@techreport{oai:jaxa.repo.nii.ac.jp:00001812,
 author = {三浦, 昭 and 山本, 幸生 and 吉川, 真 and Miura, Akira and Yamamoto, Yukio and Yoshikawa, Makoto},
 month = {Mar},
 note = {2015年12月3日の小惑星探査機「はやぶさ2」地球スイングバイにおいて, 各地点で観測された「はやぶさ2」の見かけの等級の変化は, 各観測地点と「はやぶさ2」との距離のみの簡単な仮定では説明の難しいものであった. 本稿においては, 「はやぶさ2」の見かけの等級をCG技術に基づいたモデリングとレンダリングによって推定した. その手法は, 光度変化のあらましを推定するには有用である一方で, 精密な推定のためには, なお一層の検討が必要であることが明らかとなった., On December 3, 2015, an Earth Swing-by operation of the asteroid explorer 'Hayabusa2' was performed. Several observatories successfully measured the brightness of 'Hayabusa2'. The variation of the apparent magnitude of 'Hayabusa2' measured during the swing-by is hard to explain using a simple hypothesis based on the distances of the observatories and 'Hayabusa2'.On December 3, 2015, an Earth Swing-by operation of the asteroid explorer 'Hayabusa2' was performed. Several observatories successfully measured the brightness of 'Hayabusa2'. The variation of the apparent magnitude of 'Hayabusa2' measured during the swing-by is hard to explain using a simple hypothesis based on the distances of the observatories and 'Hayabusa2'. In this paper, apparent magnitude of 'Hayabusa2' is estimated using modeling and rendering techniques based on computer graphics. The method is found to be useful to roughly estimate the variation of the magnitude, while more consideration is required to perform precise estimation., 形態: カラー図版あり, Physical characteristics: Original contains color illustrations, 資料番号: AA1730023006, レポート番号: JAXA-RR-17-009},
 title = {「はやぶさ2」地球スイングバイに係る見かけの等級の変化推定},
 year = {2018}
}