Mission Diary – 10 May

Final packing of Dragon was completed this Tuesday as the crew prepared for tomorrow’s undocking and return to Earth of the logistics freighter which for a time shared ISS space with the Cygnus module. In other activity, a wide range of science experiments were conducted as outlined below.

ISS Daily Report 10 May

SPHEROIDS De-installation: SPHEROIDS experiment containers were removed from KUBIK 6 and the Minus Eighty Degree Laboratory Freezer for ISS (MELFI) before being transferred and packed into the SPHEROIDS launch bags for return on SpX-8. Incubation and data transfer has been completed for all samples according to schedule. The SPHEROIDS experiment investigates the effects of microgravity on endothelial cell function with respect to blood vessel formation, cellular proliferation, and programmed cell death. Results could help in the development of potential countermeasures to prevent cardiovascular deconditioning in astronauts and improve knowledge of endothelial functions on Earth.

Radiation Dosimetry inside ISS-Neutron (RaDI-N) Retrieval: The USOS crew retrieved all 8 of the Space Bubble Detectors that were deployed last week in the ISS for the Radi-N experiment and handed them over to the Russian crewmember to be processed in the Bubble Reader. The Canadian Space Agency (CSA) RaDI-N investigation measures neutron radiation levels while onboard the ISS and uses bubble detectors as neutron monitors which have been designed to only detect neutrons and ignore all other radiation.

Japan Aerospace Exploration Agency (JAXA) High Quality Protein Crystal Growth (PCG) Removal: The PCG-Canister Bags were removed from the Cell Biology Experiment Facility (CBEF) and the Protein Crystallization Research Facility (PCRF) before being stowed for return on SpX-8. The JAXA PCG-Demo investigation crystallizes proteins using the counter-diffusion technique and permeation method that minimizes impurities, forming high-quality crystals for use in medical studies and ecological applications.

Multi-Omics Operations:  The crew supported the Japan Aerospace Exploration Agency (JAXA) Multi-Omics investigation by collecting human samples and inserting them into MELFI. The investigation evaluates the impacts of space environment and prebiotics on astronauts’ immune function by combining the data obtained from the measurements of changes in the microbiological composition, metabolites profiles, and the immune system.

Dose Tracker: The crew completed entries for medication tracking. This investigation documents the medication usage of crew members before and during their missions by capturing data regarding medication use during spaceflight, including side effect qualities, frequencies and severities.

Node 2 Nadir (N2N) Control Panel Assembly (CPA)-2 J5 Cable Remove & Replace (R&R):  The crew successfully R&Rd the N2N Common Berthing Mechanism (CBM) CPA-2 J5 cable with a spare cable flown on OA-4. This cable harness connects the latch controller, latch actuator, and position sensors for CPA-2 Latch 2.  This R&R could only be completed as an Intravehicular Activity (IVA) during a N2N berthed vehicle phase as the cable is between the visiting vehicle and the ISS. Damage to the backshell of the cable was reported by the crew last year during SpX-6 departure vestibule outfitting.

Pressurized Mating Adapter (PMA1)/Node 1 Intermodule Ventilation (IMV) Reconfiguration: Russian Segment and USOS split ventilation remains in effect. The Oxygen Generation Assembly (OGA) was moded to 60% production to increase the O2 partial pressure. USOS 24-hour average is 3.17 mmHg. Teams will continue to monitor CO2 at multiple locations throughout ISS.

SpX-8 Dragon Departure Prep: Today, the crew completed Dragon packing, egress and closed its hatch. Following hatch closure, the crew completed installation of the four Common Berthing Mechanism (CBM) Control Panel Assemblies (CPAs) at the Node 2 Nadir vestibule. Ground teams then completed associated activation and checkout of the CBM.  Departure activities will continue tomorrow with the removal of power and data jumpers, Node 2 Nadir hatch closure, vestibule depress, and subsequent unberth. Dragon release is scheduled for 2.21pm UTC Wednesday. 

Today’s Planned Activities


All activities were completed unless otherwise noted.

