Asteroids with Satellites Database--Johnston's Archive

(3982) Kastel

compiled by Wm. Robert Johnston
last updated 9 October 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: 2.258873671 AU
orbital period P: 3.39504952 yr
(= 1240.0418488 d)
eccentricity e: 0.219268861
perihelion distance q: 1.763573013 AU
aphelion distance Q: 2.7541743286 AU
inclination i: 5.29777432°
argument of perihelion ω: 51.0412135°
ascending node Ω: 251.8786419°
mean anomaly M: 275.560134°
perihelion passage TP: 2022 Apr 17.858243
Epoch: 2021 Jul 01
data arc: 1930-2021 (3225 obs.)
Earth MOID: 0.753547 AU
Jupiter Tisserand invariant TJ: 3.584

orbital data, secondary:
binary dynamical type:A [L15a]
semimajor axis as: ?
orbital period Ps: ?
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 12.95 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 6.79 ± 0.36 km [M11b]
geometric albedo: 0.201 ± 0.031 [M11b]
color index U-B: ?
color index B-V: ?
taxonomic type: ?
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 930 km [*E]

other data, primary:
diameter dp: 6.79 ± 0.36 km [M11b]
rotation period RPp: 8.4865 h [P16d]
amplitude in mag., rotational ΔM: 0.27 [P16d]
pole direction Β, λ: ? , ?

other data, secondary:
diameter ds: ?
diameter ratio ds/dp: ?
component mag. difference ΔM: ?
rotation period RPs: 5.8358 h [P16d]

-- (3982) Kastel --discovery and notes:

Primary discovered 1984 May 02 from Nauchnyj, Crimea, Ukraine, USSR by L. G. Karachkina. Alternate designation(s): 1984 JP1, 1930 MF, 1947 NE, 1954 RC, 1978 TT5. Linked to prediscovery observations from 1930 Jun 23. Permanent number assigned 1989 Feb 20.

Named 1991 May 28 for Galina Richardovna Kastel' [MPC018306].

Companion discovered 2005 Sep 24 by P. Pravec, P. Kusnirak, L. Kornos, J. Vilagi, D. Pray, R. Durkee, W. Cooney, J. Gross, and D. Terrell using lightcurve observations from Ondrejov Observatory, Czech Republic; Modra Observatory, Slovakia; Coventry, Rhode Island, USA; Shed of Science Observatory, Minneapolis, Minnesota, USA; Sonoita Research Observatory, Sonoita, Arizona, USA. Announced 2005 Oct 01 [P05a].

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:

© 2005-2014, 2021 by Wm. Robert Johnston.
Last modified 9 October 2021.
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