| Issue |
A&A
Volume 666, October 2022
|
|
|---|---|---|
| Article Number | A190 | |
| Number of page(s) | 5 | |
| Section | Catalogs and data | |
| DOI | https://doi.org/10.1051/0004-6361/202243977 | |
| Published online | 28 October 2022 | |
Kharkiv database of asteroid absolute magnitudes: Comparative analysis with other datasets★
1
Department of Astronomy and Space Informatics of V. N. Karazin Kharkiv National University,
4 Svobody Sq.,
Kharkiv
61022, Ukraine
e-mail: shevchenko@astron.kharkov.ua
2
Institute of Astronomy of V. N. Karazin Kharkiv National University,
Sumska Street 35,
Kharkiv
61058, Ukraine
3
Astronomical Observatory Institute, Faculty of Physics, A. Mickiewicz University,
Sloneczna 36,
60-286
Poznan, Poland
4
Finnish Geospatial Research Institute FGI,
Vuorimiehentie 5,
02150
Espoo, Finland
5
Department of Physics,
PO box 64,
00014 University of Helsinki, Finland
Received:
8
May
2022
Accepted:
12
September
2022
We present a database of the absolute magnitudes of asteroids named the Kharkiv Asteroid Absolute Magnitude Database (KhAAMD). The database includes a homogeneous set of the absolute magnitudes for about 400 asteroids in the new HG1G2 magnitude system. We performed a comparative analysis of the asteroid absolute magnitudes between the Kharkiv database and other main magnitude databases (MPC, Pan-STARRS, ATLAS, PTF, and Gaia). We show that the Pan-STARRS absolute magnitude dataset has no systematic deviations and is the most suitable for the determination of diameters and albedos of asteroids. For the MPC dataset, there is a linear trend of overestimating the absolute magnitudes of bright objects and underestimating the magnitudes of faint asteroids. The ATLAS dataset has both a systematic overestimation of asteroid magnitudes and a linear trend. We propose equations that can be used to correct for systematic errors in the MPC and the ATLAS magnitude datasets. There are possible systematic deviations of about 0.1 mag for the Gaia and PTF databases but there are insufficient data overlapping with our data for a definitive analysis.
Key words: minor planets / asteroids: general / methods: observational / techniques: photometric
The catalogue is only available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/666/A190
© V. G. Shevchenko et al. 2022
Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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