Orbital launch vehicle

Epsilon

ActiveJapan Japan Aerospace Exploration Agency

The Epsilon rocket is a Japanese solid-fuel rocket designed to launch scientific satellites. It is a follow-on project to the larger and more expensive M-V rocket which was retired in 2006. The Japan Aerospace Exploration Agency (JAXA) began developing the Epsilon in 2007. It is capable of placing a 590 kg payload into Sun-synchronous orbit.

Flights flown6

Success rate83.3%5/6

Maiden flight2013-09-14

Peak year20131 flight

Epsilon is built by Japan Aerospace Exploration Agency of Japan. It first flew on 14 September 2013.

Flight record

6 records

83.3% success rate5 of 6 flown · 1 failed

2013peak 2013 · 1 flight2022

First flight2013-09-14

Latest flight2022-10-12

Failures1

Consecutive successes0

Fastest turnaround336d 23h

Payload

Per mission profile

Sun-synchronous orbit	590kg
Launch cost	$39M

Vehicle

Stages	4
Length	24.4m
Diameter	2.5m
Launch mass	91t
Liftoff thrust	2,271kN
Maiden flight	2013-09-14
Reusable	No

Pads used

1 pad

Mu Center6

Orbits delivered

3 orbits

Sun-Synchronous Orbit3Low Earth Orbit2Elliptical Orbit1

Launch history

6 launches

Date	Mission	Pad	Orbit	Outcome
2022-10-12	Epsilon \| RAISE-3 & others	Mu Center	Sun-Synchronous Orbit	Failure
2021-11-09	Epsilon \| RAISE-2 & others	Mu Center	Low Earth Orbit	Success
2019-01-18	Epsilon \| RAPIS-1 & others	Mu Center	Sun-Synchronous Orbit	Success
2018-01-17	Epsilon \| ASNARO-2	Mu Center	Sun-Synchronous Orbit	Success
2016-12-20	Epsilon \| ERG (ARASE)	Mu Center	Elliptical Orbit	Success
2013-09-14	Epsilon \| Hisaki (SPRINT-A)	Mu Center	Low Earth Orbit	Success

Specifications from Launch Library 2 by The Space Devs, launch records from Space Index. Derived figures are computed here; see sources and method.