HTV-X1

Mission

HTV-X1 on H3-24. Sun 26 Oct 2025, 00:00:15 UTC. Reported outcome: Success. Launch site: Yoshinobu Launch Complex LP-2. Source: Launch Library 2.

First flight of the upgraded Japanese HTV-X spacecraft designed to resupply the International Space Station.

Mission type

Resupply

Orbit

Low Earth Orbit

Programmes: International Space Station

Launch timeline

Times are relative to liftoff.

1. T-0Sun 26 Oct, 02:00 CEST

   Liftoff

   First upwards movement of the rocket

2. T+1 min 58 sSun 26 Oct, 02:02 CEST

   Booster Separation

   The side boosters are separated from the launcher.

3. T+2 min 55 sSun 26 Oct, 02:03 CEST

   Fairing Separation

   Separation of the payload fairing

4. T+4 min 52 sSun 26 Oct, 02:05 CEST

   MECO

   Cut-off of the main engine

5. T+4 min 59 sSun 26 Oct, 02:05 CEST

   Stage 2 Separation

   Separation of the second stage from the first

6. T+5 min 12 sSun 26 Oct, 02:05 CEST

   SES-1

   First start of the second engine

7. T+13 min 45 sSun 26 Oct, 02:14 CEST

   SECO-1

   First cut-off of the second engine

8. T+14 min 13 sSun 26 Oct, 02:14 CEST

   Payload Separation

   Final deployment of the payload from the rocket

Slip history

Changes recorded by Space Right Now

No changes since we started tracking on Sat 10 Oct 2026, 11:17 UTC.

Launch pad

Yoshinobu Launch Complex LP-2

Tanegashima Space Center, Japan (JP)

Coordinates: 30.400938, 130.97564