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Asteroids with Satellites Database--Johnston's Archive

(2337) Boubin

compiled by Wm. Robert Johnston
last updated30 April 2022

--Orbital and physical data--

(Seethis page for definitions of quantities; source codes in brackets, seethis 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 axisa:2.594214155 AU
orbital periodP:4.178387725 yr
(= 1526.18494 d)
eccentricitye:0.168570654
perihelion distanceq:2.15690578 AU
aphelion distanceQ:3.031522531 AU
inclinationi:14.3477768°
argument of perihelionω:27.163326°
ascending nodeΩ:37.241717°
mean anomalyM:33.437752°
perihelion passageTP:2018 Dec 06.243905
Epoch:2019 Apr 27
data arc:1955-2018(1370 obs.)
Earth MOID:1.17756 AU
Jupiter Tisserand invariantTJ:3.354

orbital data, secondary:

semimajor axisas:13 km[*E]
separation/primary radiusas/rp:3.3 [*E]
separation/Hill radiusas/rH:0.010 [*E]
orbital periodPs:0.6704± 0.0004d [B19a]
eccentricityes:?
normalized ang. mom.αL:?
other data, system (combined):
absolute mag.H:12.1[MPC]
slope parameterG:(0.15) [*A]
effective diameterdE:8.01± 0.25 km [M12b]
geometric albedo:0.436± 0.073[M12b]
color indexU-B:?
color indexB-V:?
taxonomic type:?
massm:?
densityρ:(1.6 g/cm3) [*A]
Hill radiusrH:1300 km [*E]

other data, primary:

diameterdp:7.91 km [*D]
rotation periodRPp:2.53163± 0.00009h [B19a]
amplitude in mag., rotationalΔM:0.06 [B19a]
amplitude in mag., mutual eventsΔM:0.03 [B19a]
pole directionΒ, λ:?,?

other data, secondary:

diameterds:>1.27km [*D]
diameter ratiods/dp:>0.16 [B19a]
component mag. differenceΔM:>4.0 [*D]
rotation periodRPs:?

--(2337) Boubin --discovery and notes:

Primary discovered1976 Oct 22from Zimmerwald, Switzerlandby P. Wild.Alternate designation(s):1976 UH1, 1955 TV, 1970 HF.Linked to prediscovery observations from 1955 Oct 11.Permanent number assigned 1981 Jan 01.

Named 1990 Dec 02 for the mountain in Bohemia [MPC017465].

Companion discovered2018 Oct 24 by V. Benishek, P. Pravec, D. Pray, O. Labrevoir, A. Carbognani, R. Durkee, and F. Pilcherusinglightcurve observations from Sopot Observatory, Serbia; Sugarloaf Mountain Observatory, South Deerfield, Massachusetts, USA; Saint-Michel l’Observatoire, France; Shed of Science South Observatory, Pontotoc, Texas, USA; Organ Mesa Observatory, Las Cruces, New Mexico, USA.Announced2019 Jan 07 [B19a].

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:

©2019, 2022by Wm. Robert Johnston.
Last modified30 April 2022
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