U.S. Spacewalk 99

NASA
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About this episode ESA astronaut Sophie Ado and NASA astronaut Jessica Meir successfully completed the 284th spacewalk for ISS ma… AI summary

ESA astronaut Sophie Ado and NASA astronaut Jessica Meir successfully completed the 284th spacewalk for ISS maintenance, replacing a critical retroreflector and HD camera while addressing a suit mobility issue. The mission also advanced the Microorganisms experiment and AMS radiator preparation, with Meir moving into third all-time for female spacewalks.

Key takeaways 5
  • Jessica Meir achieved third all-time for total spacewalks among women at NASA (7 total), trailing Peggy Whitson (10) and Suni Williams (9).
  • The primary task was replacing the Node 2 forward planar retroreflector to support spacecraft navigation during rendezvous and docking operations.
  • A suit mobility issue was resolved mid-EVA: Ado's left shoulder restriction was caused by the glove heater harness catching on the shoulder MLI; unzipping the thermal mobility garment (TMG) resolved the friction.
  • The ISS has accumulated over 75 days and 3 minutes of total cumulative spacewalk time.
  • The Alpha Magnetic Spectrometer (AMS) radiator preparation involved torquing 46 of 50 bolts; anchor guide studs were installed on corners for future maintenance.
Notable quotes 3 AI-generated: wording and quote attribution may be wrong. Use the play link to verify.
  • “It's been the mentoring aspect. This is the third rookie I've been able to have the honor and privilege of going out the hatch with. That makes all of this so much more fulfilling for me.”
    ▶ 8:21:59 Jessica Meir reflecting on her seventh spacewalk and mentoring a new astronaut.
  • “Night and day. How does your shoulder feel like? ... Much better for the mobility night and day.”
    ▶ 8:01:21 Sophie Ado reporting that unzipping her suit resolved the shoulder restriction she experienced earlier.
  • “The reflector has been contaminated with micrometeoroid debris. Slightly. It's still performing, but we do want to go ahead and swap out and get a new one on there.”
    ▶ 2:55:41 Explanation for why the retroreflector replacement was necessary despite the old unit still functioning.

Chapters & Sections (160)

