The satellite's satellite bus was based on the design of Osaka Prefecture University's previous satellite, OPUSAT, which was launched in 2014.[4] OPUSAT-II had a design life of five and a half months.[3]
OPUSAT-II had two main missions. The first mission was to demonstrate high-speed data transmission in amateur radio band. According to the project's website, the satellite communication system's design and the results of the experiment would be made public.[3]
The second mission was a deployment of a large folded structure. A deployable plastic plate was stored inside the satellite, based on Miura fold.[5] The folding method that was tested in this mission took into account the thickness of the plate, unlike the traditional Miura fold. The satellite would optically measure the deployment using a pair of cameras.[3] The team proposes applying this folding method on space-based solar power in the future.[6][7]
Launches are separated by dots ( • ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ). Crewed flights are underlined. Launch failures are marked with the † sign. Payloads deployed from other spacecraft are (enclosed in parentheses).
