SS-520
This version is a two-stage sounding rocket or three-stage orbital rocket, which uses S-520 as the first stage. Unlike the previous S-Series rockets, the SS-520 is intended to demonstrate how small an orbital launch vehicle can be.
Missions: 2
Successes: 1
Partial Failures: 0
Failures: 1
Success Streak: 1
Success Rate: 50.0%