activity
20072022
most citedThermo-physical properties of 162173 (1999 JU3), a potential flyby and rendezvous target for interplanetary missions

93 citations · 514 across the 20 of their papers we have counts for

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14 papers · 1 filter

astro-ph.EP2022★ 7 cited

WISE/NEOWISE Multi-Epoch Imaging of the Potentially Geminid-related Asteroids: (3200) Phaethon, 2005 UD and 1999 YC

Toshihiro Kasuga, Joseph R. Masiero

We present space-based thermal infrared observations of the presumably Geminid-associated asteroids: (3200)Phaethon, 2005 UD and 1999 YC using WISE/NEOWISE. The images were taken a…

astro-ph.EP2022★ 13 cited

Video Observations of Tiny Near-Earth Objects with Tomo-e Gozen

Jin Beniyama, Shigeyuki Sako, Ryou Ohsawa +20

We report the results of video observations of tiny (diameter less than 100 m) near-Earth objects (NEOs) with Tomo-e Gozen on the Kiso 105 cm Schmidt telescope. A rotational period…

astro-ph.EP2020★ 5 cited

Nature of bright C-complex asteroids

Sunao Hasegawa, Toshihiro Kasuga, Fumihiko Usui +1

Most C-complex asteroids have albedo values less than 0.1, but there are some high-albedo (bright) C-complex asteroids with albedo values exceeding 0.1. To reveal the nature and or…

astro-ph.EP2020★ 6 cited

Relationship between Radar Cross Section and Optical Magnitude based on Radar and Optical Simultaneous Observations of Faint Meteors

Ryou Ohsawa, Akira Hirota, Kohei Morita +40

Radar and optical simultaneous observations of meteors are important to understand the size distribution of the interplanetary dust. However, faint meteors detected by high power l…

astro-ph.EP2019★ 15 cited

New constraint on the atmosphere of (50000) Quaoar from a stellar occultation

Ko Arimatsu, Ryou Ohsawa, George L. Hashimoto +35

We report observations of a stellar occultation by the classical Kuiper belt object (50000) Quaoar occurred on 28 June 2019. A single-chord high-cadence (2 Hz) photometry dataset w…

astro-ph.EP2019★ 1 cited

A Fireball and Potentially Hazardous Binary Near-Earth Asteroid (164121) 2003 YT

Toshihiro Kasuga, Mikiya Sato, Masayoshi Ueda +3

We present a fireball detected in the night sky over Kyoto, Japan on UT 2017 April 28 at by the SonotaCo Network. The absolute visual magnitude is $M…