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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.

H-IIA 204
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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
    • Nested value
    • Nested value
    • Nested value
    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

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Creation Time
July 14, 2026 at 17:18:19 UTC
Updated Time
August 1, 2026 at 10:50:23 UTC

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Search Name
H-IIA 204 H2A204 H-IIA-204