Mission Diary – 26 January

With three weeks to go before Cygnus departs, Tim Peake and Tim Kopra continued to remove items for stowage aboard the ISS. There is an estimated 22 hours remaining in the job of unpacking the logistics module prior to its re-entry and destruction in the Earth’s atmosphere.

Tim Kopra began preparing the Burning and Suppression of Solids – Milliken (BASS-M) experiment for activation before the end of this week.

Materials burn differently in microgravity than they do on Earth, and understanding these differences is crucial for maintaining safety. The Burning and Suppression of Solids-Milliken (BASS-M) investigation tests flame-retardant cotton fabrics to determine how well they resist burning in microgravity. Results benefit research on flame-retardant textiles that can be used on Earth and in space.

BASS-M consists of 44 textile samples with integrated igniter wires. There are four samples of each textile type, of which there are eleven. A set of control samples are included which provide untreated textile samples. The other ten sets of textile samples share a similar configuration. Each has a small piece untreated textile which is ignited by an integrated hot wire igniter. The flame from the untreated textile impinges on the treated textile which is immediately adjacent to the untreated sample.

The important experimental observations from BASS-M, with respect to the burning process, include flame shape and appearance as a function of flow speed, flame spread rate (how fast the flame develops), and flame dynamics (pulsations, oscillations, etc.). With respect to extinction, the critical observations and data to be collected are the time to extinction as a function of textile material and air flow. The dynamics of the flame before extinction are also important for comparison to the modelling work.

NASA selects materials for use in space based on ground tests of their flammability. But these tests do not consider the effects of microgravity, which changes how materials burn. This investigation conducts space-based burning and flame extinguishment tests on cotton textiles that have been treated with flame retardants. Results provide new knowledge of how low gravity affects a material’s flame-retardant behaviour, improving procedures for testing new materials.

Flame-retardant materials are designed to stop flames from spreading and consuming more material. This investigation provides new information on how low gravity affects a material’s flame retardant material behaviour, which benefits materials science research on Earth.

BASS-M is conducted inside the sealed MSG work volume. The crew member is involved throughout the experiment to load flame retardant textile samples, initiate tests, ignite the untreated textile sample, monitor and record data, exchange textile samples, and replace the memory card in the still camera. Forty-four test samples are burned in a variety of flow conditions for a total of 44 test points.

Data is downlinked via video during, or immediately after, each flame test. Digital photos are downlinked after selected flame tests for ground confirmation before proceeding. BASS-M testing session must be conducted during periods when no major re-boost or docking procedures are underway on the International Space Station.

The crew member installs the BASS hardware in the MSG work volume. The hardware consists of a small flow duct with an igniter and a small nozzle, along with exchangeable textile samples. During BASS operations, a fan produces a co-flow of air through the duct. An anemometer is used to measure the actual flow rate. The crew member adjusts the airflow from 5 to 50 cm/s. The untreated textile is ignited and allowed to impinge on the treated textile until both extinguish, which takes about a minute. A radiometer measures flame output. The crew member conducts each test by installing the correct textile assembly, and setting the correct air flow rate through the duct before igniting the flame.

After the test, the crew member prepares for the next test. The science team on the ground monitors the video downlink to assist the crew member in determining any peculiar flame behaviours, and reviews the sensor data overlaid on the video image. Upon completion of the tests, the crew member stows the hardware, and the stored images and data are returned to Earth for analysis.

ISS Daily Report 26 January

Burning and Suppression of Solids – Milliken (BASS-M) Preparation:  In preparation for BASS-M operations this week, Kopra reconfigured the Microgravity Science Glovebox (MSG) Facility and installed Smoke Point In Co-flow Experiment (SPICE) hardware into the MSG work volume. He will perform the BASS-M ignitor test tomorrow, prior to BASS-M sample testing. The BASS-M investigation tests flame-retardant cotton fabrics to determine how well they resist burning in microgravity. Results benefit research on flame-retardant textiles that can be used on Earth and in space.

Sprint Ultrasound:  Kelly performed his Flight Day 300 thigh and calf ultrasound scans today with assistance from Kopra and guidance from the Sprint ground team. Ultrasound scans are used to evaluate spaceflight-induced changes in the muscle volume. The Sprint investigation evaluates the use of high intensity, low volume exercise training to minimize loss of muscle, bone, and cardiovascular function in ISS crewmembers during long-duration missions. Upon completion of this study, investigators expect to provide an integrated resistance and aerobic exercise training protocol capable of maintaining muscle, bone and cardiovascular health while reducing total exercise time over the course of a long-duration space flight. This will provide valuable information in support of the long term goal of protecting human fitness for even longer space exploration missions.

