SS-520

Japanese two-stage rocket that is modified to carry a 3rd stage. It aims to send 140kg payload in a 800km orbit. It measures 10 in height and 50cm in diameter.

- First stage: based on S-520
- Second stage:
- Third stage:

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SS-520 launches

#	Launch id	Payload	Launch Date	Site	Type	Status/Comment (orbit in perigee x apogee x inclination)
1	n/a	Tricom 1	14 Jan 2017	U		failure
2	18016	Tricom 1R	3 Feb 2018 at 05:03 UT	U	3 stage	186 x 2012 km x 30.9°

Notes: in the launch site column U stands for Uchinouora.

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