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Enhanced Epsilon

Enhanced Epsilon was the 26-metre, 95.4-tonne operational development of Japan’s Epsilon solid launch vehicle. It increased payload volume and performance and flew as Epsilon-2 through Epsilon-6 from 2016 to 2022; the first four Enhanced vehicles succeeded, while Epsilon-6 failed during ascent.

Enhanced Epsilon
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Identity

Aliases
Epsilon enhanced modelEnhanced Epsilon Launch Vehicle
Family Name
Epsilon
Full Name
Enhanced Epsilon
Status
retired
Type
rocket
Variant Name
Enhanced

Details

Description
Enhanced Epsilon was the 26-metre, 95.4-tonne operational development of Japan’s Epsilon solid launch vehicle. It increased payload volume and performance and flew as Epsilon-2 through Epsilon-6 from 2016 to 2022; the first four Enhanced vehicles succeeded, while Epsilon-6 failed during ascent.
Dimensions
Diameter M
2.6
Height M
26
First Flight Year
2,016
Last Flight Year
2,022
Operator
Parent Vehicle Family
Propulsion Configurations
  • Entries
    • Nested value
    • Nested value
    • Nested value
    Name
    Enhanced Epsilon basic three-stage configuration
    Notes
    JAXA's basic Enhanced Epsilon configuration: SRB-A3 first stage, M-35 second stage, and KM-V2c third stage, without the optional PBS.
  • Entries
    • Nested value
    • Nested value
    • Nested value
    • Nested value
    Name
    Enhanced Epsilon optional PBS configuration
    Notes
    JAXA's optional precision-insertion configuration adds one hydrazine PBS above the exact SRB-A3/M-35/KM-V2c three-stage stack.
Rocket Specs
Liftoff Mass Kg
95,400
Payload Capacity Kg
Leo
1,200
Sso
450
Reusability
expendable
Stages Count
3

Links

Assets & Meta

Creation Time
July 13, 2026 at 10:38:52 UTC
Updated Time
August 1, 2026 at 16:33:00 UTC

Other

Search Name
Enhanced Epsilon Epsilon enhanced model Enhanced Epsilon Launch Vehicle