NASA Space Station On-Orbit Status 22 March 2019 - Spacewalk Mission Accomplished

©NASA

NASA Space Station On-Orbit Status 22 March 2019 - Spacewalk Mission Accomplished.

Expedition 59 Flight Engineers Nick Hague and Anne McClain of NASA concluded their spacewalk at 2:40 p.m. EDT. During the six-hour, 39-minute spacewalk, the two NASA astronauts successfully replaced nickel-hydrogen batteries with newer, more powerful lithium-ion batteries for the power channel on one pair of the station's solar arrays.

Astronauts were also able to accomplish several get-ahead tasks including removing debris from outside of the station, securing a tieback for restraints on the Solar Array Blanket Box, and photographing a bag of tools for contingency repairs and the airlock thermal cover that is opened and closed for spacewalks.

These new batteries provide an improved power capacity for operations with a lighter mass and a smaller volume than the nickel-hydrogen batteries. Next week, McClain and flight engineer Christina Koch are scheduled to venture outside on the March 29 spacewalk to work on a second set of battery replacements on a different power channel in the same area of the station. This would be the first-ever spacewalk with all-female spacewalkers.

Hague and David Saint-Jacques of the Canadian Space Agency are scheduled to conduct a third spacewalk April 8 to lay out jumper cables between the Unity module and the S0 truss, at the midpoint of the station's backbone. This work will establish a redundant path of power to the Canadian-built robotic arm, known as Canadarm2. They also will install cables to provide for more expansive wireless communications coverage outside the orbital complex, as well as for enhanced hardwired computer network capability.

Space station crew members have conducted 214 spacewalks in support of assembly and maintenance of the orbiting laboratory. This was the first spacewalk for both McClain and Hague. Spacewalkers have now spent a total of 55 days, 21 hours and 39 minutes working outside the station.

On-Orbit Status Report

USOS Extravehicular Activity (EVA) #52: Today Anne McLain (EV-1) and Nick Hague (EV-2) exited the Joint Airlock and performed US EVA #52 (Lithium Ion Battery R&R EVA #1) with a Phased Elapsed Time (PET) of 6h 39m. The primary purpose of this EVA was to facilitate the installation of new P4 Li-Ion batteries and completed tasks included:

- Deploy V-Guide Bag on the S0 Starboard Wedge Face
- Retrieve Adapter Plate A and B from the EP
- Install Adapter Plate A in Slot 6
- Relocate Battery 4 to Adapter Plate A
- Install Adapter Plate B in Slot 4
- Relocate Battery 2 to Adapter Plate B
- Retrieve and Install Adapter Plate C in Slot 2
- Channel 2A Battery Prep

The crew was also able to complete the following get ahead tasks: N1N Common Berthing Mechanism (CBM) cleaning, Truss Jumper imagery, P4 (4A) Solar Array Blanket Boxes (SABB) restraint bolt engagement, P4 (2A) SABB restraint bolt engagement, Airlock thermal cover imagery, and V-Guide bag imagery.

Completed Task List Activities:
Veggie plant check

Ground Activities:
All activities are complete unless otherwise noted.
EVA support

Look Ahead:
Saturday, 03/23:

Payloads:
No utilization activities

Systems:
EVA debrief
EMU Water Recharge
METOX Regeneration Initiation
Housekeeping

Sunday, 03/24:

Payloads:
No utilization activities

Systems:
Crew off duty

Monday, 03/25:
Payloads:
Myotones
Cerebral Autoregulation
Food Acceptability
Material Science Laboratory Gas Supply Exchange

Systems:
EVA #53 prep

Today's Planned Activities:
All activities are complete unless otherwise noted.

