The Spitzer MIPSGAL Asteroid Survey

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Scientific paper

We present the first asteroid results from the Spitzer MIPSGAL Legacy program. This program represents the first mid-infrared data set which samples the ecliptic plane to
a consistent depth of 1 mJy at 24 micron for ecliptic latitudes of -0.7 to 14.2 degrees.
Our results include asteroid number counts as a function of ecliptic latitude (ranging from 40 asteroids per square degree at 0 degrees latitude to 10 asteroids per square degree at 15 degrees latitude) and diameter/albedo determinations for all known asteroids in the field (approximately 650). The asteroid number counts will also be compared to other programs by the authors, including an optical survey with the LBT and mid-infrared observations from the Spitzer IRAC instrument.
This work is based on observations made with the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory (JPL), California Institute of Technology under
a contract with NASA. Support for this work was provided by NASA in part through an award issued by JPL/Caltech.

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