Asteroids with Satellites Database--Johnston's Archive

2003 SS84

compiled by Wm. Robert Johnston
last updated 20 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: NEA, Apollo (PHA)

orbital data, primary (osculating elements) [JPL] :
semimajor axis a: 1.930486345 AU
orbital period P: 2.68230589 yr
(= 979.712226 d)
eccentricity e: 0.570693888
perihelion distance q: 0.82876959 AU
aphelion distance Q: 3.032203103 AU
inclination i: 5.4956067°
argument of perihelion ω: 234.653776°
ascending node Ω: 198.358205°
mean anomaly M: 329.886635°
perihelion passage TP: 2014 Aug 12.9512
Epoch: 2014 May 23
data arc: 2003-2011 (247 obs.)
Earth MOID: 0.00548052 AU
Jupiter Tisserand invariant TJ: 3.691

orbital data, secondary:
semimajor axis as: 0.27 km [*E]
separation/primary radius as/rp:4.5 [*E]
separation/Hill radius as/rH:0.034 [*E]
orbital period Ps: 1 d [N03b]
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 21.8 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 0.13 ± 0.02 km [*D]
geometric albedo: 0.18 [*E]
color index U-B: ?
color index B-V: ?
taxonomic type: ?
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 8 km [*E]

other data, primary:
diameter dp: 0.12 ± 0.02 km [N03b]
rotation period RPp: ?
amplitude in mag., rotational ΔM: ?
pole direction Β, λ: ? , ?

other data, secondary:
diameter ds: 0.06 ± 0.02 km [N03b]
diameter ratio ds/dp: 0.5 ± 0.186 [*D]
component mag. difference ΔM: 1.5 [* D]
rotation period RPs: ?

-- 2003 SS84 --discovery and notes:

Primary discovered 2003 Sep 20 from Lincoln Laboratory ETS, New Mexico, USA by LINEAR.

Companion discovered 2003 Oct 04 by M. C. Nolan, A. A. Hine, E. S. Howell, L. A. M. Benner, and J. D. Giorgini using radar observations from Arecibo Observatory, Puerto Rico. Announced 2003 Oct 10 [N03b].

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:

© 2003-2008, 2014 by Wm. Robert Johnston.
Last modified 20 September 2014.
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