Asteroids with Satellites Database--Johnston's Archive

(15268) Wendelinefroger

compiled by Wm. Robert Johnston
last updated 21 September 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: 2.365111709 AU
orbital period P: 3.637355000 yr
(= 1328.543914 d)
eccentricity e: 0.235088725
perihelion distance q: 1.80910061 AU
aphelion distance Q: 2.921122805 AU
inclination i: 2.7541475°
argument of perihelion ω: 210.38849°
ascending node Ω: 144.06387°
mean anomaly M: 205.832387°
perihelion passage TP: 2015 Dec 12.94012
Epoch: 2014 May 23
data arc: 1979-2014 (813 obs.)
Earth MOID: 0.803457 AU
Jupiter Tisserand invariant TJ: 3.509

orbital data, secondary:
semimajor axis as: 8.7 km [*E]
separation/primary radius as/rp:4.5 [*E]
separation/Hill radius as/rH:0.016 [*E]
orbital period Ps: 1.045 ± 0.0008 d [O08a]
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 14.6 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 3.97 km [*E]
geometric albedo: (0.16 ) [*A]
color index U-B: ?
color index B-V: ?
taxonomic type: ?
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 540 km [*E]

other data, primary:
diameter dp: 3.83 km [*E]
rotation period RPp: 2.4224 ± 0.0001 h [O08a]
amplitude in mag., rotational ΔM: 0.07 [O08a]
pole direction Β, λ: ? , ?

other data, secondary:
diameter ds: 1.03 km [*E]
diameter ratio ds/dp: >0.27 [O08a]
component mag. difference ΔM: <2.8 [*D]
rotation period RPs: ?

-- (15268) Wendelinefroger --discovery and notes:

Primary discovered 1990 Nov 18 from European Southern Observatory, La Silla, Chile by E. W. Elst. Alternate designation(s): 1990 WF3, 1979 WA7, 1986 PO5, 1999 CD133. Linked to prediscovery observations from 1979 Nov 17. Permanent number assigned 2000 Jun 21.

Named 2008 Dec 12 for Wendeline Froger (1948-) [MPC64563].

Companion discovered 2008 Sep 24 by J. Oey, P. Pravec, P. Kusnirak, K. Hornoch, R. Stephens, S. Gajdos, L. Kornos, and V. Chiorny using lightcurve observations from Leura Observatory, New South Wales, Australia; Ondrejov Observatory, Czech Republic; Goat Mountain Astronomical Research Station, Yucca Valley, California, USA; Modra Observatory, Slovakia; Kharkiv National University, Ukraine. Announced 2008 Oct 20 [O08a].

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:

© 2008-2009, 2014 by Wm. Robert Johnston.
Last modified 21 September 2014.
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