J/A+A/666/A190 Kharkiv database asteroid absolute magnitudes (Shevchenko+, 2022)
Kharkiv database of asteroid absolute magnitudes:
Comparative analysis with other datasets.
Shevchenko V.G., Belskaya I.N., Slyusarev I.G., Mikhalchenko O.I.,
Krugly Yu.N., Chiorny V.G., Lupishko D.F., Oszkiewicz D., Kwiatkowski T.,
Gritsevich M., Muinonen K., Penttila A.
<Astron. Astrophys. 666, A190 (2022)>
=2022A&A...666A.190S 2022A&A...666A.190S (SIMBAD/NED BibCode)
ADC_Keywords: Minor planets ; Magnitudes, absolute ; Optical
Keywords: minor planets - asteroids - methods: observational -
techniques: photometric
Abstract:
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 PanSTARRS absolute magnitude
dataset has no systematic deviations and is the most suitable for the
determination of diameters or albedos of asteroids. For the MPC
dataset, there is a linear trend to overestimate the absolute
magnitudes of bright objects and underestimate the magnitudes of faint
asteroids. The ATLAS dataset has both a systematic overestimation of
asteroid magnitudes and a linear trend. We propose the equations,
which can be used to correct for systematic errors in the MPC and the
ATLAS magnitude datasets. There are possible systematic deviations of
about 0.1mag for Gaia and PTF databases but we have insufficient data
overlapping with our data for a definitive analysis.
Description:
We present a dataset of the absolute magnitudes of asteroids obtained
at the Institute of Astronomy of V. N. Karazin Kharkiv National
University that is a part of general database named the Kharkiv
Asteroid Absolute Magnitude Database (KhAAMD). Currently, the dataset
includes a homogeneous set of the absolute magnitudes for about 400
asteroids but the number of objects is constantly increasing. The
absolute magnitudes were obtained using the new HG1G2 system of
magnitudes and considering light curve variations. The range of
magnitudes lie from 3.5 to 16.5mag.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
khaamd.dat 73 356 Kharkiv Asteroid Absolute Magnitude Database
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See also:
B/astorb : Orbits of Minor Planets (Bowell+ 2014-)
Byte-by-byte Description of file: khaamd.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- Number Asteroid number
8- 23 A16 --- Name Asteroid name
25- 26 A2 --- Type Type
28- 32 F5.3 --- Albedo ?=- Albedo
34- 38 F5.1 km Diam ?=- Diameter
40- 45 F6.3 mag H Absolute H magnitude H
47- 51 F5.3 mag e_H Absolute H magnitude H error
53- 56 F4.2 mag G1 ?=- Absolute G1 magnitude
58- 61 F4.2 mag e_G1 ?=- Absolute G1 magnitude error
63- 67 F5.3 mag G2 ?=- Absolute G2 magnitude
69- 73 F5.3 mag e_G2 ?=- Absolute G2 magnitude error
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History:
From Vasilij Shevchenko, shevchenko(at)astron.kharkov.ua
Acknowledgements:
This work has made use of data and/or services provided by the
International Astronomical Union's Minor Planet Center and of NASA's
Astrophysics Data System. This research was partially funded by the
National Research Foundation of Ukraine, project N2020.02/0371
"Metallic asteroids: search for parent bodies of iron meteorites,
sources of extraterrestrial resources" and the Academy of Finland
grants No. 325806, 336546 and 345115. DO was supported by grant number
2017/26/D/ST9/00240 from the National Science Centre, Poland. TK was
supported by grant number 2017/25/B/ST9/00740 from the National
Science Centre, Poland. We are grateful to all the defenders of
Ukraine from the Russian invasion so that we can safely finalize this
article.
(End) Patricia Vannier [CDS] 12-Sep-2022