Photometry of asteroids: Lightcurves of 24 asteroids obtained in 1993–2005

Chiorny, V. G.; Shevchenko, V. G.; Krugly, Yu. N.; Velichko, F. P.; Gaftonyuk, N. M.

doi:10.1016/j.pss.2007.01.001

Cited by 2 publications

(2 citation statements)

References 19 publications

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“…Photometric observations of Cava started in 1975 with the work of Lagerkvist et al (1978) and continued in Harris & Young (1980), Young & Harris (1985), Harris et al (1999), and Chiorny et al (2003Chiorny et al ( , 2007. Most of these papers agreed in the synodic period value being close to 8.178 h. During our modelling, we found three short but noisy lightcurves, which prevented us from finding a best-fit solution.…”

Section: (505) Cavamentioning

confidence: 71%

Photometry and models of selected main belt asteroids

Marciniak

Bartczak

Santana-Ros

et al. 2012

A&A

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Context. The shapes and spin states of asteroids observed with photometric techniques can be reconstructed using the lightcurve inversion method. The resultant models can then be confirmed or exploited further by other techniques, such as adaptive optics, radar, thermal infrared, stellar occultations, or space probe imaging. Aims. During our ongoing work to increase the set of asteroids with known spin and shape parameters, there appeared a need for displaying the model plane-of-sky orientations for specific epochs to compare models from different techniques. It would also be instructive to be able to track how the complex lightcurves are produced by various asteroid shapes. Methods. Basing our analysis on an extensive photometric observational dataset, we obtained eight asteroid models with the convex lightcurve inversion method. To enable comparison of the photometric models with those from other observing/modelling techniques, we created an on-line service where we allow the inversion models to be orientated interactively. Results. Our sample of objects is quite representative, containing both relatively fast and slow rotators with highly and lowly inclined spin axes. With this work, we increase the sample of asteroid spin and shape models based on disk-integrated photometry to over 200. Three of the shape models obtained here are confirmed by the stellar occultation data; this also allowed independent determinations of their sizes to be made. Conclusions. The ISAM service can be widely exploited for past and future asteroid observations with various, complementary techniques and for asteroid dimension determination.

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Section: (505) Cavamentioning

confidence: 71%

Photometry and models of selected main belt asteroids

Marciniak

Bartczak

Santana-Ros

et al. 2012

A&A

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“…For our dataset of absolute magnitudes, we used data collected at the Institute of Astronomy of V. N. Karazin Kharkiv National University within the long-term observational programme to study asteroid magnitude-phase curves (Shevchenko et al 2010(Shevchenko et al , 2012(Shevchenko et al , 2014a(Shevchenko et al , 2016Slyusarev et al 2012). We also used some observational data obtained within several other programmes (Belskaya et al 2010;Chiorny et al 2007Chiorny et al , 2011Dotto et al 2009;Hahn et al 1989;Kaasalainen et al 2004;Lagerkvist et al 1998;Michalowski et al 1995;Mohamed et al 1994Mohamed et al , 1995Oszkiewicz et al 2021;Shevchenko et al 1992Shevchenko et al , 2003Shevchenko et al , 2009Shevchenko et al , 2014bShevchenko et al , 2021Velichko et al 1995;Wilawer et al 2022). All magnitudes were measured in the Johnson V band and extrapolated to zero phase angle using the HG 1 G 2 system proposed by Muinonen et al (2010), with some modifications presented by Penttilä et al (2016).…”

Section: Kharkiv Asteroid Absolute Magnitude Databasementioning

confidence: 99%

Kharkiv database of asteroid absolute magnitudes: Comparative analysis with other datasets

Shevchenko

Belskaya

Slyusarev

et al. 2022

A&A

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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 HG 1 G 2 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.

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Photometry of asteroids: Lightcurves of 24 asteroids obtained in 1993–2005

Abstract: The results of 1993-2005 photometric observations for 24 main-belt asteroids: 24 Themis,

Cited by 2 publications

References 19 publications

Photometry and models of selected main belt asteroids

Photometry and models of selected main belt asteroids

Kharkiv database of asteroid absolute magnitudes: Comparative analysis with other datasets

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