Asteroids with Satellites Database--Johnston's Archive

(3841) Dicicco

compiled by Wm. Robert Johnston
last updated 16 November 2014

--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: 2.273965163 AU
orbital period P: 3.429064945 yr
(= 1252.489626 d)
eccentricity e: 0.159655797
perihelion distance q: 1.91091344 AU
aphelion distance Q: 2.637016883 AU
inclination i: 5.2221333°
argument of perihelion ω: 359.746895°
ascending node Ω: 46.124489°
mean anomaly M: 18.268248°
perihelion passage TP: 2014 Oct 06.442246
Epoch: 2014 Dec 09
data arc: 1973-2014 (1075 obs.)
Earth MOID: 0.920002 AU
Jupiter Tisserand invariant TJ: 3.588

orbital data, secondary:
semimajor axis as: 12 km [*E]
separation/primary radius as/rp:4 [*E]
separation/Hill radius as/rH:0.013 [*D]
orbital period Ps: 0.9012 ± 0.0008 d [F14b]
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 12.9 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 6.25 ± 0.11 km [M11b]
geometric albedo: 0.313 ± 0.034 [M11b]
color index U-B: ?
color index B-V: ?
taxonomic type: S (SMASSII) [JPL]
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 900 km [*D]

other data, primary:
diameter dp: 6.02 km [*D]
rotation period RPp: 3.5949 ± 0.0002 h [F14b]
amplitude in mag., rotational ΔM: ?
pole direction Β, λ: ? , ?

other data, secondary:
diameter ds: >1.67 km [*D]
diameter ratio ds/dp: >0.28 [F14b]
component mag. difference ΔM: <2.8 [*D]
rotation period RPs: ?

-- (3841) Dicicco --discovery and notes:

Primary discovered 1983 Nov 04 from Anderson Mesa Station, Arizona, USA by B. A. Skiff. Alternate designation(s): 1983 VG7, 1973 YM2, 1982 KA2. Linked to prediscovery observations from 1973 Dec 20. Permanent number assigned 1988 Jun 29.

Named 1990 Apr 10 for Dennis di Cicco (1950-) [MPC16246].

Companion discovered 2014 by L. Franco, D. Klinglesmith, P. Pravec using lightcurve observations from Balzaretto Observatory, Italy; Etscorn Campus Observatory, Socorro, New Mexico, USA; Ondrojov Observatory, Czech Republic. Announced 2014 Dec 08 [F14b].

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:

© 2014 by Wm. Robert Johnston.
Last modified 16 November 2014.
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