Dose Tracker Data Entry: The crew performed their weekly Dose Tracker data logging, responding to a questionnaire which asks if crew members have used medications since the last entry, what prompted them to use the medication, how well it worked, how frequently they repeated doses, and if the medication caused side effects. The Dose Tracker investigation uses an iPad app to collect information on members’ medication use during their missions. Results help determine whether medicines act differently on humans in space than they do on Earth.

European Space Agency (ESA) Active Dosimeter Swap: The crew swapped the currently worn Mobile Unit (MU) with a charged MU and initiated the data download to the ESA Active Dosimeter Personal Stowage Device (PSD). The European Crew Personal Active Dosimeter is an active device worn by European ISS crewmembers in orbit to measure the radiation exposure. This device, coupled with other dosimeters in ESA’s Columbus Laboratory, provides radiation dosage information that can be used to support risk assessment and dose management. The future goal is to enable the verification of radiation monitoring systems for future medical monitoring of crewmembers in space.

U.S. Extravehicular Activity (EVA) #41 Preparations: In preparation for tomorrow’s planned EVA, today the crew completed the following:

Configured tools required for the EVA.

Verified that batteries are installed in Pistol Grip Tools (PGTs) and EVA cameras.

Prepared the Equipment Lock, EMUs and ancillary hardware to support EVA prep activities.

Procedures review including detailed timeline, briefing package, tool config summary and planned get-ahead tasks.

Following the procedures review the crew participated in a conference with ground teams to discuss questions or concerns. The crew is scheduled to egress at 7:10AM CDT.

Today’s Planned Activities

All activities were completed unless otherwise noted.

Recharging Soyuz 733 Samsung PC Battery (if charge level is below 80%)

Dose Tracker Data Entry Subject

[СКВ1] Electrical Cables Checkout

SCENARIO. Observations and photography

ISS Crew departure preparation

Health Maintenance System (HMS) Periodic Health Status (PHS) Pre EVA Examination

Health Maintenance System (HMS) Pre-EVA Periodic Health Status Examination

Demating telemetry connectors

[СКВ1] Electrical Cables Checkout

ESA Weekly crew conference

ELECTRONIC NOSE. Experiment Ops Part 1

Study of cardiac bioelectric activity at rest

Mating telemetry connectors

[СКВ1] Electrical Cables Checkout

ESA ACTIVE DOSIMETER MOBILE UNIT SWAP

Separation and Pumping Unit [БРПК-2] R&R

Recharging Soyuz 732 Samsung PC Battery (if charge level is below 80%)

Pille sensors prep for USOS EVA

Dose Tracker Data Entry Subject

Scheduled monthly maintenance of Central Post Laptop. Laptop Log-File Downlink via OCA

Extravehicular Activity (EVA) Tool Configuring

Mating of telemetry connectors

Separation and Pumping Unit [БРПК-2] R&R

Conference of Search and Rescue (ГПСК) specialists with returning crew

Extravehicular Activity (EVA) Tool Audit.

Private Psychological Conference (PPC)

ELECTRONIC NOSE. Experiment Ops Part 2

Terminate Soyuz 733 Samsung PC Battery Charge

Filling (separation) of ЕДВ (КОВ) for Elektron or ЕДВ-СВ

Program Management/ISS CREW Conference

ELECTRONIC NOSE. Photography

CCE Preparation

Extravehicular Activity (EVA) iPad Contingency Procedures preparation

Extravehicular Activity (EVA) Procedure Review

Verification of ИП-1 Flow Indicator Position

PROBIOVIT. CRYOGEM-03 refrigerator Setup

PROBIOVIT. Glovebox-S Setup

CONTENT. Experiment Ops

ISS HAM Service Module Pass

Terminate Soyuz 732 Samsung PC Battery Charge

Equipment Lock (E-LK) Preparation

SM windows Nos.6,8,9,12,13,14 shutter closure

Completed Task List Items

None

Ground Activities

All activities were completed unless otherwise noted.

EVA procedures review conference

Three-Day Look Ahead:

Thursday, 03/30: EVA #41

Friday, 03/31: Crew departure prep, EVA debrief/cleanup

Saturday, 04/01: Crew off duty, housekeeping

QUICK ISS Status – Environmental Control Group: