Asteroids with Satellites Database--Johnston's Archive

(3523) Arina

compiled by Wm. Robert Johnston
last updated 30 April 2022

--Orbital and physical data--

(See this page for definitions of quantities; source codes in brackets, see this link for full references; *A, *D, and *E indicate assumed, derived, and estimated values, respectively.)

dynamical type, primary: main belt asteroid

orbital data, primary (osculating elements) [JPL] :
semimajor axis a: 2.3722467178 AU
orbital period P: 3.65375802 yr
(= 1334.5603216 d)
eccentricity e: 0.134491719
perihelion distance q: 2.05319918 AU
aphelion distance Q: 2.6912942556 AU
inclination i: 9.66660074°
argument of perihelion ω: 158.6812276°
ascending node Ω: 55.6555173°
mean anomaly M: 294.9584027°
perihelion passage TP: 2021 Aug 15.116486
Epoch: 2020 Dec 17
data arc: 1930-2021 (2690 obs.)
Earth MOID: 1.04764 AU
Jupiter Tisserand invariant TJ: 3.513

orbital data, secondary:
semimajor axis as: 22 km [*E]
separation/primary radius as/rp:5.0 [*E]
separation/Hill radius as/rH:0.016 [*E]
orbital period Ps: 1.2192 ± 0.0008 d [B21c]
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 12.34 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 9.07 ± 0.10 km [M14c]
geometric albedo: 0.283 ± 0.025 [M14c]
color index U-B: ?
color index B-V: ?
taxonomic type: ?
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 1400 km [*E]

other data, primary:
diameter dp: 8.82 km [*D]
rotation period RPp: 2.6742 ± 0.0001 h [B21c]
amplitude in mag., rotational ΔM: 0.08 [B21c]
amplitude in mag., mutual events ΔM:0.06 [B21c]
pole direction Β, λ: ? , ?

other data, secondary:
diameter ds: >2.12 km [*D]
diameter ratio ds/dp: >0.24
component mag. difference ΔM: <3.1 [*D]
rotation period RPs: ?

-- (3523) Arina --discovery and notes:

Primary discovered 1975 Oct 03 from Nauchnyj, Crimea, Ukraine, USSR by L. Chernykh. Alternate designation(s): 1975 TV2, 1930 HB, 1952 KO, 1957 VC, 1968 UX, 1975 TC7, 1975 VH9. Linked to prediscovery observations from 1930 Apr 21. Permanent number assigned 1986 Dec 16.

Named 1988 Aug 27 for Arina Rodionovna Yakoleva (1758-1828) [MPC013481].

Companion discovered 2021 Mar 02 by Benishek, V., P. Pravec, M. Husarik, M. Pikler, G. Cervak, A. Marchini, R. Papini, F. Salvaggio, W. Cooney, A. Aznar, P. Santos-Sanz, A. Sota, F. J. Aceituno, R. Goncalves, and R. Durkee using lightcurve observations from Sopot Observatory, Serbia; Skalnate Pleso Observatory; Astronomical Observatory of the University of Siena; Wild Boar Remote Observatory, Florence, Italy; Starry Night Observatory, Columbus, Texas, USA; Sierra Nevada Observatory of the IAA; Linhaceira Observatory; Shed of Science South Observatory, Pontotoc, Texas, USA.. Announced 2021 May 27 [B21c].

--Links, more technical:

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--Links to ADS abstracts:

© 2021, 2022 by Wm. Robert Johnston.
Last modified 30 April 2022.
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