Mission typeTechnology demonstration
OperatorColleges of technology in Japan
COSPAR ID2021-102H Edit this at Wikidata
SATCAT no.49402Edit this on Wikidata
Spacecraft properties
Spacecraft type2U CubeSat
ManufacturerNational College of Technology, Kochi College
Launch mass2.6 kg (5.7 lb)
Dimensions10 × 10 × 20 cm (3.9 × 3.9 × 7.9 in)
Start of mission
Launch date9 November 2021, 00:55 UTC
RocketEpsilon (No. 5)
Launch siteUchinoura Space Center
Orbital parameters
Reference systemGeocentric orbit (planned)
RegimeSun-synchronous orbit
Perigee altitude560 km (350 mi)
Apogee altitude560 km (350 mi)

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]

See also


  1. ^ a b "初の国立高専開発衛星で超高精度姿勢制御・超小型LinuxマイコンボードによるOBC・木星電波アンテナ展開技術の実証を行う" (in Japanese). JAXA. Retrieved 1 October 2021.
  2. ^ イプシロンロケット5号機による革新的衛星技術実証2号機の打上げ結果について [Launch result of Epsilon rocket No. 5 carrying Innovative Satellite Technology Demonstration-2] (in Japanese). JAXA. 9 November 2021. Retrieved 9 November 2021.
  3. ^ Otsuka, Minoru (24 August 2021). "9機の革新衛星は宇宙で何を実証する? イプシロン5号機で10月に打ち上げへ". Mynavi News (in Japanese). Retrieved 14 September 2021.