Asteroids with Satellites Database--Johnston's Archive

(7393) Luginbuhl

compiled by Wm. Robert Johnston
last updated 9 January 2019

--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: 2.2406226609 AU
orbital period P: 3.3539229859 yr
(= 1225.0435071 d)
eccentricity e: 0.199773359
perihelion distance q: 1.79300595 AU
aphelion distance Q: 2.688239376 AU
inclination i: 6.7298825°
argument of perihelion ω: 332.023729°
ascending node Ω: 23.519°
mean anomaly M: 122.748578°
perihelion passage TP: 2018 Mar 05.299030
Epoch: 2019 Apr 27
data arc: 1983-2018 (1754 obs.)
Earth MOID: 0.791441 AU
Jupiter Tisserand invariant TJ: 3.599


orbital data, secondary:
semimajor axis as: 16 km [*E]
separation/primary radius as/rp:6.3 [*E]
separation/Hill radius as/rH:0.022 [*E]
orbital period Ps: 1.6426 ± 0.0001 d [W19b]
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 13.2 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 5.47 ± 0.08 km [M**]
geometric albedo: 0.408 ± 0.065 [M**]
color index U-B: ?
color index B-V: ?
taxonomic type: ?
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 720 km [*E]

other data, primary:
diameter dp: 5.08 km [*D]
rotation period RPp: 2.68763 ± 0.00005 h [W19b]
amplitude in mag., rotational ΔM: 0.1 [W19b]
amplitude in mag., mutual events ΔM:0.16 [W19b]
pole direction Β, λ: ? , ?


other data, secondary:
diameter ds: >2.03 km [*D]
diameter ratio ds/dp: >0.4 ± 0.03 [W19b]
component mag. difference ΔM: <2.0 ± 0.2 [*D]
rotation period RPs: ?

-- (7393) Luginbuhl --discovery and notes:

Primary discovered 1984 Sep 28 from Anderson Mesa Station, Arizona, USA by B. A. Skiff. Alternate designation(s): 1984 SL3, 1983 EE2, 1993 FM35. Linked to prediscovery observations from 1983 Mar 11. Permanent number assigned 1997 Jan 23.

Named 1999 Sep 28 for Christian B. Luginbuhl (1955-) [MPC036127].

Companion discovered 2018 Dec 04 by B. D. Warner and B. A. Skiff using lightcurve observations from Center for Solar System Studies, Landers, California, United States. Announced 2019 Jan 09 [W19b].

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:


© 2019 by Wm. Robert Johnston.
Last modified 9 January 2019
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