Extravehicular Activity (EVA) Reminder for EVA In-Suit Light Exercise (ISLE) Preparation
USOS Extravehicular Activity (EVA) Communication Configuration
External Wireless Instrumentation System Network Control Unit EVA Inhibit
ISS HAM Radio Power Down in Service Module
ISS HAM Radio Power Down in Columbus
EVA COTS UHF Communication Unit (CUCU) Verify off
Extravehicular Activity (EVA) In-Suit Light Exercise (ISLE) Preparation
Closing of SM windows № 6,8,9,12,13,14 SM
VOZDUKH Deactivation. Activation of Vozdukh Atmosphere Purification System in mode 4. Vozdukh Vacuum Valve Group (БВК) -1,2,3, [СОА] CYCLE =20 min, Fan [ВН] = 1 min, Air Regeneration [РВ] =100%
Recovery of Central Post Laptop RS3 File System.
CARDIOVECTOR. Experiment Ops (Session one).
Extravehicular Mobility Unit (EMU) Purge
CARDIOVECTOR. Photography of the Experiment Session
Extravehicular Mobility Unit (EMU) In-Suit Light Exercise (ISLE) Prebreathe
Countermeasures System (CMS) VELO Exercise session
Deinstallation of GoPro HERO3 cameras in Soyuz 742. Transfer of Video to Hard Drive. Flash card closeout ops. Start recharging batteries (6). Tagup with specialists as necessary
Crewlock Depress
ПФ1, ПФ2 Dust Filter Cartridge Replacement and В1, В2 Fan Screen Cleaning in DC1 (ФГБ1ПГО_4_424_1, Bag 440-21 (00074645R) Discard the removed items. Reflect changes in IMS)
Crewlock Post Depress
Crewlock Egress
Photo/TV Node 3/Cupola Camcorder Setup
VGuide Bag Deploy
P4 Battery 4A R&R Worksite Preparation
ISS Crew Orientation
Familiarization with Auxiliary Computer System [ВКС].
SM Air Sampling for CO using ИПД
P4 Battery R&R Battery Adapter Plates Retrieval
Collecting SM and FGB Air Samples Using АК-1М Sampler
СОЖ maintenance
P4 Battery R&R Battery Adapter Plate A Install
Removal of TV cameras 1, 2 and Light Units ССД-302 in Soyuz 742 [CA] (Temp stow TV cameras КЛ-152М in Soyuz 742. ССД-302 light units - for disposal on Progress 440.)
ПФ1, ПФ2 Dust Filter Cartridge Replacement and В1, B2 Fan Screen Cleaning in MRM2
P4 Battery R&R Battery 4 Relocate
P4 Battery R&R Battery Adapter Plate B Installation
Soyuz 742 HERO3 GoPro camera batteries (6) recharge termination and stowage.
Progress 440 (SM Aft) Transfers and IMS Ops
P4 Battery R&R Battery 2 Relocate
Crew Time for ISS Adaptation and Orientation
P4 Battery R&R Battery Adapter Plate C Retrieval
PROFILAKTIKA-2. Exercise in [КОР-01-Н] set. Tagup with specialists as necessary
P4 Battery R&R Battery Adapter Plate C Installation
P4 Battery R&R Prepare 2A Battery and Cleanup 4A Worksite
Extravehicular Activity (EVA) Get Ahead Tasks
Crewlock Ingress
Crewlock Pre Repress
EVA Glove Photo Setup
Crewlock Repress
Extra Vehicular Activity (EVA) Post-EVA Activities
VOZDUKH Deactivation. Vozdukh Atmosphere Purification System [СОА] Mode 3 Activation. Vozdukh Vacuum Valve Group (БВК) 2,3, [СОА] CYCLE =20 min, Fan [ВН] = 1 min, Air Regeneration [РВ] =100%
Extra Vehicular Activity (EVA) Post-EVA Glove Photos
External Wireless Instrumentation System (EWIS) Network Control Unit (NCU) Enable
Photo/TV Extravehicular Activity (EVA) Camera Disassembly
Photo/TV Extravehicular Activity (EVA) GoPro Downlink
EVA Glove Photo Downlink
Return to nominal comm configuration after USOS EVA
Extravehicular Activitiy (EVA) Suit Intravehicular (IV) Review

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