1:38 ISS Spacewalk Preparation and Tasks chapter 2
5:28 ISL Exercise Completion and Flight Director Handover
11:12 Spacewalk Suit Details and Objectives
15:59 Spacewalk Preparation and Objectives chapter 1
23:21 Spacewalk Objectives and Microbial Research
28:16 Spacewalk Preparation and SAFER Installation chapter 2
33:18 SAFER Installation and Purpose
38:05 Spacesuit Features and Airlock Procedures
43:02 Spacewalk Preparations and Objectives chapter 1
48:56 Airlock Depressurization Procedures
58:51 ISS Spacewalk Depressurization Procedures chapter 2
1:02:46 Initiating Depressurization Procedures
1:04:56 Crew Lock Depressurization Monitoring
1:11:59 ISS Spacewalk Depressurization Procedures chapter 2
1:14:39 Crew Lock Depressurization Steps
1:17:31 Spacewalk Start and Depressurization
1:21:13 Spacewalk Tether Configuration and Depressurization chapter 2
1:25:25 Spacewalk Tether Configuration and Depressurization
1:29:02 Spacewalk Objectives and Depressurization
1:36:28 Spacewalk Depressurization and Suit Power Switch chapter 2
1:40:58 Post-depressurization power and equipment procedures
1:42:49 DCM Valve and Suit Pressure Checks
1:45:02 Spacewalk Airlock Egress Procedures chapter 2
1:46:57 Airlock Egress and Equipment Checks
1:50:40 Airlock Egress and Tether Release
1:52:37 Spacewalk 99 Bag Transfer and Egress chapter 1
1:58:25 Airlock Bag Transfer and Stowage
2:02:11 Spacewalk Egress and Buddy Checks chapter 1
2:06:25 Thermal Hatch Closure and Buddy Checks
2:10:09 Spacewalk Prep and Task Overview chapter 2
2:12:04 Spacewalk Navigation and Safety Instructions
2:14:17 Spacewalk Tasks and Equipment Replacement
2:16:41 Spacewalk Navigation and Safety Protocols chapter 2
2:19:59 Orbital Sunset and Worksite Safety
2:22:59 APFR Removal and Canadarm Two Preparation
2:24:52 Canadarm2 Deployment and Camera Replacement chapter 2
2:27:54 Spacewalkers Moving to Work Sites
2:29:42 Canadarm2 Approach and Reflector Replacement
2:31:56 APFR Installation and Tether Swap Procedures chapter 3
2:34:12 Imagery Capture and Tether Configuration
2:35:57 Tether Management and Bag Stowage Procedures
2:40:09 BRT Positioning and Reflector Inspection
2:43:08 Canadarm2 Repositioning and EVA Setup chapter 1
2:45:36 Planar Reflector Staging and Arm Reconfiguration
2:49:12 Spacewalk 99 Bolt Removal and Camera Swap chapter 2
2:51:12 Retroreflector Bolt Release and Station Positioning
2:52:29 Camera Warnings and Retroreflector Replacement
2:55:41 ISS Spacewalk Retroreflector Replacement chapter 1
2:57:57 Canadarm2 Positioning for Camera Swap
3:01:24 HD Camera Installation and Bolt Removal chapter 4
3:03:19 HD Camera Bolt Installation Procedure
3:06:04 Cable Routing and Wire Tie Removal
3:09:42 Retroreflector Removal and Bolt Adjustment
3:11:23 Camera Removal and Reflector Bolt Release
3:13:52 Removing Failed HD Camera and Planar Reflector chapter 2
3:15:33 Demating Cables and Storing Failed Hardware
3:18:55 Installing Spare Planar Reflector
3:21:35 Troubleshooting HD Camera Removal chapter 2
3:23:39 Reflector Installation and Canadarm2 Repositioning
3:25:01 Troubleshooting Stuck Camera Interface
3:29:47 Troubleshooting HD Camera Removal chapter 1
3:34:56 HD Camera Removal Execution
3:36:41 HD Camera and Reflector Installation Procedures chapter 2
3:39:10 Bolt Installation and Camera Inspection
3:41:01 HD Camera and Reflector Installation
3:43:17 Retroreflector Bolt Installation and Cable Management chapter
3:49:11 Planar Reflector Installation and Cable Mating chapter 2
3:51:14 Cable Inspection and Positioning Adjustments
3:54:00 Camera Installation and Pitch Adjustments
3:57:00 Spacewalk Procedures and Equipment Checks chapter 2
3:59:21 Photographing MLI Peeling and Cable Routing
4:01:09 Glove HAP and Equipment Verification
4:02:57 Cable Routing and Positioning Adjustments chapter 1
4:05:48 Cable Routing and Clamp Verification
4:08:01 Spacewalk Procedures and Equipment Management chapter 1
4:11:28 Spacewalk Coordination and Equipment Staging
4:15:58 Spacewalk Maintenance and Camera Installation chapter 2
4:19:25 Canadarm2 Camera Installation and Retrieval
4:22:14 Camera Replacement and Airlock Procedures
4:28:06 Spacewalk Egress and Airlock Coordination chapter 2
4:32:20 Airlock Coordination and Equipment Transfer
