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ExploreNEOs: the Warm Spitzer near-Earth object characterization survey

Trilling, D. and Benner, L. and Bhattacharya, B. and Bottke, W.F. and Chesley, S. and Delbo, M. and Emery, J.P. and Fazio, G.G. and Hagen, A. and Harris, A.W. and Hora, J.L. and Kistler, J. and Mainzer, A. and Mommert, M. and Morbidelli, A. and Mueller, M. and Penprase, B. and Smith, H. A. and Spahr, T. B. and Stansberry, J. A. and Thomas, C. A. (2013) ExploreNEOs: the Warm Spitzer near-Earth object characterization survey. 2013 IAA Planetary Defense Conference “Gathering for Impact!”, 15-19 Apr 2013, Flagstaff, Arizona, USA.

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Official URL: http://www.iaaconferences.org/pdc2013/?q=ipc

Abstract

We have carried out the Warm Spitzer Near Earth Object (NEO) Characterization survey (ExploreNEOs). We observed some 600 NEOs at 3.6 and 4.5 microns during the period 2009—2012. For each object we derive, through thermal modeling, diameter and albedo. Our results have been presented in a series of papers. To date, we have released almost all of our data and diameter and albedo solutions (Trilling et al. 2010, 2013). We compared the fidelity of our model solutions to “ground truth” data from other sources (Harris et al. 2011). We calculated statistical temperature histories for low delta-V objects (Mueller et al. 2011). We calculated the density of binary objects in our sample (Kistler et al. 2013). We derived the mean albedo for different taxonomic asteroid types (Thomas et al. 2011). We have carried out an extensive ground-based observing campaign and derived new absolute magnitudes for 100 NEOs, and derived an empirical correction from JPL/Horizons values that can be applied to all NEOs (Hagen et al. 2013). We have measured the fraction of NEOs that are likely of cometary origin (Mommert et al. 2013). Forthcoming papers will present additional ancillary ground-based data; a discussion of the probable source regions of NEOs, and the implications thereof; and results for a number of targets that were observed multiple times to understand the impact of phase angle and rotational variation on our model solutions. Together, these results help us constrain the global properties of NEOs and the evolution of the material in near-Earth space.

Item URL in elib:https://elib.dlr.de/83269/
Document Type:Conference or Workshop Item (Lecture)
Title:ExploreNEOs: the Warm Spitzer near-Earth object characterization survey
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Trilling, D.Northern Arizona University, PO Box 6010, Flagstaff, AZ 86011UNSPECIFIED
Benner, L.Jet Propulsion Laboratory, California Institute of Technology, USAUNSPECIFIED
Bhattacharya, B.Claremont McKenna, Pitzer, and Scripps Colleges, USAUNSPECIFIED
Bottke, W.F.Southwest Research Institute, USAUNSPECIFIED
Chesley, S.Jet Propulsion Laboratory, California Institute of Technology, USAUNSPECIFIED
Delbo, M.Observatoire de la Côte d'Azur, Université de Nice Sophia Antipolis, CNRS, BP 4229, 06304 Nice Cedex 4, FranceUNSPECIFIED
Emery, J.P.Univ. Tennesse, Knoxville, USAUNSPECIFIED
Fazio, G.G.Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, MS-65, Cambridge, MA 02138, USAUNSPECIFIED
Hagen, A.Penn State University, USAUNSPECIFIED
Harris, A.W.alan.harris (at) dlr.deUNSPECIFIED
Hora, J.L.Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, MS-65, Cambridge, MA 02138, USAUNSPECIFIED
Kistler, J.Northern Arizona University, PO Box 6010, Flagstaff, AZ 86011UNSPECIFIED
Mainzer, A.Jet Propulsion Laboratory, California Institute of Technology, USAUNSPECIFIED
Mommert, M.michael.mommert (at) dlr.deUNSPECIFIED
Morbidelli, A.Observatoire de la Côte d'Azur, Université de Nice Sophia Antipolis, CNRS, BP 4229, 06304 Nice Cedex 4, FranceUNSPECIFIED
Mueller, M.SRON, The NetherlandsUNSPECIFIED
Penprase, B.Department of Physics and Astronomy, Pomona College, 610 North College Avenue, Claremont, CA 91711, USAUNSPECIFIED
Smith, H. A.Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, MS-65, Cambridge, MA 02138, USAUNSPECIFIED
Spahr, T. B.Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, MS-65, Cambridge, MA 02138, USAUNSPECIFIED
Stansberry, J. A.Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USAUNSPECIFIED
Thomas, C. A.Goddard Space Flight Center, Maryland, USAUNSPECIFIED
Date:April 2013
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:NEO diameters and albedos, Spitzer, surveys, infrared
Event Title:2013 IAA Planetary Defense Conference “Gathering for Impact!”
Event Location:Flagstaff, Arizona, USA
Event Type:international Conference
Event Dates:15-19 Apr 2013
Organizer:International Astronautical Association
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Vorhaben Asteroiden und Kometen (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Leitungsbereich PF
Deposited By: Harris, Prof. Alan
Deposited On:20 Aug 2013 14:41
Last Modified:31 Jul 2019 19:41

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