J 2025

Spins and shapes of 11 near-Earth asteroids observed within the NEOROCKS project

FATKA, P.; P. PRAVEC; P. SCHEIRICH; P. KUSNIRAK; K. HORNOCH et al.

Základní údaje

Originální název

Spins and shapes of 11 near-Earth asteroids observed within the NEOROCKS project

Autoři

FATKA, P.; P. PRAVEC; P. SCHEIRICH; P. KUSNIRAK; K. HORNOCH; Hana KUČÁKOVÁ; K. E. ERGASHEV; M. SOUZA DE JOODE; O. A. BURKHONOV; S. A. EHGAMBERDIEV; A. GALAD; J. VILAGI; V. REDDY; R. DYVIG; J. G. RIES; C. SNODGRASS; A. DONALDSON; N. PEIXINHO a E. KHALOUEI

Vydání

ASTRONOMY & ASTROPHYSICS, LES ULIS CEDEX A, EDP SCIENCES S A, 2025, 0004-6361

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Francie

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 5.800 v roce 2024

Organizační jednotka

Fyzikální ústav v Opavě

DOI

https://doi.org/10.1051/0004-6361/202450027

UT WoS

001445036300001

EID Scopus

2-s2.0-105000192927

Klíčová slova anglicky

methods: data analysismethods: observational;minor planets; asteroids: individual: near-Earth asteroids

Štítky

RIV26, UF

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 29. 1. 2026 13:07, Mgr. Pavlína Jalůvková

Anotace

V originále

Context. The discovery rate of near-Earth asteroids (NEAs) has steadily increased over the past three decades, yet the physical characterization of these objects has not kept pace. Aims. In an effort to help address this gap, we combined targeted photometric observations, archival data, and sparse photometric data from the Asteroid Terrestrial-impact Last Alert System (ATLAS) survey to extract as much information as possible about NEAs' rotation rates, spin-axis orientations, and shapes. Methods. We selected 17 NEAs with a potential for shape reconstruction and applied the light curve inversion method to derive their sidereal rotation periods, spin-axis directions, and convex shape models. Results. We successfully determined unique spin and shape models for seven NEAs: (5189) 1990 UQ, (6569) Ondaatje, (7025) 1993 QA, (8566) 1996 EN, (86450) 2000 CK33, the Hayabusa2# flyby target (98943) 2001 CC21, and (512245) 2016 AU(8). For an additional four asteroids - (66251) 1999GJ(2), (137199) 1999KX(4), (276786) 2004 KD1, and (495615) 2015 PQ(291) - we constrained their sidereal periods, spin-axis orientations, and in some cases, their shapes. Conclusions. This study highlights the importance of integrating new photometric data with archival dense light curves and sparse observations to improve the physical characterization of NEAs, even when working with suboptimal datasets. We constructed 11 NEA models, contributing to the limited set of a few dozen models derived from space missions, radar observations, and light curve inversions.
Zobrazeno: 10. 2. 2026 10:02