Epsilon
Epsilon familyJapan Aerospace Exploration AgencyActive
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.

Specifications
- Thrust
- 2,271 kN
- Height
- 24.4 m
- Diameter
- 2.5 m
- Launch mass
- 91 t
- Stages
- 4
- Launch cost
- $39M
- LEO capacity
- 1,500 kg
- SSO capacity
- 590 kg
Specifications from Launch Library. Figures the operator has not published are omitted.
Flight record
6flightswith a definitive outcome
83.3%success rate5 of 6
1failureincluding partial failures
0success streakcurrent
First flight September 14, 2013 · latest October 12, 2022
Counted from padside's own launch record, the same basis as the stats page.
Flights per year
- Successful
- Failed
Show the numbers for Epsilon flights per year
| Year | Successful | Failed | Total |
|---|---|---|---|
| 2013 | 1 | 0 | 1 |
| 2014 | 0 | 0 | 0 |
| 2015 | 0 | 0 | 0 |
| 2016 | 1 | 0 | 1 |
| 2017 | 0 | 0 | 0 |
| 2018 | 1 | 0 | 1 |
| 2019 | 1 | 0 | 1 |
| 2020 | 0 | 0 | 0 |
| 2021 | 1 | 0 | 1 |
| 2022 | 0 | 1 | 1 |