Asteroids with Satellites Database--Johnston's Archive

(18527) 1996 VJ30

compiled by Wm. Robert Johnston
last updated 22 October 2018

--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: 2.3991578652 AU
orbital period P: 3.71610724 yr
(= 1357.3338042 d)
eccentricity e: 0.143552493
perihelion distance q: 2.054752773 AU
aphelion distance Q: 2.743562957 AU
inclination i: 5.4545662°
argument of perihelion ω: 104.780076°
ascending node Ω: 243.4416°
mean anomaly M: 69.026484°
perihelion passage TP: 2018 Aug 09.744500
Epoch: 2019 Apr 27
data arc: 1951-2018 (1602 obs.)
Earth MOID: 1.05575 AU
Jupiter Tisserand invariant TJ: 3.507


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

other data, system (combined):
absolute mag. H: 13.9 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 3.35 ± 0.48 km [M**]
geometric albedo: 0.572 ± 0.147 [M**]
color index U-B: ?
color index B-V: ?
taxonomic type: ?
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 630 km [*E]

other data, primary:
diameter dp: 3.35 ± 0.48 km [M**]
rotation period RPp: ?
amplitude in mag., rotational ΔM: ?
pole direction Β, λ: ? , ?


other data, secondary:
diameter ds: ?
diameter ratio ds/dp: ?
component mag. difference ΔM: ?
rotation period RPs: ?

-- (18527) 1996 VJ30 --discovery and notes:

Primary discovered 1996 Nov 07 from Kushiro, Hokkaido, Japan by S. Ueda and H. Kaneda. Alternate designation(s): 1992 SV26. Linked to prediscovery observations from 1951 Aug 10. Permanent number assigned 2000 Nov 11.

Companion discovered 2018 Oct using lightcurve observations. Announced 2018 Oct 14.

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:


© 2018, 2014 by Wm. Robert Johnston.
Last modified 22 October 2018.
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