Overview
- Flight controllers plan to detach HTV‑X1 from the Harmony module using Canadarm2 on Thursday, March 5, without live coverage of that step.
- NASA will stream the March 6 release starting at 11:45 a.m. EST on NASA+, Amazon Prime, and YouTube, with release targeted for 12 p.m. EST.
- NASA astronaut Chris Williams will monitor HTV‑X1’s systems during undocking and departure from the station.
- After leaving the station, the spacecraft will operate for more than three months as a JAXA science platform before a commanded deorbit to burn up safely.
- HTV‑X1 arrived on October 29, 2025 after an H3 launch and delivered about 12,000 pounds of cargo, a mission JAXA calls a milestone in ISS collaboration.