NASA Space Station On-Orbit Status 26 August, 2020 – Back to Work in the U.S. Segment

Payloads – Combustion Integrated Rack/Advanced Combustion via Microgravity Experiments (CIR/ACME): T
The crew replaced the Gas Chromatograph (GC) helium bottle, GC check gas bottle, and manifold bottles 2 and 4. During these bottle exchanges they also performed quick-disconnect (QD) lubrication to prevent the potential for any future leaks at the QD interfaces. The bottle exchanges are in preparation for the upcoming BRE part 2 (Burning Rate Emulator), which is one of the ACME suite of five experiments. The BRE experiment runs are focused on spacecraft fire prevention. More specifically, BRE’s objective is to improve our fundamental understanding of materials flammability and to assess the relevance of existing flammability test methods for low and partial-gravity environments.

Systems

Hurricane Laura Response: In preparation for Hurricane Laura, Mission Control operations was handed over to the the Backup Control Center Activation Team (BAT) located in Palestine, TX. The BAT team and the International Partners have access to command and telemetry through US assets during this time. Changes were made to the timeline for the next few days to defer activities requiring significant interaction with US ground specialists.

ISS Leak Isolation: This morning, the crew re-ingressed the JEM module. Ground teams will review data and prepare conclusions and recommendations following the module isolation activity. The ECLS Community has been tracking an increase in nominal atmosphere leakage since October 2019.

Completed Task List Activities:

EHS Compound Specific Analyzer-Combustion Products (CSA-CP) Extended Maintenance
Kcentra Reconstitution Demonstration
Today’s Ground Activities:
All activities are complete unless otherwise noted.

IAS Comm Config for MRM Ops
Look Ahead Plan

Thursday, 8/27 (GMT 240)
Payloads:

CIR/ACME Configure for BRE
Food Physiology
Systems:

TOCA WRS Analysis/Data Record
Friday, 8/28 (GMT 241)
Payloads:

CIR-Hardware Return
MSRR/MSL SCA Exchange
Radi-N2 Deploy
Systems:

HMS AED Inspect
Saturday, 8/29 (GMT 242)
Payloads:

Payload NAS Vent Clean
Systems:

Crew Off Duty
Today’s Planned Activities:
All activities are complete unless otherwise noted.

??? (Universal Bioengineering Thermostat). Checking ???-? No.07 thermostat temperature and unobstructed area near ???-? inlet/outlet vents
LOR. Experiment Session & Photo Ops
Regeneration of Micropurification unit (???) ?2 cartridge
Weekly Cleaning
UF-ATMOSFERA. PL Deactivation & Closeout Ops
JEM Ingress
CIR Item Gather
Combustion Integrated Rack (CIR) Rack Doors Open/Close
CIR Bottle Replace
???? comm configuration for MRM1 and MRM2
SEPARATION. Preventive maintenance of [???-?-??] Vacuum Unit.
Air ducts ??1, ??2 cleaning in DC1
Connecting SM ??-??? PEV valves and MRM2 Pressure Relief Valves (???) control circuits, and MRM2 pressure control circuits from SM
Urine Processing Assembly 6.4.1 Software Transition Gather [ABORTED]
VIZIR. Session with Photo image coordinate referencing – smart drawers system (????-??)
Urine Processing Assembly 6.4.1 Software Transition Setup [ABORTED]
Testing pressure equalization valves (PEV) and pressure relief valves (???); measuring pressure in [??] and SM ??? from EVA Support Panels (???) in MRM2
ACME MWA Prep
Crew Handover Conference
?????-???. Preparation, Activation and Closeout
Urine Processor Assembly 6.4.1 Software Transition Init [ABORTED]
Urine Processor Assembly Software Transition Closeout [ABORTED]