Payload Data Handling (PDH) Removal and Replacement:  Peake removed the Payload Data Handling (PDH) unit in the JEM and replaced it with PDH2. The PDH unit being replaced is an engineering model flown up on ATV5 to replace a failed PDH.  PDH2 provides added capability for support of a hot-standby backup and automatic switchover for contingencies. The PDH units handle commanding to JAXA payloads, downlink channels and High-Rate payload data downlink.

Observation Analysis of Smectic Islands in Space (OASIS) Removal:  Kelly completed OASIS removal from the Microgravity Science Glovebox (MSG), an activity begun last week. Kopra then inserted the Burning and Suppression of Solids-Milliken (BASS-M) experiment into the MSG.

Orbital ATK (OA)-4 Cargo Operations:  Peake and Kopra continued transferring Cygnus cargo to ISS today.  Approximately 22 hours of transfer operations remain to be completed. Cygnus is scheduled to unberth from ISS on 19 February.

Today’s Planned Activities

All activities were completed unless otherwise noted.

  • OTKLIK. Hardware Monitoring
  • USND2 – Hardware Activation
  • Cygnus Cargo Operations
  • ER4 – Insertion of USB drive to allow starting of the SW load
  • Fine Motor Skills –  Examination
  • OASIS – Observation and Analysis
  • Glisser-M Video Hardware Battery Charge
  • JPM – Payload Data Handling (PDH) Unit R&R
  • BIOCARD. Experiment Ops
  • VIZIR Experiment
  • SPRINT – Scanning Ops
  • Orlan suit No.4 Height Sizing
  • SPRINT – Operator Assistance with the Experiment
  • Orlan 4 Backup Bladder Leak Check
  • Orlan No.4 and БСС (Orlan Interface Unit) leak checks and valve tests
  • ER4 – Insertion of DVD drive to allow starting of the SW load
  • Orlan 6 Backup Bladder Leak Check
  • SAMS – Sensor Removal
  • Orlan No.6 and БСС (Orlan Interface Unit) leak checks and valve tests
  • Bag consolidation in Columbus
  • USND2 – Hardware Deactivation
  • Photo/TV – LAB coder power cycle
  • SAMS Installation in Columbus
  • 24-hour ECG Monitoring (termination)
  • Glisser-M Video Hardware Battery Charge  (terminate)
  • Preparation of Glisser-M Video Hardware used during USOS EVA
  • Terminate EMU LLB Battery Autocycle
  • Columbus Bag Restow
  • 24-hour BP monitoring (terminate)
  • IMS Delta File Prep
  • МИРТ-3 Micro-integrator Changeout (А507, А607, А707). Install Nos.10395332, 10343135, 10343136. Dismantled МИРТ-3 10368557, 10368558, 10368560
  • Cygnus Cargo Operations
  • BASS – Crew Conference
  • INTERACTION-2. Experiment Ops
  • Cleaning FGB Gas-Liquid Heat Exchanger (ГЖТ) Detachable Screens 1, 2, 3
  • Cygnus – Cargo Operations Tagup
  • BASS Equipment Setup
  • СОЖ Maintenance
  • Air Heater Fan [БВН] Screen Cleaning in ТК 719
  • ER4 – DVD Removal and Stowage
  • BASSM – Payload Ops Overview
  • IFM – Waste and Hygiene Compartment (WHC) – Full Fill

Completed Task List Items

  • None

Ground Activities

All activities were completed unless otherwise noted.

  • Nominal System Commanding
  • PDH2 Checkout

Three-Day Look Ahead:

Wednesday, 01/27: Cyclops Install, BASS M, Water Mist PFE Deploy, Cygnus Cargo Transfer

Thursday, 01/28: Cygnus Cargo Transfer, PS120 J Install, JPM Int Port Camera Relocation

Friday, 01/29: Cygnus Cargo Transfer, BASS-M Ops, Lonestar Deploy, Kelly Off Duty

QUICK ISS Status – Environmental Control Group:

                              Component Status
Elektron On
Vozdukh Manual
[СКВ] 1 – SM Air Conditioner System (“SKV1”) On
[СКВ] 2 – SM Air Conditioner System (“SKV2”) Off
Carbon Dioxide Removal Assembly (CDRA) Lab Operate
Carbon Dioxide Removal Assembly (CDRA) Node 3 Override
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
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