Type CubeSat
Units or mass 6U
Status Was semi-operational until 2022-11-17, 1 day (Connection was established as per official Twitter but low voltage and attitude control issues lead to transmitter being turned off as of 2022-12-23)
Launched 2022-11-16
NORAD ID ? (Not yet catalogued and tracked?)
Deployer CSD (Canisterized Satellite Dispenser) [Planetary Systems Corporation]
Launcher SLS (Space Launch System) (Artemis-1)
Organisation University of Tokyo
Institution University
Entity Academic / Education
Nation Japan
Partners JAXA

Demonstrate the technology for low-cost and very small spacecraft to explore the lunar surface with a landing probe.


3 modules: orbiting module, retro motor module, and surface probe.
Demonstrate the technology for low-cost and very small spacecraft to explore the lunar surface. This technology could open up new possibilities for future missions to inexpensively investigate the surface of the moon.

The CubeSat will also take measurements of the radiation environment near the moon as well as on the lunar surface.

Super-Small Solid Rocket Motor to deaccelerate 2500 m/s just before surface impact. Surface probe will have a semi-hard landing at about 50 m/s.


Tumbling; early signal, no signal now.

Initial detection for 80 minutes then nothing further. RS provided data and plots to project to help assess spacecraft condition and what may have happened.

Failure cause Spacecraft was rotating rapidly and solar cells were opposite direction to the Sun. Transmitter turned off at the end of the pass due to low voltage and has not restored.
Sources [1]
Photo sources [1] [2]
COTS subsystems
  • ADCS - Blue Canyon XACT
Subsystems sources [1]
Keywords Propulsion, Beyond Earth orbit

Last modified: 2023-06-09
Detailed OMOTENASHI entry in the Database
Full Nanosats Database (much more data)

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Created by Erik Kulu


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