Asteroids with Satellites Database--Johnston's Archive

2002 KK8

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, Amor (PHA)

orbital data, primary (osculating elements) [JPL] :
semimajor axis a: 1.953258318 AU
orbital period P: 2.729906208 yr
(= 997.0982423 d)
eccentricity e: 0.466308688
perihelion distance q: 1.042436995 AU
aphelion distance Q: 2.864079642 AU
inclination i: 24.538930°
argument of perihelion ω: 174.131844°
ascending node Ω: 77.0084300°
mean anomaly M: 136.066352°
perihelion passage TP: 2013 May 11.13466
Epoch: 2014 May 23
data arc: 2002-2013 (109 obs.)
Earth MOID: 0.0290595 AU
Jupiter Tisserand invariant TJ: 3.65

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

other data, system (combined):
absolute mag. H: 21 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 0.51 km [*D]
geometric albedo: 0.03 [*E]
color index U-B: ?
color index B-V: ?
taxonomic type: ?
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 41 km [*E]

other data, primary:
diameter dp: 0.5 ± 0.02 km [N02b]
rotation period RPp: ?
amplitude in mag., rotational ΔM: ?
pole direction Β, λ: ? , ?

other data, secondary:
diameter ds: 0.1 ± 0.02 km [N02b]
diameter ratio ds/dp: 0.2 ± 0.041 [*D]
component mag. difference ΔM: 3.5 [* D]
rotation period RPs: ?

-- 2002 KK8 --discovery and notes:

Primary discovered 2002 May 30 from Lincoln Laboratory ETS, New Mexico, USA by LINEAR.

Companion discovered 2002 Jun 08 by M. C. Nolan, E. S. Howell, S. J. Ostro, L. A. M. Benner, J. D. Giorgini, J.-L. Margot, and D. B. Campbell using radar observations from Arecibo Observatory, Puerto Rico. Announced 2002 Jun 17 [N02b].

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:

© 2002-2005, 2014 by Wm. Robert Johnston.
Last modified 20 September 2014.
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