[M-ZZ45] Planetary defense - what should we do?

[MZZ45-P02] Development of undiscovered asteroids deteciton application, COIAS

*Seitaro Urakawa¹, Keisuke Sugiura², Natsuho Maeda³, Takafumi Ootsubo⁴, Michitaro Koike⁴, Kumiko Usuda-Sato⁴, Kohei Kitazato⁵, Akihiro Hattori⁵, Kenichi Ito⁶, Kumiko Usuda-Sato⁷, Tomohiko Sekiguchi⁸ (1.Japan Spaceguard Association, 2.Tokyo Institute of Technology, 3.Kobe University, 4.National Astronomical Observatory of Japan, 5.The University of Aizu, 6.The University of Tokyo, 7.National Central of University, 8.Hokkaido University of Education)

Keywords:Asteroids, Planetary Defense, Subaru Telescope, Archive Science

The aim of this study is to detect a large number of undiscovered asteroids with diameters smaller than 1 km and to elucidate the true orbital distribution of asteroids using big data produced by the large-scale survey observations with the Subaru Telescope HSC (Hyper Suprime-Cam). Undiscovered near-Earth objects (NEOs) are also included in the large number of undiscovered asteroids. This study also makes a significant contribution to the planetary defense. Furthermore, this study aims to realize an environment in which not only researchers but also citizens and students can search for unknown asteroids, and to bring educational effects to astronomy and planetary science. To achieve these aims, we have developed COIAS (Come On! Impacting Asteroid), an application that allows citizens and students to detect, measure, and report asteroids. COIAS provides an environment in which a variety of users, including researchers, citizens, and students, can contribute to the planetary defense.