23.08.2025
The Japan Aerospace Exploration Agency (JAXA) has said that it will launch the first HTV-X new resupply vehicle to the International Space Station at around 10:58 a.m. on Oct. 21.
The new vehicle is scheduled to be launched on the seventh H3 rocket from the Tanegashima Space Center in Kagoshima Prefecture, JAXA said Friday.
It is a successor to the HTV, or Kounotori, which carried out nine missions until 2020. The new vehicle is about 8 meters long and can carry approximately 5.8 tons of cargo, up from about 4 tons with Kounotori.
Kounotori was launched on an H-2B rocket, an enhanced version of the H-2A rocket, due to its heavier weight compared with regular satellites. For the seventh H3 rocket, the number of solid rocket boosters (SRB) will increase to four from two used in the first to fifth H3 rockets.
In addition, JAXA plans to launch the sixth H3 rocket without SRBs by March 2026.
Quelle: The Japan Times
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Launch Schedule of New unmanned cargo transfer spacecraft1（HTV-X1） aboard the 7th H3 Launch Vehicle (H3 F7)
August 22, 2025 (JST)
Japan Aerospace Exploration Agency
Japan Aerospace Exploration Agency (JAXA) hereby announces the launch schedule of New unmanned cargo transfer spacecraft1（HTV-X1） aboard the 7th H3 Launch Vehicle (H3 F7: Flight No.7) as follows.
(*1) Time will be determined by the updated orbit of the International Space Station (ISS).
(*2) The launch day and time during the launch windows shall be decided by the international coordination for ISS operations.
The launch schedule of the 6th H3 Launch Vehicle (Type 30 Test Vehicle) will be announced once confirmed.
Quelle: JAXA