Kagayaki
Also called SorunSAT
Developed by the Tokyo-based information system company Sorun Corporation.
The 15-cm, cube-shaped satellite was built by about 40 students in their free
time after school and on weekends.
Among the design features are an autonomous on-board control system and an
inflatable deployable boom. The mission goals are to measure orbital debris and
observe auroral electric currents.
http://www.sorun.co.jp/e_kagayaki/top.html
sat-index articles
Downlink at 437.375 MHz