Is this an asteroid?

Yep! If you click on the map and follow the “Single Exposures” link, you’ll see that there’s a bright dot in only one of the exposures (624512). If you click the JPL link for that, you’ll see that it’s the asteroid named 1998 XJ38

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Thanks! I looked at the single exposures but didn’t bother to see if it was cataloged. Must have been feeling lazy. thanks again.