After spending nearly a month tending to the International Space Station’s first crop of Chinese cabbage, astronaut Peggy Whitson harvested the leafy greens on Feb. 17.Credit: NASA.
The crew is harvesting plants today grown on the International Space Station that will be returned to Earth aboard the SpaceX Dragon. Also, a variety of student experiments submitted from schools across the United States were activated inside the orbital laboratory.
Dragon is due to return to Earth and splash down in the Pacific Ocean March 19. The resupply ship will carry back gear and science samples for analysis by NASA personnel. Plants that were grown on petri plates for the APEX-04 study will also be returned aboard Dragon. Astronaut Peggy Whitson harvested those plants today helping researchers study the molecular changes that plants experience when grown in space.
Future scientists had their experiments activated today inside the NanoRacks commercial space research facility aboard the station. Students from five U.S. schools will be exploring ways to reduce infections, improve muscle injury treatments, grow plants on Mars, filter bacteria and solve common slippery surface problems.
On-Orbit Status Report
Mobile Servicing System (MSS) Operations: Overnight, Robotics Ground Controllers unstowed the Stratospheric Aerosol and Gas Experiment (SAGE) Instrument Panel from the SPDM Enhanced Orbital Replacement Unit (ORU) Temporary Platform (EOTP) and installed it on the SAGE Nadir Viewing Platform (NVP). They then maneuvered the SSRMS to support surveys of the SAGE IP, the EXpedite the PRocessing of Experiments to Space Station (EXPRESS) Pallet Controller Assembly (ExPCA) and the S1 Lower Outboard (LOOB) Camera using the SSRMS and SPDM Camera Light Pan/Tilt Unit (PTU) Assemblies (CLPAs). MSS performance was nominal.
APEX-04: The crew harvested plants growing on petri plates in the Veggie facility. They configured the Advanced Biology Research Facility (ABRS) Photo grid on the Maintenance Work Area (MWA) Work Surface to image the plant growth status prior to plant insertion into a Kennedy Space Center (KSC) Fixation Tube (KFT) for RNAlater fixation. After 24 hours, the samples in the KFTs will be inserted in Minus Eighty Degree Celsius Laboratory Freezer for ISS (MELFI) for return on SpaceX (SpX)-10.
Everywear App Update: On February 2 when the crew activated the EveryWear application in support of the Skin Suit activities, the iPad Air 2 displayed an error message. Subsequent investigation indicated the need for a new virtual machine (Stargate) to enable connectivity of iPad to the LS1 Server and the internet. Stargate was deployed today and the EveryWear Application is functioning nominally. The Everywear assistant is an ambulatory data collection system that uses wearable sensors connected to a Space Station iPad tablet computer, which is wirelessly synchronized with computers on the ground. This easy-use system seeks to demonstrate the benefits of extensive physiology data collection for both science and medical follow-up purposes by improving usability for ISS crew members.
NanoRacks Module 9: The crew activated five Student Spaceflight Experiments Program (SSEP)/National Center for Earth and Space Science Education (NCESSE) experiments shown below. Supporting various schools and student designed experiments studying a range of objectives, the SSEP allows students to design experiments that address real challenges of living and working in space. The program also is a key initiative for U.S. science, technology, engineering and math (STEM) education, educating and inspiring the next generation of scientists and engineers to work on the space program.
Will a Biofilm Form on a Rat Catheter in Microgravity Differently than in Gravity? (East Lyme Middle School, East Lyme, CT)
Attempts is to see if a biofilm will form differently on a rat artery catheter in microgravity from the bacteria Staphylococcus epidermidis which is naturally occurring in the human body. If the biofilm forms thinner in space than on Earth, this will provide additional information to NASA for astronaut health and for scientists and doctors to hopefully improve catheters and reduce infection on Earth.
The Effects of Microgravity on Muscle Tissue Regeneration (McNair Academic High School, Jersey City, NJ)
Analyzes the potential of the drug, Tissue Regeneration Factor at 150 mg (TRF-150) to regenerate shoulder muscle tissue of an adolescent pig faster when exposed to a microgravity environment to determine the amount of tissue regenerated under controlled scenarios of induced harm. Both qualitative and quantitative methods of measurement are used to determine this experiment's success. This experiment helps determine if a microgravity environment aids in the regeneration of organic tissue. If the experiment implies the increase of the regenerative properties of TRF-150, simulated microgravity environment can be implemented to help patients with muscle injuries.
Arabidopsis Germination in Martian Soil Simulant (Open Window School, Bellevue, WA)
Determines if Arabidopsis thaliana germinates in Martian soil simulant in microgravity. Other researchers have shown A. thaliana grows in Martian soil simulant but the lower gravity of Mars cannot be simulated on Earth. The microgravity environment on the ISS allows for testing of plant growth in an environment closer to the gravity on Mars.
Living Water Filters: Triops in Microgravity (North Star Charter School, Boise, ID)
Investigates the capability of Triops longicaudatus to filter bacteria from pond water in microgravity as well as it does on Earth. After the experiment returns to Earth, analysis will be conducted to determine which kinds of bacteria remain. Also to be measured is the mass of the Triops that were hatched in microgravity and compare it to the mass of the Triops that were hatched on Earth.
