Asteroids with Satellites Database--Johnston's Archive

(4370) Dickens

compiled by Wm. Robert Johnston
last updated 27 November 2021

--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: 2.1961957392 AU
orbital period P: 3.2547285181 yr
(= 1188.7895912 d)
eccentricity e: 0.199523604
perihelion distance q: 1.758002851 AU
aphelion distance Q: 2.6343886277 AU
inclination i: 2.5586408°
argument of perihelion ω: 153.2174657°
ascending node Ω: 218.3174839°
mean anomaly M: 21.2963801°
perihelion passage TP: 2021 Nov 11.675236
Epoch: 2022 Jan 21
data arc: 1951-2021 (2572 obs.)
Earth MOID: 0.759014 AU
Jupiter Tisserand invariant TJ: 3.641


orbital data, secondary:
semimajor axis as: 6.6 km [*E]
separation/primary radius as/rp:3.7 [*E]
separation/Hill radius as/rH:0.013 [*E]
orbital period Ps: 0.7508 ± 0.0004 d [B21j]
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 14.37 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 3.78 ± 0.2 km [M**]
geometric albedo: 0.196 ± 0.047 [M**]
color index U-B: ?
color index B-V: ?
taxonomic type: ?
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 500 km [*E]

other data, primary:
diameter dp: 3.58 ± 0.19 km [*D]
rotation period RPp: 2.7601 ± 0.0002 h [B21j]
amplitude in mag., rotational ΔM: 0.09 [B21j]
amplitude in mag., mutual events ΔM:0.18 ±0.06 [B21j]
pole direction Β, λ: ? , ?


other data, secondary:
diameter ds: 1.22 ± 0.10 km [*D]
axial ratios a/b, b/c:1.3;? [B21j]
diameter ratio ds/dp: 0.34 ± 0.02 [B21j]
component mag. difference ΔM: 2.34 ± 0.13 [*D]
rotation period RPs: 18.02 ± 0.01 h [B21j]

-- (4370) Dickens --discovery and notes:

Primary discovered 1982 Sep 22 from Flagstaff, Arizona, USA by E. Bowell. Alternate designation(s): 1982 SL, 1969 TZ3, 1979 XD1. Linked to prediscovery observations from 1951 Feb 04. Permanent number assigned 1990 Feb 09.

Named 1990 Jun 08 for Charles Dickens (1812-1870) [MPC016445].

Companion discovered 2021 Sep 12 by V. Benishek, P. Pravec, and R. Durkee using lightcurve observations from Sopot Observatory, Serbia; Shed of Science South Observatory, Pontotoc, Texas, USA. Announced 2021 Nov 21 [B21j].

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:


© 2021 by Wm. Robert Johnston.
Last modified 27 November 2021.
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