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Preliminary Result of the Occultation by (3200) Phaethon as Observed at Ballarat, California

Ye, Quanzhi and Zhang, Qicheng and Hui, Man-To and Dunham, David (2019) Preliminary Result of the Occultation by (3200) Phaethon as Observed at Ballarat, California. Research Notes of the AAS, 3 (12). Art. No. 188. ISSN 2515-5172. doi:10.3847/2515-5172/ab60aa.

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Near-Earth asteroid (3200) Phaethon is the primary target for the Demonstration and Experiment of Space Technology for INterplanetary voYage, Phaethon fLyby and dUst Science Phaethon fLyby with reUSable probe (DESTINY+) mission, currently being developed by the Japan Aerospace Exploration Agency (JAXA). The size of Phaethon is measured to be about 5–6 km, although numbers derived by different techniques are not in strict agreement: radar measurement suggests an sphere with a diameter of 6.2 km, or a top-shaped figure with equivalent spherical diameter of 5.5 km (Taylor et al. 2019), while two thermophysical models based on infrared data suggest a spherical diameter of 5.1 ± 0.2 km (Hanuš et al. 2016) and 4.6^(+0.2)_(-0.3)  km (Masiero et al. 2019), ≳2σ different from radar data.

Item Type:Article
Related URLs:
URLURL TypeDescription
Ye, Quanzhi0000-0002-4838-7676
Zhang, Qicheng0000-0002-6702-191X
Hui, Man-To0000-0001-9067-7477
Dunham, David0000-0001-7527-4207
Additional Information:© 2019 The American Astronomical Society. Received 2019 November 26; Accepted 2019 December 11; Published 2019 December 12. We thank SwRI for the prediction, as well as H. Pavlov for helpful discussion on the basics of occultation observation. This research used equipment of the Cahill Rooftop Observatory, managed and funded by Department of Astronomy, California Institute of Technology, and is partially supported by a NASA grant.
Group:Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
Subject Keywords:Asteroid occultation; Near-Earth objects; Occultation
Issue or Number:12
Record Number:CaltechAUTHORS:20191216-124218265
Persistent URL:
Official Citation:Quanzhi Ye et al 2019 Res. Notes AAS 3 188
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:100300
Deposited By: Tony Diaz
Deposited On:16 Dec 2019 20:48
Last Modified:16 Nov 2021 17:53

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