Slippery Liquid-Infused Porous Surfaces (SLIPS) in Microgravity (Arts and Technology Academy, Eugene, OR)
Tests SLIPS in a microgravity environment to see if the change in gravitational environment alters its properties as compared to Earth. If it does, it could possibly solve frost-over if SLIPS can remain on the face of a solid as well as make liquids slip off of the solid in microgravity.
Fluid Shifts Hardware Transfer: The crew gathered and configured the Fluid Shifts Hardware, including the ultrasound, in the Russian Segment prior to two days of operations utilizing the Chibis (Lower Body Negative Pressure) device. Fluid Shifts is a joint NASA-Russian experiment that investigates the causes for severe and lasting physical changes to astronauts' eyes. Because the headward fluid shift is a hypothesized contributor to these changes, reversing this fluid shift with a lower body negative pressure device is investigated as a possible intervention. Results from this study may help to develop preventative measures against lasting changes in vision and eye damage.
Node 3 (N3) Port Center Disk Cover (CDC)/Controller Panel Assembly (CPA) Installation: The crew installed the following:
Thirteen augmentation plates in Axial Common Berthing Mechanism (CBM) Center Disk Cover (CDD)
N3 external antenna communication cable
Three N3 Port Common Berthing Mechanism (CBM) Control Panel Assemblies
Armored axial CBM CDC in N3 Port Vestibule
Completion of these activities will provide Micro Meteoroid Orbital Debris (MMOD) and thermal protection for the N3 Port bulkhead, hatch, and CBM hardware following Pressurized Mating Adapter (PMA) 3 relocation.
Extravehicular Activity (EVA) Tool Config: The crew continued configuring hardware, bags and tools for the Electrical Power Distribution and Control (EPIC) Special Purpose Dexterous Manipulator (SPDM) Lube EVA, EPIC Shields EVA and Express Logistics Carrier (ELC)4 Express Pallet Controller Assembly (ExPCA) EVA tentatively planned for late March/early April.
Today's Planned Activities
All activities were completed unless otherwise noted.
ENERGY Diet Log of Breakfast
Ultrasound 2 HRF Rack 1 Power On
Ultrasound 2 Scan Prep
Ultrasound 2 Scan performed by a Crew Medical Officer (CMO)
Ultrasound 2 Scan
Ultrasound 2 Guided Data Export
Health Maintenance System (HMS) Ultrasound 2 Post Exam
PFS Gas Delivery System Portable PFS Photography
APEX-04 Procedure Review
APEX-04 Hardware Gather
Cleaning FGB Gas-Liquid Heat Exchanger (ГЖТ) Detachable Screens 1, 2, 3
Habitability Human Factors Directed Observations - Subject
MATRYOSHKA-R. Prep and Initialization of Bubble-Dosimeter Detectors
Everywear Application Update
ESA ACTIVE DOSIMETER MOBILE UNIT SWAP
iPad Air 2 IP Configuration Refresh
Radiation Dosimetry Inside ISS-Neutrons Hardware Handover
MATRYOSHKA-R. Handover of BUBBLE-dosimeters to USOS
Radiation Dosimetry Inside ISS-Neutrons
MATRYOSHKA-R. BUBBLE-dosimeter initialization and deployment for exposure
NanoRacks Module 9 Ops Session 3
ENERGY Diet Log of Lunch
Fluid Shifts Hardware USOS Gather
APEX-04 Payload Harvest
US EVA EPIC SPDM Lube Tool Config
24-hour ECG Recording (termination)
Fluid Shifts Hardware RSOS Transfer
Fluid Shifts Ultrasound Service Module Setup
24-hour Blood Pressure Recording (start)
Pressurized Mating Adapter 3 (PMA 3) Node 3 Port Hatch Open
Recharging Samsung tablet in 48S
Node 3 Port Center Disk Cover and Controller Panel Assembly Installation
Cleaning vent screens on FGB interior panels 116, 316, 231, 431
FLUID SHIFTS. USDN connection in SM
Terminate Soyuz 732 Samsung PC Battery Charge (as necessary)
Polar Desiccant Pack Swap
Metal Oxide (METOX) Regeneration Termination
Node 3 Port Hatch Seal Inspection
Metal Oxide (METOX) Regeneration Initiation
Pressurized Mating Adapter 3 (PMA 3) Node 3 Port Hatch Close
ENERGY Diet Log of Dinner
Completed Task List Items
All activities were completed unless otherwise noted.
N3 Port CBM prep for demate checkout
S4 Solar Array Voltage Maximum Power
Lab CDRA Operate 2 half cycles
Three-Day Look Ahead:
Thursday, 03/09: CubeSate Deployer Removal, HXP Adapter Install, Fluid Shifts, PMA3 Relocate Preps
Friday, 03/10: Rodent Research procedure review/equipment gather, Fluid Shifts, Cygnus OBT
Saturday, 03/11: Rodent Research operations, Auxin Transport equipment gather/run #4
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 - Standby
Carbon Dioxide Removal Assembly (CDRA) Node 3 - Operate
Major Constituent Analyzer (MCA) Lab - Operate
Major Constituent Analyzer (MCA) Node 3 - Operate
Oxygen Generation Assembly (OGA) - Process
Urine Processing Assembly (UPA) - Process
Trace Contaminant Control System (TCCS) Lab - Off
Trace Contaminant Control System (TCCS) Node 3 - Full Up