RAISE-3 (RApid Innovative payload demonstration Satellite-3) was a satellite for on-orbit demonstrations of 7 demonstration components and equipment selected by public solicitation. The satellite was to be operated in response to requests from the demonstration theme proposers, and will provide experimental data of the demonstration devices and environmental data during the experiments. The launch is also carrying QPS-SAR 3 & 4 radar Earth observation satellites for iQPS, and 5 cubesats for various Japanese institutions & companies.