Asteroids with Satellites Database--Johnston's Archive

(4383) Suruga

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: 2.424516768 AU
orbital period P: 3.775252383 yr
(= 1378.910933 d)
eccentricity e: 0.063722790
perihelion distance q: 2.27001980 AU
aphelion distance Q: 2.579013741 AU
inclination i: 7.1543719°
argument of perihelion ω: 317.343531°
ascending node Ω: 88.567977°
mean anomaly M: 197.968390°
perihelion passage TP: 2016 Feb 02.6309
Epoch: 2014 May 23
data arc: 1979-2014 (1028 obs.)
Earth MOID: 1.28491 AU
Jupiter Tisserand invariant TJ: 3.498


orbital data, secondary:
semimajor axis as: 11 km [*E]
separation/primary radius as/rp:3.5 [*E]
separation/Hill radius as/rH:0.0098 [*E]
orbital period Ps: 0.6828 ± 0.00004 d [W13d]
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 12.9 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 6.47 ± 0.09 km [M11b]
geometric albedo: 0.32 ± 0.038 [M11b]
color index U-B: ?
color index B-V: ?
taxonomic type: ?
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 1100 km [*E]

other data, primary:
diameter dp: 6.33 ± 0.09 km [*D]
rotation period RPp: 3.4068 ± 0.0003 h [W13d]
amplitude in mag., rotational ΔM: 0.14 ± 0.01 [W13d]
amplitude in mag., mutual events ΔM:0.075 ±0.025 [W13d]
pole direction Β, λ: ? , ?


other data, secondary:
diameter ds: 1.33 ± 0.13 km [*D]
diameter ratio ds/dp: >0.21 ± 0.02 [W13d]
component mag. difference ΔM: <3.4 ± 0.2 [*D]
rotation period RPs: ?

-- (4383) Suruga --discovery and notes:

Primary discovered 1989 Dec 01 from Gekko, Japan by Y. Oshima. Alternate designation(s): 1989 XP, 1979 BE2, 1981 UD10, 1983 DN, 1985 UL4, 1985 VB4. Linked to prediscovery observations from 1979 Jan 24. Permanent number assigned 1990 Feb 09.

Named 1991 May 28 for the Suruga district of Shizouka, Japan [MPC18307].

Companion discovered 2013 Feb 01 using lightcurve observations. Announced 2013 Feb .

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:


© 2013, 2014 by Wm. Robert Johnston.
Last modified 21 September 2014.
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