  • SPHEROIDS Deinstallation of 4 experiment containers from KUBIK 6
  • Double Cold Bag (DCB) Packing
  • RADIOSKAF. Photo/Video r/g 2186
  • RADIOSKAF. VHF (Kenwood D700) Transceiver Setup and Activation to Broadcast Mode r/g 2185
  • SPHEROIDS Retrieval of 4 containers from MELFI
  • SPHEROIDS Container packing
  • ПФ1-4 Dust Filter Cartridge Replacement in SM
  • DRAGON Transfers
  • Progress 432 (Aft) Transfers and IMS Ops / r/g 1812, 1832
  • JAXA Protein Crystal Growth canister removal
  • DAN. Experiment Ops r/g 0119
  • DAN. Experiment Operator Assistance / r/g 0119
  • Retrieval of JAXA Protein Crystal Growth (PCG) Ice Bricks
  • JAXA Protein Crystal Growth (PCG) Sample Pack
  • DAN. Experiment Photos / r/g 2179
  • Soyuz 719 Samsung Tablet Recharge, Initiate
  • DRAGON. Transfers
  • RSS1 laptop BRI data download / r/g 2052
  • DRAGON. Transfers
  • Exercise Data Downlink via OCA
  • COL- DC Troubleshooting
  • KUBIK 5 Centrifuge Insert Circlip Recovery
  • KUBIK5 Interface Plate Removal
  • KUBIK5 Centrifuge Installation and Recovery
  • KUBIK5 Centrifuge Insert Installation
  • Dragon Center Stack Transfers
  • Soyuz 720 Samsung Tablet Recharge, Initiate
  • Symbolic Activity Preparation / r/g 2183
  • Comm Subsystem [СТТС] routine maintenance
  • Headset Audit /  r/g 2178
  • СОЖ Maintenance
  • Dragon Cargo Operations Conference
  • VIZIR. Experiment Ops with СКПФУ Hardware r/g 2187
  • WRS Water Sample Analysis
  • Comm Subsystem [СТТС] routine maintenance (LF path, Comm Panels, and VHF receiver test)
  • Headset Audit / r/g 2178
  • Multi Omics (MO) Sample Collection
  • Installation of Node 2 Nadir Common Berthing Mechanism (CBM) Controller Panel Assembly (CPA)
  • Multi Omics (MO) Sample Insertion into MELFI
  • Multi Omics (MO) Equipment Stowage
  • MATRYOSHKA-R. BUBBLE-dosimeter gathering and measurements r/g 2180
  • Dragon Egress in Preparation for Departure
  • Complete the Dose Tracker application, Subject
  • NAPOR-mini RSA. Cleaning Onboard Memory Storage БЗУ-М vents / r/g 1906
  • Soyuz 719 Samsung Tablet Recharge, Terminate
  • RADIN  Retrieval of Radi-N detectors
  • RADIN Handover of RADI-N Detectors to RS
  • MATRYOSHKA-R. Handover of BUBBLE-dosimeter detectors from USOS r/g 2180
  • DOSETRK Questionnaire Completion
  • MATRYOSHKA-R. BUBBLE-dosimeter gathering and measurements r/g 2180
  • Installation of Node 2 Nadir Common Berthing Mechanism (CBM) Controller Panel Assembly (CPA)
  • Soyuz 720 Samsung tablet charge, end
  • IMS Delta File Prep
  • TOCA Data Recording
  • VHF2d test from SM (using primary СТТС sets )
  • Robotic Workstation (RWS) Display and Control Panel (DCP) Powerup in Cupola and LAB
  • INTERACTION-2. Experiment Ops / r/g 2181

Completed Task List Items

  • None

Ground Activities

All activities were completed unless otherwise noted.

  • Dragon departure prep
  • Nominal ground commanding

Three-Day Look Ahead:

Wednesday, 05/11: SpX-8 unberth/splashdown, METEOR s/w image load, Sprint, Spheroids data copy

Thursday, 05/12: JSSOD M removal/Cubesat deployer insert, Rodent Research, Neuro Mapping

Friday, 05/13: USOS crew off duty as payback for working Russian Victory Day holiday on Monday, May 9

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 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 Off
Trace Contaminant Control System (TCCS) Node 3 Full Up
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