Asteroids with Satellites Database--Johnston's Archive

(5674) Wolff

compiled by Wm. Robert Johnston
last updated 24 April 2016

--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: 2.3573702944 AU
orbital period P: 3.619442735 yr
(= 1322.0264274 d)
eccentricity e: 0.166350317
perihelion distance q: 1.965221 AU
aphelion distance Q: 2.749519589 AU
inclination i: 1.7034603°
argument of perihelion ω: 311.55317°
ascending node Ω: 39.81948°
mean anomaly M: 40.267807°
perihelion passage TP: 2015 Aug 18.124707
Epoch: 2016 Jan 13
data arc: 1956-2016 (1531 obs.)
Earth MOID: 0.958057 AU
Jupiter Tisserand invariant TJ: 3.534

orbital data, secondary:
semimajor axis as: 30 km [*E]
separation/primary radius as/rp:12.7 [*E]
orbital period Ps: 3.904 ± 0.008 d [A16a]
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 13.3 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 6.04 ± 0.13 km [M11b]
geometric albedo: 0.193 ± 0.024 [M11b]
color index U-B: ?
color index B-V: ?
taxonomic type: ?
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 830 km [*E]

other data, primary:
diameter dp: 4.72 km [*D]
rotation period RPp: 93.7 ± 0.2 h [A16a]
amplitude in mag., rotational ΔM: 0.52 [A16a]
pole direction Β, λ: ? , ?

other data, secondary:
diameter ds: >3.78 km [*D]
diameter ratio ds/dp: >0.8 [A16a]
component mag. difference ΔM: <0.5 [*D]
rotation period RPs: 93.7 ± 0.2 h [A16a]

-- (5674) Wolff --discovery and notes:

Primary discovered 1986 Sep 05 from Anderson Mesa, Flagstaff, Arizona, USA by E. Bowell. Alternate designation(s): 1986 RW2, 1975 RC1. Linked to prediscovery observations from 1956 May 08. Permanent number assigned 1993 Sep 30.

Named 1994 May 25 for John M. Wolff [MPC23541].

Companion discovered 2015 Oct 10 by A. Aznar, P. Pravec, J. Oey, R. Groom using lightcurve observations from Centro Astronomico del Alto Turia, Spain; Blue Mountains Observatory, Leura, New South Wales, Australia. Announced 2016 Apr 23 [A16a].

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:

© 2016 by Wm. Robert Johnston.
Last modified 24 April 2016.
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