SpaceX-14 Status: SpaceX has completed the CUCU Broadcast Test and configured CUCU and Dragon UHF for rendezvous. The Dragon vehicle continues to follow the nominal rendezvous profile that supports an ISS capture tomorrow at 6:00 am CDT.

Advanced Combustion via Microgravity Experiments (ACME) Electric-Field Effects on Laminar Diffusion (E-Field) Flames: In preparation for the upcoming ACME E-Field Flames investigation the crew installed the ACME Mesh Positive Power Supply. The ACME investigation is a set of five independent studies of gaseous flames to be conducted in the Combustion Integrated Rack (CIR). ACME’s primary goal is to improve fuel efficiency and reduce pollutant production in practical combustion on Earth. For E-Field Flames an electric field with voltages as high as 10,000 volts is established between the burner and a mesh electrode. The motion of the charged ions, which are naturally produced within the flame, are strongly affected by a high-voltage electric field. The resulting ion-driven wind can dramatically influence the stability and sooting behavior of the flame. Conducting the tests in microgravity allows for great simplifications in the analysis, enabling new understanding and the development of less polluting and more efficient combustion technology for use on Earth.

Mouse Stress Defense: To prepare for the transfer on Thursday of mice from the SpaceX-14 vehicle, the crew perform a pre-mission set up of the Mouse Habitat Cage Units for the Cell Biology Experiment Facility (CBEF). They installed food cartridges, odor filters, water and filled up the washer fluid container. The crew was unable to add water to 2 of the cage units. Ground teams are investigating the issue. Microgravity provokes cellular mechanical stresses and perturbs cellular signaling, leading to reduction of muscle and bone density. To overcome these stresses, one of the promising strategies is to activate Nrf2, a master regulator of antioxidant pathway. Mouse Stress Defense investigates how Nrf2 contributes to effective prevention of space-originated stresses.

On-board Training (OBT) Dragon Robotics Onboard Trainer (ROBoT) Session 2: The crewmembers tasked with capturing Dragon completed their second, and final, OBT session using ROBoT. ROBoT is an on-orbit version of the ground-based Dynamics Skills Trainer (DST) that simulates robotics operations with graphical feedback. Today’s runs allowed the crew to practice Free Drift timing, malfunction response, and nominal rate approaches. After the training session the crew had a conference with ground specialists where they discussed any final questions or comments related to capture and berthing operations.

Today’s Planned Activities

All activities are complete unless otherwise noted.



Max Cycle Ergometer w/Vibration Isolation & Stabilization (CEVIS) Portable PFS Power Up

ALGOMETRIYA. Pressure and Thermal Algometry preparation for and measurement session

Replacement of ЗПЛ-1М2 (Ф-1, Ф-2) cartridges in СБМП (preparation)

Max Cycle Ergometer w/Vibration Isolation & Stabilization (CEVIS) Portable PFS Subject

VEGGIE Software On-Board Training

Demating ЗПЛ-1М2 (Filter-1, Filter-2) telemetry connectors from БКС

Replacement of ЗПЛ-1М2 (Ф-1, Ф-2) cartridges in СБМП

XF305 Camcorder Setup

Mouse Habitat Unit (MHU) Removal for Pre-mission Setup

Mouse Stress Defense Pre-mission Setup

ISS Crew Orientation

Combustion Integrated Rack Rack Doors Open

Combustion Integrated Rack Front End Cap Open

Wastewater Storage Tank Assembly (WSTA) Fill

FAZOPEREKHOD. Preparation steps and starting the experiment

ACME Hardware Replace

VEG-03 Dual Facility Watering for each Plant Pillow

On-board Training (OBT) Dragon Attached Phase Operations Review

СОЖ maintenance

Mouse Stress Defense Pre-mission Setup

IMS Update

Combustion Integrated Rack Front End Cap Close

FAZOPEREKHOD. Closeout Ops

Combustion Integrated Rack Rack Doors Close

Mate ЗПЛ-1М2 (Filter 1, Filter-2) Telemetry Connectors to БКС

Replacement of ЗПЛ-1М2 (Ф-1, Ф-2) cartridges in СБМП (Closeout Ops)

SPHERES Payload OBT

Max Cycle Ergometer w/Vibration Isolation & Stabilization (CEVIS) Portable PFS Partial Stow

SPHERES Crew Conference

INTER-MAI-75. HAM Radio Hardware Activation

ALGOMETRIYA. Strain Measurements Mode

MERLIN 5 Desiccant Swap

Checkout of ВСБ-95 Comm Panel in DC1, Telephone Communication System [СТСО] Test in DC1

External Wireless Instrumentation System (EWIS) Internal Antenna Move

On-board Training (OBT) Dragon Robotics Onboard Trainer (ROBoT) Session 2

On-board Training (OBT) Dragon Attached Phase Operations Review

Veggie Science Kit Locate

Wastewater Storage Tank Assembly (WSTA) Fill

Countermeasures System (CMS) Max Cycle Ergometer w/Vibration Isolation & Stabilization (CEVIS) Portable PFS Conclude

Health Maintenance System (HMS) Spaceflight Cognitive Assessment Tool for Windows (WinSCAT) Test

Dragon Vestibule Outfitting Hardware Gather

Dragon Rendezvous Operations Conference

Combustion Integrated Rack Hardware Return

Network Attached Storage (NAS) Hard Drive Swap

Ghost camera setup in Cupola

INTER-MAI-75. Equipment deactivation and cleanup

ABOUT GAGARIN FROM SPACE. Ham Radio Session with “The Leaders Club” Expedition

ALGOMETRIYA. Conducting measurements in tenso- and thermo-algometry mode

Completed Task List Activities

ESA Columbus Toolbox Cue Card Removal

USB Card Reader Swap

Dragon RPOP Setup

Ground Activities

All activities are complete unless otherwise noted.



N2 ABCM Inspections

LAB MCA Calibration

CUCU Broadcast Test

CEVIS Spare Stowage Confirmation

Crew Recorded Message

Three-Day Look Ahead:

Wednesday, 04/04: SpaceX-14 Capture and Berthing, SPHERES Run, Veggie03, Mouse Habitat Setup

Thursday, 04/05: Dragon Cargo Ops, Mouse Stress Defense, TangoLab 2 Install, TangoLab 1 Card R&R, POLAR Sample Xfr, MVP Install, NanoRacks Plate Reader2 Ops

Friday, 04/06: Veg03 Ops, Metabolic Tracking Setup, Mouse Stress Defense Ops, STP-H5 Imagery, Medical Contingency OBT, MVP Insertion Ops, Made-In-Space Setup, METEOR Ops

QUICK ISS Status – Environmental Control Group: