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Illustration of a KAIROS rocket lifting off from Spaceport Kii, a coastal pad between green hills in Kushimoto, Japan
Image: Space One

Spaceport Kii

by Space One · Spaceports and launch sites

Also found in Launch.

Space One's private launch site in Kushimoto, Wakayama Prefecture, on Japan's southern coast. It is the home pad for every KAIROS launch.

Visit space-one.co.jp

Why it matters

Owning its pad lets Space One set its own launch schedule instead of waiting for slots at government sites.

How the technology works

Space One describes the site in Kushimoto as its launch base for KAIROS missions to sun-synchronous orbit, the orbit it quotes for its standard 150 kg service.

Sources

  1. Space One

Updated Oct 22, 2026 · How we source facts · Suggest a correction