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Outlier Identification and Characterization of Asteroids in the Solar System Notification Alert Processing System (SNAPS)

Presentation #411.10 in the session Asteroids: Main Belt (Poster)

Published onOct 23, 2023
Outlier Identification and Characterization of Asteroids in the Solar System Notification Alert Processing System (SNAPS)

Large-scale surveys of asteroid properties make it possible to identify rare cases that may provide important clues about the formation and evolution of the Solar System. We present results of our search for individual outlying asteroids – objects that exhibit interesting behavior and change over time. This work was accomplished using the Solar System Notification Alert Processing System (SNAPS) (Trilling et al. 2023). SNAPS receives and processes data from all sky surveys and acts as a broker for the solar system. SNAPS is an official Legacy Survey of Space and Time (LSST) downstream broker. SNAPShot1 (per Trilling et al. 2023), the first data release, ingested Zwicky Transient Facility (ZTF) alert data from 2018 July to 2020 May. SNAPShot1 accounts for 31,693 asteroids with a total of 5,458,459 observations. This allows for the investigation of the evolution and phenomena of these objects over a 22 month period. We investigate asteroids that exhibit uncommon and interesting behavior, which will help us better understand the evolution of our solar system on a larger scale. In particular, we identify and explain the patterns of outlier objects whose absolute magnitudes show variation over time. This is an example of the science that is made possible by the SNAPS broker. The insights provided by our analysis of the ZTF catalog will be critical for the automated identification of exotic objects observed by the Vera C. Rubin Observatory and will be incorporated into the SNAPS software infrastructure. This work is supported in part by the NAU REU program under NSF grant 1950901.

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