The Asteroid Catalog Using AKARI IRC Slow-Scan Observations

TL;DR

This paper introduces an asteroid catalog derived from mid-infrared AKARI IRC slow-scan observations, providing new data on asteroid properties and expanding existing asteroid databases.

Contribution

It presents a new asteroid catalog from AKARI IRC data, including geometric albedos and diameters for 88 main-belt asteroids, with about one-third being new asteroidal information.

Findings

Determined albedos and diameters for 88 asteroids.

Identified new asteroidal data in about one-third of observations.

Discovered high-albedo C or D-type asteroids.

Abstract

We present an asteroidal catalog from the mid-infrared wavelength region using the slow-scan observation mode obtained by the Infrared Camera (IRC) on-board the Japanese infrared satellite AKARI. An archive of IRC slow-scan observations comprising about 1000 images was used to search for serendipitous encounters of known asteroids. We have determined the geometric albedos and diameters for 88 main-belt asteroids, including two asteroids in the Hilda region, and compared these, where possible, with previously published values. Approximately one-third of the acquired data reflects new asteroidal information. Some bodies classified as C or D-type with high albedo were also identified in the catalog.