HTV-X2

HTV-X2
Mission typeISS resupply
OperatorJAXA
Spacecraft properties
Spacecraft typeHTV-X
ManufacturerMitsubishi Heavy Industries
Dimensions8.0 × 4.4 m (26.2 × 14.4 ft)
Start of mission
Launch dateSummer 2026 (planned)
RocketH3-24W
Launch siteTanegashima, LA-Y2
ContractorMitsubishi Heavy Industries
Berthing at ISS
Berthing portHarmony nadir
← HTV-X1
HTV-X3 →

HTV-X2 is the second flight of HTV-X, an uncrewed expendable cargo spacecraft to resupply International Space Station. It is planned to be launched in September 2026.[needs update]

Payload

As of 2021, HTV-X2 was planned to carry JAXA Docking System (JDS) in the unpressurised cargo section, which is compatible with International Docking System Standard (IDSS). It is planned to demonstrate automated docking to the Pressurized Mating Adapter (PMA) at Harmony zenith port after release from berthing at the Harmony nadir port. However, the mission may be carried over to a later flight of HTV-X.

References

  1. ↑ "JAXA HTV-X2". NASA. Retrieved 2026-06-15.
  2. ↑ Sasaki, Takahiro; et al. (26 July 2021). Proximity Operation and Guidance Navigation and Control Design for HTV-X Automated Docking Demonstration Mission. The 31th Workshop on JAXA Astrodynamics and Flight Mechanics 2021. Online.
  3. ↑ Hidaka, Moeko; et al. (26 July 2021). ISS Fly Around Strategy for Automated Docking of HTV-X. The 31th Workshop on JAXA Astrodynamics and Flight Mechanics 2021. Online.
  4. ↑ 渡部 韻 (26 September 2025). 新型宇宙ステーション補給機（HTV-X）運用概要と主な搭載品に関するメディア向けミッション勉強会 (in Japanese). Space Authors Club. Retrieved 9 November 2025.