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A comprehensive ground-based observing campaign for Spitzer-observed NEOs

Thomas, C.A. and Trilling, D. and Penprase, B. and Emery, J. and Hora, J. and Mueller, M. and Delbo, M. and Fitzgerald, C. and Hagen, A. and Hickey, D. and Reddy, V. and Bhattacharya, B. and Bottke, W. and Chesley, S. and Fazio, G. and Harris, A.W. and Mainzer, A. and Smith, H and Spahr, T and Stansberry, J.A. (2009) A comprehensive ground-based observing campaign for Spitzer-observed NEOs. In: Bulletin of the American Astronomical Society, 41 (3). AAS. American Astronomical Society, DPS meeting #41, 04 Oct - 09 Oct 2009 , Puert Rico, USA.

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A Warm Spitzer survey of approximately 700 near-Earth objects (NEOs) has been started to derive albedos and diameters of the numerous small bodies. We present a ground-based NEO observation program designed to complement the Spitzer data. By using a variety of observational techniques, we aim to obtain optical magnitudes, lightcurves and compositional information for many of these objects. We have begun a program to obtain high-quality optical magnitudes of all 700 Spitzer targets, using a variety of telescope facilities with a range of apertures (from 0.36 m to 8 m). For a subset of our targets, we will also obtain lightcurves, which will be used as a proxy for the larger sample. We plan to obtain spectra of 250 objects from the Spitzer NEO sample and broadband spectrophotometric measurements of another 100. These spectroscopic results will allow us to derive compositions for nearly half our sample and act as a ground-truth for the larger, complete sample. Observations are already scheduled on the NASA Infrared Telescope Facility (SpeX as well as MIRSI--which will be used to confirm our Spitzer thermal observations and modeling), NOAO SMARTS telescopes, the Las Campanas 1-meter and several smaller telescopes. We will continue to expand the range of facilities used, matching aperture with target brightness. This catalog of objects will serve as a reference sample for a wide variety of future NEO studies.

Document Type:Conference or Workshop Item (Paper)
Title:A comprehensive ground-based observing campaign for Spitzer-observed NEOs
AuthorsInstitution or Email of Authors
Thomas, C.A.Northern Arizona Univ., USA
Trilling, D.Northern Arizona Univ., USA
Penprase, B.Pomona College, USA
Emery, J.University of Tenessee, USA
Hora, J.Harvard-Smithsonian Center for Astrophysics, USA
Mueller, M.University of Arizona, USA
Delbo, M.Observatoire de la Côte d'Azur, France
Fitzgerald, C.University of Colorado, USA
Hagen, A.Harvey Mudd College, USA
Hickey, D.Colby College, USA
Reddy, V.University of North Dakota, USA
Bhattacharya, B.NASA Herschel Science Center, USA
Bottke, W.Southwest Research Institute, USA
Chesley, S.NASA-JPL, USA
Fazio, G.Harvard-Smithsonian Center for Astrophysics, USA
Mainzer, A.NASA-JPL, USA
Smith, HHarvard-Smithsonian Center for Astrophysics, USA
Spahr, THarvard-Smithsonian Center for Astrophysics, USA
Stansberry, J.A.University of Arizona, USA
Date:September 2009
Journal or Publication Title:Bulletin of the American Astronomical Society
Refereed publication:No
In ISI Web of Science:No
Series Name:Bulletin of the American Astronomical Society
Keywords:Near-Earth objects, asteroids, ground-based observations, Warm Spitzer
Event Title:American Astronomical Society, DPS meeting #41
Event Location:Puert Rico, USA
Event Type:international Conference
Event Dates:04 Oct - 09 Oct 2009
Organizer:American Astronomical Society Division for Planetary Sciences
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben Asteroiden und Kometen (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Asteroids and Comets
Deposited By: Prof. Alan Harris
Deposited On:11 Nov 2009 08:26
Last Modified:11 Nov 2009 08:26

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