SS-520 Launch History
Every orbital and deep-space launch attempt by the SS-520, year by year, drawn from the GCAT launch catalog.
Data current as of 2026-07-20.
SS-520 made 2 orbital and deep-space launch attempts between 2017 and 2018. Of those, 1 succeeded and 1 failed. The success rate comes to 50 percent. The busiest year was 2017, with 1 flight. The most recent flight in the catalog was in 2018.
2
Launch attempts
1
Successes
1
Failures
50%
Success rate
Launches per year
Successes
Failures
Each bar links to that year's full chronology.
Year by year
Launch sites used
Sites the SS-520 launched from, across every launch in the catalog.
| Site | Country | Launches | Successes | Failures |
|---|---|---|---|---|
| USC | 🇯🇵Japan | 2 | 1 | 1 |
Launch chronology
Every SS-520 launch in the catalog, newest first.