Asteroids with Satellites Database--Johnston's Archive

(6611) 1993 VW

compiled by Wm. Robert Johnston
last updated 25 May 2024

--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: NEA, Apollo


orbital data, primary (osculating elements) [JPL] :
semimajor axis a: 1.695917296 AU
orbital period P: 2.208590533 yr
(= 806.6876923 d)
eccentricity e: 0.484483724
perihelion distance q: 0.874272969 AU
aphelion distance Q: 2.517561623 AU
inclination i: 8.696210849°
argument of perihelion ω: 281.2995797°
ascending node Ω: 230.9818186°
mean anomaly M: 59.63503448°
perihelion passage TP: 2014 Jan 09.36986
Epoch: 2014 May 23
data arc: 1982-2013 (581 obs.)
Earth MOID: 0.0610907 AU
Jupiter Tisserand invariant TJ: 4.056


orbital data, secondary:
semimajor axis as: ?
orbital period Ps: ?
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 16.8 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 1.41 ± 0.34 km [M17o]
geometric albedo: 0.158 ± 0.125 [M17o]
color index U-B: ?
color index B-V: ?
taxonomic type: V (SMASSII) [JPL]
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 96 km [*E]

other data, primary:
diameter dp: 1.41 ± 0.34 km [M17o]
rotation period RPp: 2.5568 ± 0.00008 h [P22c]
amplitude in mag., rotational ΔM: 0.06 [P22c]
pole direction Β, λ: ? , ?


other data, secondary:
diameter ds: ?
diameter ratio ds/dp: ?
component mag. difference ΔM: ?
rotation period RPs: 17.19 ± 0.003 h [P22c]

-- (6611) 1993 VW --discovery and notes:

Primary discovered 1993 Nov 09 from Palomar Observatory, California, USA by E. F. Helin and J. Alu. Linked to prediscovery observations from 1982 Nov 15. Permanent number assigned 1995 Oct 08.

Companion discovered 2005 May 09 by P. Pravec, et al. using lightcurve observations from Ondrejov Observatory, Czech Republic; other observatories. Announced 2005 Jun [K07d].

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:


© 2024 by Wm. Robert Johnston.
Last modified 25 May 2024
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