Rocket family
H-II
Japan1994 to 2025The H-II rockets are Japan's main liquid-hydrogen launchers, built by Mitsubishi Heavy Industries from Japanese technology. H-II flies from 1994, and the cheaper, more reliable H-IIA becomes Japan's workhorse until 2025, launching the Kaguya lunar orbiter, Hayabusa2 and the SLIM lunar lander, while the larger H-IIB carries the Kounotori cargo ships to the International Space Station.
- Launches
- 66
- Success rate
- 95%
- 2 failures · 1 partial
- First flight
- 1994
- H-II
- Last flight
- 2025
- H-IIA 202
- Rocket types
- 6
Launches per year
Show as table
| Year | Launches |
|---|---|
| 1994 | 2 |
| 1995 | 1 |
| 1996 | 1 |
| 1997 | 1 |
| 1998 | 1 |
| 1999 | 1 |
| 2001 | 1 |
| 2002 | 3 |
| 2003 | 2 |
| 2005 | 1 |
| 2006 | 4 |
| 2007 | 2 |
| 2008 | 1 |
| 2009 | 3 |
| 2010 | 2 |
| 2011 | 3 |
| 2012 | 2 |
| 2013 | 2 |
| 2014 | 4 |
| 2015 | 4 |
| 2016 | 3 |
| 2017 | 6 |
| 2018 | 4 |
| 2019 | 1 |
| 2020 | 4 |
| 2021 | 2 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 1 |
H-II rockets
| Rocket | Flown | Launches | Success rate | Height | Payload to LEO |
|---|---|---|---|---|---|
| H-II | 1994 to 1999 | 7 | 71% | 49 m | 10,060 kg |
| H-IIA 202 | 2001 to 2025 | 35 | 100% | 53 m | 10,000 kg |
| H-IIA 2024 | 2002 to 2008 | 7 | 86% | 57 m | 12,500 kg |
| H-IIA 2022 | 2005 to 2007 | 3 | 100% | 53 m | 11,250 kg |
| H-IIA 204 | 2006 to 2021 | 5 | 100% | 53 m | 15,000 kg |
| H-IIB 304 | 2009 to 2020 | 9 | 100% | 56.6 m | 16,500 kg |