Ironically, the secondary payload that launched with Hitomi was a micro-sat which monitors space debris. https://www.frontier.phys.nagoya-u.ac.jp/en/chubusat/c

Ironically, the secondary payload that launched with Hitomi was a micro-sat which monitors space debris. https://www.frontier.phys.nagoya-u.ac.jp/en/chubusat/chubusat_satellite3.html https://www.frontier.phys.nagoya-u.ac.jp/en/chubusat/chubusa...