NEOROCKS project: surface properties of small near-Earth asteroids
Date Issued
2023
Author(s)
Hromakina, T.
•
Birlan, M.
•
Barucci, M. A.
•
Fulchignoni, M.
•
Colas, F.
•
Fornasier, S.
•
Merlin, F.
•
Sonka, A.
•
Anghel, S.
•
•
Belskaya, I.
•
•
•
the NEOROCKS team
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 1.2m 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 colors for 42 NEOs. Based on the
measured colors we classified 20 objects as S-complex, 9 as C-complex, 9 as
X-complex, 2 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 dataset to 93 objects.
The majority of objects in the dataset with diameters D<500m belongs to a group
of silicate bodies, which could be related to observational bias. Based on MOID
and $\Delta$V 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.
Volume
520
Issue
2
Start page
3143
Issn Identifier
0035-8711
Rights
open.access
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