Flight 3

Overview

Destination: Sun-Synchronous Orbit
Mission: Test Flight

Sun-Synchronous Orbit Space One Launch Pad Spaceport Kii, Japan

Third flight of the KAIROS launch vehicle. 4 satellites will be on board: * TATARA-1R * SC-Sat1a * HErO * AETS-1

Updates

Cosmic_Penguin • Feb. 21, 2026, 11:10 p.m.

Delayed into March due to launch site weather forecasts.


Cosmic_Penguin • Dec. 15, 2025, 6:22 a.m.

Added tentative launch window.


Cosmic_Penguin • Dec. 10, 2025, 1:16 p.m.

Added launch.


KAIROS

Family:
Configuration:

4-stage all solid fuel small satellite launch vehicle from the Japanese company Space One, founded in 2018 by Canon Electronics, IHI Aerospace, construction company Shimizu and the government-backed Development Bank of Japan.

See Details
Specifications
  • Stages
    4
  • Length
    18.0 m
  • Diameter
    1.35 m
  • Fairing Diameter
    1.5 m
  • Launch Mass
  • Thrust
Family
  • Name
    KAIROS
  • Family
  • Variant
  • Alias
  • Full Name
    Kii-based Advanced & Instant ROcket System
Payload Capacity
  • Launch Cost
    $9000000
  • Low Earth Orbit
    250.0 kg
  • Geostationary Transfer Orbit
  • Direct Geostationary
  • Sun-Synchronous Capacity
    150.0 kg

Space One

Space One

(Space One)

Founded: 2018 Successes: 0 Failures: 2 Pending: 1

Agency Type:

Space One is a private launch service provider founded in 2018 by Canon Electronics, IHI Aerospace, construction company Shimizu and the government-backed Development Bank of Japan. Their KAIROS launch vehicle is planned for use to launch small satellites

INFO

Spaceport Kii, Japan

Space One Launch Pad


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