Orlan spacesuits and stowing their tools.

British astronaut Tim Peake helped Malenchenko and Volkov as he stowed the U.S. gear used on the suits. Peake later videotaped himself reading a children's storybook and performing science demonstrations for students.

Commander Scott Kelly and NASA astronaut Tim Kopra partnered together to swap parts inside the Carbon Dioxide Removal Assembly (CDRA). Kelly then packed trash inside the Orbital ATK Cygnus cargo craft due to leave the International Space Station on Feb. 19. Kopra later wrapped up the CDRA maintenance work.

On-Orbit Status Report

Node 3 Carbon Dioxide Removal Assembly (CDRA) Repair: Kelly and Kopra replaced the Fan Motor Controller (FMC) on the Node 3 CDRA which had failed on January 19th. In addition to the FMC change out, the crew took advantage of the CDRA configuration and also replaced a faulty Secondary Heater Controller, an Air Selector Valve 104, and cleaned the Node 3 Avionic Rack Air Assembly. Following the repair, ground controllers successfully reactivated the unit.

Habitability: Today Kopra recorded a narrated task video of his activities to remove and replace the Node 3 Carbon Dioxide Removal Assembly (CDRA) Heater Controller, Motor Controller and CO2 Selector Valve. He captured details such as hardware and tool interface issues, volume needed to perform the task, or other human factors concerns for task performance. The Habitability investigation results will be used to assess the relationship between crew members and their environment in order to better prepare for future long-duration spaceflights to destinations, such as near earth asteroids and Mars. Observations recorded during 6 month and 1 year missions can help spacecraft designers determine how much habitable volume is required, and whether a mission's duration impacts how much space crew members need.

ExtraVehicular Activity (EVA) Tool Stow: Peake received USOS tools from Volkov that were used as part of yesterday's Russian Segment EVA. Once the tools were transferred, he stowed the items within the US Airlock. Among the items transferred were Tethers, Radio Frequency Camera Assemblies, Helmet Interchangeable Portable Lights, and Rechargeable EVA Battery Assemblies.

Potable Water Dispenser Sample Analysis: Peake visually analyzed water samples within Coliform Detection Bags and Microbial Capture Devices (MCDs) after 48 hours of incubation. The samples had been obtained from the USOS and RS water dispensers on Tuesday. The samples will be returning to the ground by way of Soyuz 44 next month.

Special Purpose Dexterous Manipulator (SPDM) Main Bus Switching Unit (MBSU) Demonstration: Ground controllers began 3 days of activities designed to validate robotic transfer of battery style Orbital Replacement Units (ORUs) prior to the delivery of new ISS batteries on HTV-6. A successful demonstration will allow planners to reduce the number of EVAs to install the batteries. This afternoon, controllers are using the SPDM to move the spare MBSU Flight Releasable Attachment Mechanism (FRAM) from Express Logistics Carrier (ELC)-2 to the Enhanced ORU Temporary Platform (EOTP) on SPDM. Controllers will then use the Right-hand Off-Set Tool (ROST) to unfasten the MBSU secondary bolt.

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

Gathering CDRA Kits
Columbus Stowage Consolidation - Part 3 of 3
EPO - Review Video Demonstration
Photo/TV CDRA Node 3 Video Setup
Carbon Dioxide Removal Assembly (CDRA) Removal
Unstow of EPO and Classroom Videos Demonstrations (CVD) items
MELFI - Retrieval of Ice Bricks
Position JEM Camcorder for a view of CDRA activities
Node1 Camcorder Settings Adjustment
Post-EVA Orlan Debrief With Specialists
EXPOSE-R. Copy and Downlink Data
Deinstall US TV cameras, Lights, and REBA power supply from Orlan No.4 and No.6
HABIT. Overview Video
Handover of US EVA Tools to the USOS after RS EVA 42
Post-EVA Pille Dosimeter Reading
ISS HAM Radio - Radio Power up
Drying Orlan-MK Water Feed Line
Portable Computer System (PCS) Hard Drive (HD) Swap and Image
Orlan Feedwater Bladder Refill
Post-EVA Medical Kits Restow
EVA - RS EVA Tool Stowage
HABIT - Launching the Application
Carbon Dioxide Removal Assembly (CDRA) CO2 Selector Valve (ASV) Remove and Replace
On MCC Go Progress 431
Cygnus Cargo Operations
Orlan-MK Drying - start
HABIT - End Task
Digital Media Setup
DC1 - СУ Hatch Opening
CSA PAO Recording and Downlink (Marrow P/L)
On MCC GO ТКГ-СУ Hatch Opening
Installing Quick-Release Screw Clamps on DC1 side
ТКГ 431 (DC1) deactivation, air duct installation
INTERACTION-2. Experiment Ops / r/g 1316
Environmental Health System (EHS) Microbial Capture Device (MCD) - In-flight Microbiology Water Analysis and GMT Day 33 Data Recording
Orlan-MK Drying (switching to a backup fan)
On-orbit hearing assessment using EARQ
CIR - Post-Experiment Hardware Stowage
СОЖ Maintenance
HAM radio session from Columbus
HABIT - Hardware Setup
Orlan-MK Drying - terminate
BRI log download from RSS1
Setting up Orlan and БСС for storage mode

Completed Task List Items

Ground Activities

All activities were completed unless otherwise noted.
Nominal System Commanding

Three-Day Look Ahead:
Friday, 02/05: Cygnus cargo operations, remove Cyclops from JEM slidetable, CIR stow and bottle replace, EPO classroom videos, PILOT-T, SPDM MBSU Demo
Saturday, 02/06: Weekly Cleaning, Crew Off Duty, SPDM MBSU demo
Sunday, 02/07: Crew off Duty

QUICK ISS Status - Environmental Control Group:

Component - Status
Elektron - Off
Vozdukh - Manual
[СКВ] 1 - SM Air Conditioner System ("SKV1") - Off
[СКВ] 2 - SM Air Conditioner System ("SKV2") - On
Carbon Dioxide Removal Assembly (CDRA) Lab - Fail
Carbon Dioxide Removal Assembly (CDRA) Node 3 - Operate
Major Constituent Analyzer (MCA) Lab - Idle
Major Constituent Analyzer (MCA) Node 3 - Idle
Oxygen Generation Assembly (OGA) - Process
Urine Processing Assembly (UPA) - Shutdown
Trace Contaminant Control System (TCCS) Lab - Full Up
Trace Contaminant Control System (TCCS) Node 3 - Off

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