Asteroids with Satellites Database--Johnston's Archive

(5407) 1992 AX

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: Mars crossing asteroid


orbital data, primary (osculating elements) [JPL] :
semimajor axis a: 1.838397297 AU
orbital period P: 2.492684204 yr
(= 910.4529055 d)
eccentricity e: 0.277565693
perihelion distance q: 1.32812128 AU
aphelion distance Q: 2.348673318 AU
inclination i: 11.3901438°
argument of perihelion ω: 108.705264°
ascending node Ω: 117.766716°
mean anomaly M: 272.088788°
perihelion passage TP: 2014 Dec 31.33060
Epoch: 2014 May 23
data arc: 1951-2014 (1695 obs.)
Earth MOID: 0.37775 AU
Jupiter Tisserand invariant TJ: 3.95


orbital data, secondary:
binary dynamical type:A [P07f]
semimajor axis as: 5.8 km [*E]
separation/primary radius as/rp:3.0 [*E]
separation/Hill radius as/rH:0.014 [*E]
orbital period Ps: 0.5633 ± 0.00004 d [P06b]
eccentricity es: <0.05 [P02a]
normalized ang. mom. αL: 1.03 [P07f]

other data, system (combined):
absolute mag. H: 13.9 [MPC]
14.47 ± 0.05 [P00a]
slope parameter G: (0.15) [*A]
effective diameter dE: 3.98 km [*D]
geometric albedo: 0.18 [P06b]
color index U-B: ?
color index B-V: 0.69 [P00a]
color index V-R:0.5 ± 0.02 [P00a]
color index B-R:1.19 [P00a]
color index V-I:0.84 [P00a]
taxonomic type: Sk (SMASSII) [JPL]
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 400 km [*E]

other data, primary:
diameter dp: 3.9 ± 1 km [P06b]
rotation period RPp: 2.549 ± 0.000 h [P06b]
amplitude in mag., rotational ΔM: 0.12 [W14e]
pole direction Β, λ: ? , ?


other data, secondary:
diameter ds: 0.78 ± 0.21 km [*D]
diameter ratio ds/dp: 0.2 ± 0.02 [P06b]
component mag. difference ΔM: 3.5 ± 0.2 [*D]
rotation period RPs: ?

-- (5407) 1992 AX --discovery and notes:

Primary discovered 1992 Jan 04 from Kushiro, Hokkaido, Japan by S. Ueda and H. Kaneda. Alternate designation(s): 1987 BH2. Linked to prediscovery observations from 1951 Nov 28. Permanent number assigned 1992 Dec 09.

Companion discovered 1997 Jan 07 using lightcurve observations. Announced 1997.

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:


© 2001-2010, 2014 by Wm. Robert Johnston.
Last modified 21 September 2014.
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