NEOROCKS project: surface properties of small near-Earth asteroids
Author:
Hromakina T12, Birlan M34, Barucci M A1ORCID, Fulchignoni M1, Colas F3, Fornasier S15ORCID, Merlin F1, Sonka A4, Anghel S346, Poggiali G1ORCID, Belskaya I12, Perna D7, Dotto E7, Dotto E, Banaszkiewicz M, Banchi S, Barucci M A, Bernardi F, Birlan M, Carry B, Cellino A, De Leon J, Lazzarin M, Mazzotta Epifani E, Mediavilla A, Nomen Torres J, Perna D, Perozzi E, Pravec P, Snodgrass C, Teodorescu C, Anghel S, Bertolucci A, Calderini F, Colas F, Del Vigna A, Dell'Oro A, Di Cecco A, Dimare L, Fatka P, Fornasier S, Frattin E, Frosini P, Fulchignoni M, Gabryszewski R, Giardino M, Giunta A, Hromakina T, Huntingford J, Ieva S, Kotlarz J P, La Forgia F, Licandro J, Medeiros H, Merlin F, Pinna F, Polenta G, Popescu M, Rozek A, Scheirich P, Sergeyev A, Sonka A, Valsecchi G B, Wajer P, Zinzi A,
Affiliation:
1. LESIA, Université Paris Cité, Observatoire de Paris, Université PSL, Sorbonne Université, CNRS , F-92190 MEUDON, France 2. V. N. Karazin Kharkiv National University , 4 Svobody Sq., 61022 Kharkiv, Ukraine 3. IMCCE, Observatoire de Paris, CNRS UMRO 8028, PSL Research University , 77 av Denfert Rochereau, F-75014 Paris Cedex, France 4. Astronomical Institute of the Romanian Academy , 5 Cutitul de Argint, 040557, sector 4, Bucharest, Romania 5. Institut Universitaire de France (IUF) , 1 rue Descartes, F-75231 PARIS CEDEX 05, France 6. Faculty of Physics, University of Bucharest , 405, Atomistilor Street, 077125 Magurele, Ilfov, Romania 7. INAF - Osservatorio Astronomico di Roma , Via Frascati 33, I-00078 Monte Porzio Catone, Italy
Abstract
ABSTRACT
We present new results of the observing program which is a part of the NEOROCKS project aimed to improve knowledge on physical properties of near-Earth Objects (NEOs) for planetary defense. Photometric observations were performed using the 1.2-m telescope at the Haute-Provence observatory (France) in the BVRI filters of the Johnson–Cousins photometric systems between June 2021 and April 2022. We obtained new surface colours for 42 NEOs. Based on the measured colours, we classified 20 objects as S-complex, nine as C-complex, nine as X-complex, two as D-type, one object as V-type, and one object remained unclassified. For all the observed objects, we estimated their absolute magnitudes and diameters. Combining these new observations with the previously acquired data within the NEOROCKS project extended our data set to 93 objects. The majority of objects in the data set with diameters D < 500 m belongs to a group of silicate bodies, which could be related to observational bias. Based on MOID and ΔV values we selected 14 objects that could be accessible by a spacecraft. Notably, we find D-type asteroid (163014) 2001 UA5 and A-type asteroid 2017 SE19 to be of particular interest as possible space mission targets.
Publisher
Oxford University Press (OUP)
Subject
Space and Planetary Science,Astronomy and Astrophysics
Cited by
3 articles.
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