4:34:22 Airlock Coordination and Bag Transfer
4:36:56 ISS Microorganism Investigation and AMS Prep chapter 1
4:39:47 Transferring Equipment Bags for AMS Prep
4:43:02 Spacewalk 99 Pre-Egress Checks and Procedures chapter 1
4:46:59 AMS Maneuver and Equipment Checks
4:50:36 AMS Work Site Setup and Microbial Sampling chapter 2
4:52:36 Canadarm2 Maneuvering and Microbial Sampling Setup
4:55:30 Exposing Swab Tips to Space Environment
4:59:24 Airlock Thermal Cover Swabbing Procedure chapter 1
5:03:15 Airlock Thermal Cover Swabbing Instructions
5:06:31 Microbe Sampling and AMS Radiator Maintenance chapter 2
5:09:55 AMS Radiator Bolt Tightening
5:11:50 Spacewalk Positioning and GCA Adjustments
5:14:13 AMS Radiator Bolt Tightening and MCU Sampling chapter 1
5:17:31 MCU Swabbing and Canister Lock Verification
5:20:08 AMS Bolt Torquing and Radiator Prep chapter 1
5:25:20 AMS Torquing and Radiator Prep
5:29:39 ISS Spacewalk Bolt Torquing and Equipment Relocation chapter 2
5:31:08 Tether Management and AMS Bolt Torquing
5:33:10 APFR Relocation and Bolt Verification
5:40:48 AMSS Bolt Removal and Tool Procedures chapter 2
5:45:28 Spacewalk Procedures and Task Updates
5:47:09 Fastener Removal and Tool Management
5:50:01 Spacewalk Socket Swap and AMS Installation chapter 1
5:55:52 AMS Anchor Guide Installation and Safety Checks
5:58:47 Installing Guide Studs and Connector Tools chapter 1
6:02:21 Troubleshooting Guide Stud Installation and Connector Setup
6:08:42 AMS Connector Installation Challenges chapter 2
6:10:58 Spacewalk Safety Warnings and Repositioning
6:12:41 Axial Pressure and Force Generation Issues
6:14:42 Installing Power and Thermal Jumpers chapter 1
6:17:35 Troubleshooting and Replacing Torque Device
6:22:41 Spacewalk Troubleshooting and Cable Installation chapter 2
6:26:51 Canadarm2 Mirror Adjustment and Cable Clamping
6:28:22 Cable Routing and Safety Checks
6:30:39 AMS Anchor Guide Stud Installation Challenges chapter 5
6:33:00 Jumper Connection Verification and FOD Check
6:35:12 Jumper Wire Tie and Safety Tether Confirmation
6:40:10 Crew Lock Bag Inventory and Troubleshooting
6:42:52 Node Two Retroreflector Replacement
6:44:28 Tool Retrieval and Inventory Verification
6:48:04 Spacewalk Procedures and Safety Checks chapter 1
6:50:45 Shoulder Safety and Mobility Checks
6:55:15 Canadarm2 Repositioning and APFR Relocation chapter 4
6:57:53 Canadarm2 Maneuvering to Nadir
7:01:28 S-Gantt Replacement and Terminator Crossing
7:04:01 Dragon Freedom Docking and GCA Prep
7:07:05 Astronaut Egress from Quest Airlock
7:09:35 Aft Positioning and Apfr Reconfiguration chapter 1
7:13:40 Apfr Ingress Aid and Positioning
7:16:24 Spacewalk Safety and APFR Relocation chapter 2
7:20:08 APFR Removal and Ingress Procedures
7:22:01 APFR Relocation Safety Assessment
7:26:15 APFR Installation and Return Procedures chapter 4
7:30:51 Spacewalk Task Completion and Updates
7:33:27 APFR Installation and Airlock Return
7:36:44 Ingress Aid Deployment and Return
7:41:09 Spacewalk Duration and Equipment Retrieval
7:45:21 Troubleshooting spacesuit mobility and tether issues chapter 5
7:48:15 Resolving Tether Retraction and Bag Placement
7:50:54 Spacesuit thermal cover and arm troubleshooting
7:53:23 Resolving spacesuit joint mobility and glove heater issues
7:57:15 Assessing spacesuit cable tension and routing
7:59:48 Resolving shoulder cable friction and mobility
8:02:57 Spacewalk 99 Procedures and Milestones chapter 1
8:07:28 Spacewalk Tasks and Equipment Updates
8:10:25 Spacewalk handover and airlock reentry procedures chapter 2
8:13:44 Airlock reentry and hatch closure
8:15:56 Thermal cover and airlock reentry procedures
8:18:12 Post-EVA Repressurization and Crew Reflections chapter 1
8:21:27 EVA Completion and Hatch Securing Procedures
8:24:48 Spacewalk Ingress and Repressurization Procedures chapter 1
8:29:08 Spacewalk Completion and Task Summary
8:32:35 Spacewalk 99 Post-EVA Procedures and Statistics chapter 2
8:41:07 Airlock Repressurization and Safety Checks
8:45:02 Pressure Equalization and Spacewalk Tasks
8:49:12 ISS Spacewalk 99 Post-EVA Procedures chapter 2
8:53:52 Post-EVA Suit Removal Procedures
9:00:57 ISS Spacewalk 99 Task Recap

Transcript

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