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[43.07] Infrared Photometry of Asteroids Observed with the Spitzer Space Telescope

B. Bhattacharya, V.S. Meadows, C. Grillmair, E. Ryan, M. Burgdorf, L. Rebull, S. Tyler, A. Noriega-Crespo (Spitzer Science Center, Caltech), P. Morris (NASA Herschel Science Center, Caltech), E. Tedesco (University of New Hampshire), J. Giorgini (JPL/Caltech)

We present photometric measurements of asteroids observed with the Spitzer Space Telescope. Photometry at 3.6, 4.5, 5.8, and 8.0 microns as well as at 24 microns using the IRAC and MIPS instruments is provided. We discuss time variability of flux for all known and newly identified asteroids in the Spitzer First Look Survey Ecliptic Plane Component. We also consider flux measurements and their implications on size estimation for known asteroids in the publicly available IRAC calibration data. The study presented here also demonstrates the usability of the JPL HORIZONS tool ISPY for identification of known asteroids in Spitzer fields.

This work is based on observations made with the Spitzer Space Telescope, which is is operated by the Jet Propulsion Laboratory, California Institute of Technology under NASA contract 1407. Support for this work was provided by NASA through an award issued by JPL/Caltech.

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Bulletin of the American Astronomical Society, 36 #4
© 2004. The American Astronomical Soceity.