| KOSEN-1 | |
| Mission Type: | Technology demonstration |
| Operator: | Colleges of technology in Japan |
| Cospar Id: | 2021-102H |
| Spacecraft Type: | 2U CubeSat |
| Spacecraft Bus: | CubeSat |
| Manufacturer: | National College of Technology, Kochi College |
| Launch Date: | 9 November 2021, 00:55 UTC |
| Launch Rocket: | Epsilon (No. 5) |
| Launch Site: | Uchinoura Space Center |
| Launch Contractor: | JAXA |
| Orbit Reference: | Geocentric orbit (planned) |
| Orbit Regime: | Sun-synchronous orbit |
| Orbit Inclination: | 97.6° |
| Apsis: | gee |
| Programme: | Innovative Satellite Technology Demonstration-2 |
KOSEN-1 is a technology demonstration satellite that will test the deployment of an antenna for observing radio waves emitted from the planet Jupiter.[1] It is a 2U CubeSat, and carries a antenna. The CubeSat was jointly developed by the National Institute of Technologies in Japan.[1] National Institute of Technologies is known as 'kosen' in Japanese. KOSEN-1 was launched on 9 November 2021 by an Epsilon launch vehicle, as part of the Innovative Satellite Technology Demonstration-2 mission.[2] [3]