Masanori Kanamaru

Thermal Infrared Imaging Instruments for Planetary Defense Missions: Hera and RAMSES

Tatsuaki Okada, Satoshi Tanaka, Naoya Sakatani, Yuri Shimaki et autres

People worldwide are becoming aware of the necessity of Planetary Defense after the Chelyabinsk meteorite air burst event in 2013. Later, the kinetic impact experiment using the NASA Double Asteroid Redirect Test (DART) to asteroid Dimorphos was successfully performed in 2022, whose …

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Thermal infrared imager TIRI onboard Hera and RAMSES missions

Tatsuaki Okada, Satoshi Tanaka, Naoya Sakatani, Yuri Shimaki et autres

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Erratum: “The Yarkovsky Effect on the Long-term Evolution of Binary Asteroids” (2024, ApJL, 968, L3)

Wen-Han Zhou, David Vokrouhlický, Masanori Kanamaru, Harrison Agrusa et autres

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Boulder motions on asteroid Ryugu induced by thruster gas disturbance by Hayabusa2

Naoya Sakatani, Shingo Kameda, Kosuke Kitsunai, Hiroshi Kikuchi et autres

The Thermal InfraRed Imager on Hera

Tatsuaki Okada, Satoshi Tanaka, Naoya Sakatani, Yuri Shimaki et autres

The Thermal InfraRed Imager TIRI onboard the ESA Hera spacecraft has been developed to explore S-type Near-Earth asteroid binary system, 65803 Didymos and its moon Dimorphos, for the purposes of planetary defense and planetary science. TIRI is a thermal imager based on …

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Thermal Infrared Imaging of Small Bodies in Hera and RAMSES Missions

Tatsuaki OKADA, Satoshi TANAKA, Naoya SAKATANI, Yuri SHIMAKI et autres

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Hayabusa2#’s (98943) Torifune flyby in July 2026: Rapid asteroid characterization using an already-flying spacecraft for planetary defense

Masatoshi Hirabayashi, Makoto Yoshikawa, Masahiko Hayakawa, Yuya Mimasu et autres

Planetary defense is an international effort to collaboratively assess and mitigate upcoming threats from small bodies potentially hitting the Earth. The recent success in NASA’s DART, the mission that successfully smashed its spacecraft into the target asteroid Dimorphos, the smaller secondary of …

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Non-Gravitational Effects on a Binary Asteroid: Implications for the Long-term Dynamics of Asteroid Didymos-Dimorphos

Masanori Kanamaru, Wen-Han Zhou

The AIDA planetary defense program, consisting of the U.S. DART and Europe’s Hera missions, is currently underway. In September 2022, the DART spacecraft successfully conducted an impact experiment on Dimorphos, the satellite of the binary asteroid Didymos (Daly et al., 2023). The …

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In-Flight Performance of Hera TIRI and its Future Operation Plan

Tatsuaki Okada, Satoshi Tanaka, Naoya Sakatani, Yuri Shimaki et autres

Introduction: TIRI is an uncooled bolometer based thermal infrared imager with a filter wheel, developed by the Japan Aerospace Exploration Agency (JAXA) for the Hera mission led by the European Space Agency (ESA). Hera is a Planetary Defense mission to rendezvous with …

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First Results from Thermal Infra-Red Imager (TIRI) during Hera’s Mars Swing-By

Özgür Karatekin, Tatsuaki Okada, Naoya Sakatani, J. A. D. L. Blommaert et autres

The European Space Agency’s Hera mission aims to study the Didymos binary asteroid system following NASA’s DART impact experiment. As part of its journey, Hera will perform a swingby of Mars in March 2025 as a way of gathering extra momentum. Mars …

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Thermal Analysis of Rolling Boulders on Asteroid Ryugu

Masanori Kanamaru, T. Okada, N. Sakatani, Yuri Shimaki et autres

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Thermophysical Properties of Aseroid Bolders in Hayabusa2, Hera, and Future Missions

Tatsuaki OKADA, Satoshi TANAKA, Naoya SAKATANI, Yuri SHIMAKI et autres

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