| Mission type | Technology demonstration |
|---|---|
| Operator | Colleges of technology in Japan |
| COSPAR ID | 2021-102H  |
| SATCAT no. | 49402 |
| Spacecraft properties | |
| Spacecraft type | 2U CubeSat |
| Bus | CubeSat |
| Manufacturer | National College of Technology, Kochi College |
| Launch mass | 2.6 kg (5.7 lb) |
| Dimensions | 10 × 10 × 20 cm (3.9 × 3.9 × 7.9 in) |
| Start of mission | |
| Launch date | 9 November 2021, 00:55 UTC |
| Rocket | Epsilon (No. 5) |
| Launch site | Uchinoura Space Center |
| Contractor | JAXA |
| Orbital parameters | |
| Reference system | Geocentric orbit (planned) |
| Regime | Sun-synchronous orbit |
| Perigee altitude | 560 km (350 mi) |
| Apogee altitude | 560 km (350 mi) |
| Inclination | 97.6° |
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 7 m (23 ft) 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]
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