H-IIA 204
H-IIA 204 was the higher-thrust configuration with four SRB-A solid rocket boosters and no small strap-on boosters. Five vehicles flew from 2006 through 2021 for heavy geostationary and navigation payloads.
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Identity
- Aliases
- H2A204H-IIA-204
- Family Name
- H-IIA
- Full Name
- H-IIA 204
- Status
- retired
- Type
- rocket
- Variant Name
- 204
Details
- Description
- H-IIA 204 was the higher-thrust configuration with four SRB-A solid rocket boosters and no small strap-on boosters. Five vehicles flew from 2006 through 2021 for heavy geostationary and navigation payloads.
- First Flight Year
- 2,006
- Last Flight Year
- 2,021
- Manufacturer
- Operator
- Parent Vehicle Family
- Propulsion Configurations
- Entries
- Count
- 1
- Placement
- core
- Propulsion System
- Role
- main
- Stage
- first-stage
- Variant Notes
- One exact LE-7A liquid engine on the H-IIA 204 first stage.
- Count
- 4
- Placement
- booster
- Propulsion System
- Role
- booster
- Stage
- first-stage
- Variant Notes
- Four exact SRB-A solid rocket boosters on the enhanced H-IIA 204 configuration.
- Count
- 1
- Placement
- upper
- Propulsion System
- Role
- upper-stage
- Stage
- second-stage
- Variant Notes
- One exact LE-5B engine on the H-IIA 204 second stage.
- Name
- H-IIA 204
- Notes
- Exact enhanced H2A204 propulsion stack: one LE-7A first-stage engine, four SRB-A strap-on solid boosters, and one LE-5B second-stage engine. H-IIA 202 and other H-IIA forms remain separate variants.
- Rocket Specs
- Reusability
- expendable
- Stages Count
- 2
- Strap On Boosters Count
- 4
Links
- Official Url
- https://global.jaxa.jp/projects/rockets/h2a/
Assets & Meta
- Creation Time
- July 14, 2026 at 17:18:19 UTC
- Updated Time
- August 1, 2026 at 10:50:23 UTC
- Image
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