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Launch FailureMitsubishi Heavy Industries

H3-22: ALOS-3 (Maiden flight)

Maiden flight of the H3 launch vehicle, carrying the Advanced Land Observing Satellite-3 (ALOS-3). ALOS-3, also known as Advanced Optical Satellite is a successor of the optical mission of the Advanced Land Observation Satellite “DAICHI” (ALOS). The new satellite will achieve improved ground resolution (0.8 m) while observing a wide -swath (70 km) by a larger sensor with higher performance compared to DAICH, and continuously observe not only Japan but also global land areas to construct a system that can swiftly and timely acquire, process and distribute image data. Based on the accumulated data captured in pre- and post-disaster times, the satellite aims to become one of the imperative devices for disaster prevention and preparation activities of countries and municipal governments. Observation data acquired by the satellite is also expected to be useful in various fields such as contributing to the maintenance and updates of precise geospatial information in Japan as well as developing countries, and research and applications on coastal and land environmental monitoring by its observation capabilities.

Failure:2nd stage engine failed to ignite due to electrical circuit failure between vehicle controller and engine igniter at engine ignition.
Tuesday, 7 March 202301:37 UTC
H3-22: ALOS-3 (Maiden flight)

Mission Data

Mitsubishi Heavy Industries
🇯🇵Mitsubishi Heavy IndustriesEst. 1884
Launch VehicleH3-22
Vehicle FamilyH3
Vehicle Record5 of 7 launches (71.4%)
Provider TypeCommercial
Agency Record57 successes / 2 failures (97%)
Success Streak3 consecutive
Mission TypeEarth Science
Target OrbitSun-Synchronous Orbit
Launch PadYoshinobu Launch Complex LP-2
Location🇯🇵 Tanegashima Space Center, Japan JPN
Orbital Launches This Year#32
Agency Launches This Year#2
Launches From This Pad19
Launches From This Site100
Status Note

Either the launch vehicle did not reach orbit, or the payload(s) failed to separate.

About H3-22

The H3 Launch Vehicle is a Japanese expendable launch system. Each H3 booster configuration has a two-digit and a letter designation that indicates the features of that configuration. The first digit represents the number of LE-9 engines on the main stage, either "2" or "3". The second digit indicates the number of SRB-3 solid rocket boosters attached to the base of the rocket, and can be "0", "2" or "4". All layouts of solid boosters are symmetrical. The letter in the end shows the length of the payload fairing, either short "S" or long "L". For example, an H3-24L has two engines, four solid rocket boosters, and a long fairing, whereas an H3-30S has three engines, no solid rocket boosters, and a short fairing.

Launch updates

  1. Apparent failure at 2nd stage ignition;FTS initiated.

  2. Liftoff.

  3. Webcast live

  4. 24 hours slip due to weather.

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  5. March 6 new launch date confirmed by JAXA.

    Source ↗
  6. NET March 6 per local news reports and air-space closure notices.

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  7. NET early March

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  8. Launch aborted post main engine ignition due to 1st stage problem; roll back to VAB required.

  9. 24 hr delay after abort

  10. hold at engine ignition

Launch Site

Yoshinobu Launch Complex LP-2 · 30.4009°N 130.9756°E

Launch data from Launch Library 2 by The Space Devs.