Japan · KAIROS
Space One
Japanese small-launch programme operating from Spaceport Kii
What the published evidence says
- The provider presentation lists 250 kg LEO and 150 kg SSO targets.
- The cited presentation is dated 2024; a current payload guide and flight status require confirmation.
Current service readiness is unverified here. Historic design figures are not available inventory.
Provider quotation and programme readiness confirmation required.
Open the original capability source ↗What still needs an answer
- Current flight readiness and a firm service date
- Mission-specific payload performance and integration
- Launch-site eligibility, export requirements and contracting terms
A design target, a suborbital demonstrator, an orbital flight and an available commercial slot are different kinds of evidence. This page does not grant compliance clearance or reserve a launch.
Put the reference in your mission context.
Start with orbit, payload mass and service preference. Confirm the open questions before making a launch decision.
Identity and update coverage
Publisher check unresolved
This publisher has not yet received the latest source-link review. The technical reference keeps its separate review date.
A company-owned announcement source is not connected for this profile. Available news name mentions remain tentative; missing updates do not imply inactivity.
Inspect related updates and their sources →Inspect the evidence
Profile reviewed 2026-10-20Published capabilities and company statements
Company publication · Reviewed 2026-10-20 · Publication date not assertedFollow subsequent announcements at the source
Company publication · Reviewed 2026-10-20 · Publication date not assertedThese are dated references. Company statements, reported tests and independent authorization are different evidence. Follow the original publication for changes.
Recent activity and updates
All updates →Source-linked headlines and observed changes. Choose All updates for new organizations and mission record edits. Editorial review dates stay separate from automatic checks.
Checking the update collection…
Coverage is bounded. Missing activity does not mean a company is inactive.
Follow the provider’s own updates ↗
Check recently updated schedule records →