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Physical Properties of 299 NEOs Manually Recovered in Over Five Years of NEOWISE Survey Data

Masiero, Joseph R. and Smith, Patrice and Teodoro, Lean D. and Mainzer, A. K. and Cutri, R. M. and Grav, T. and Wright, E. L. (2020) Physical Properties of 299 NEOs Manually Recovered in Over Five Years of NEOWISE Survey Data. Planetary Science Journal, 1 (1). Art. No. 9. ISSN 2632-3338. https://resolver.caltech.edu/CaltechAUTHORS:20200422-094251145

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Abstract

Thermal infrared measurements of near-Earth objects (NEOs) provide critical data for constraining their physical properties such as size. The Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) mission has been conducting an all-sky infrared survey to gather such data and to improve our understanding of this population. While automated routines are employed to identify the majority of moving objects detected by NEOWISE, a subset of objects will have dynamical properties that fall outside the window detectable to these routines. Using the population of known NEOs, we have conducted a manual search for detections of these objects that were previously unreported. We report 303 new epochs of observations for 299 unique NEOs of which 239 have no previous physical property characterization from the NEOWISE Reactivation mission. As these objects are drawn from a list with inherent optical selection biases, the distribution of measured albedos is skewed to higher values than is seen for the diameter-selected population detected by the automated routines. These results demonstrate the importance and benefit of periodic searches of the archival NEOWISE data.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.3847/psj/ab8638DOIArticle
https://arxiv.org/abs/2003.14406arXivDiscussion Paper
ORCID:
AuthorORCID
Masiero, Joseph R.0000-0003-2638-720X
Cutri, R. M.0000-0002-0077-2305
Grav, T.0000-0002-3379-0534
Wright, E. L.0000-0001-5058-1593
Additional Information:© 2020 The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Received 2020 February 26; revised 2020 March 31; accepted 2020 April 1; published 2020 April 22. The research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration (80NM0018D004). This publication makes use of data products from the Wide-field Infrared Survey Explorer, which is a joint project of the University of California, Los Angeles, and the Jet Propulsion Laboratory/California Institute of Technology, funded by the National Aeronautics and Space Administration. This publication also makes use of data products from NEOWISE, which is a joint project of the University of Arizona and Jet Propulsion Laboratory/California Institute of Technology, funded by the Planetary Science Division of the National Aeronautics and Space Administration. This research has made use of data and services provided by the International Astronomical Union's Minor Planet Center. This research has made use of the NASA/IPAC Infrared Science Archive, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration. This research has made extensive use of the numpy, scipy (Virtanen et al. 2020), astropy (Astropy Collaboration et al. 2013, 2018), and matplotlib Python packages.
Group:Infrared Processing and Analysis Center (IPAC)
Funders:
Funding AgencyGrant Number
NASA80NM0018D004
NASA/JPL/CaltechUNSPECIFIED
Subject Keywords:Asteroids ; Near-Earth objects ; Infrared astronomy ; Infrared photometry
Issue or Number:1
Classification Code:Unified Astronomy Thesaurus concepts: Asteroids (72); Near-Earth objects (1092); Infrared astronomy (786); Infrared photometry (792)
Record Number:CaltechAUTHORS:20200422-094251145
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20200422-094251145
Official Citation:Joseph R. Masiero et al 2020 Planet. Sci. J 1 9
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:102714
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:22 Apr 2020 17:18
Last Modified:22 Apr 2020 17:18

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