The Atacama Cosmology Telescope: Release of A databaSe of millimeTeR ObservatioNs of Asteroids Using acT (ASTRONAUT)

TL;DR

The paper introduces ASTRONAUT, a publicly accessible database of millimeter wavelength observations of 170 asteroids from the Atacama Cosmology Telescope, enabling new research in asteroid characterization.

Contribution

It provides the first comprehensive, publicly available millimeter wavelength asteroid flux database from ACT observations, including tools for data analysis.

Findings

Database contains flux measurements for 170 asteroids

Observations cover 2017-2021 at 90, 150, and 220 GHz

Includes example light curves and analysis tools

Abstract

We present A databaSe of millimeTeR ObservatioNs of Asteroids Using acT (ASTRONAUT) hosted on Amazon Web Services, Inc. (AWS) in the form of a public Amazon Simple Storage Service (S3) bucket. This bucket is an Amazon cloud storage database containing flux measurements for a group of asteroids at millimeter (mm) wavelengths. These measurements were collected by the Atacama Cosmology Telescope (ACT) from 2017 to 2021 in frequency bands centered near 90, 150, and 220 GHz. The ASTRONAUT database contains observation times, normalized flux values, and associated error bars for 170 asteroids above a signal-to-noise ratio of 5 for a single frequency band over the stacked co-added maps. We provide an example in generating light curves with this database. We also present a Jupyter notebook to serve as a reference guide when using the S3 bucket. The container and notebook are publicly available in a GitHub repository.