Asteroids with Satellites Database--Johnston's Archive

(350751) 2002 AW

compiled by Wm. Robert Johnston
last updated 27 March 2022

--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: 1.07085917194 AU
orbital period P: 1.1081709046 yr
(= 404.7594229 d)
eccentricity e: 0.256311427
perihelion distance q: 0.796385729 AU
aphelion distance Q: 1.3453326147 AU
inclination i: 0.5745588°
argument of perihelion ω: 119.24233°
ascending node Ω: 162.09829°
mean anomaly M: 233.484836°
perihelion passage TP: 2022 Jun 12.245013
Epoch: 2022 Jan 21
data arc: 2001-2022 (487 obs.)
Earth MOID: 0.00482977 AU
Jupiter Tisserand invariant TJ: 5.736


orbital data, secondary:
semimajor axis as: 0.52 km [*E]
separation/primary radius as/rp:4.5 [*E]
separation/Hill radius as/rH:0.037 [*E]
orbital period Ps: 1.047 ± 0.0008 d [P22a]
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 20.75 [MPC]
20.74 ± 0.02 [P22a]
slope parameter G: (0.12) [*A]
effective diameter dE: 0.24 km [*E]
geometric albedo: (0.16 ) [*A]
color index U-B: ?
color index B-V: ?
color index V-R:0.37 ± 0.01 [P22a]
taxonomic type: B (SMASSII) [P22a]
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 14 km [*E]

other data, primary:
diameter dp: 0.23 km [*E]
rotation period RPp: 4.647 ± 0.002 h [P22a]
amplitude in mag., rotational ΔM: 0.08 [P22a]
amplitude in mag., mutual events ΔM:0.075 ±0.025 [P22a]
pole direction Β, λ: ? , ?


other data, secondary:
diameter ds: 0.05 km [*E]
diameter ratio ds/dp: 0.21 ± 0.02 [P22a]
component mag. difference ΔM: 3.39 ± 0.21 [*D]
rotation period RPs: ?

-- (350751) 2002 AW --discovery and notes:

Primary discovered 2002 Jan 05 from Kitt Peak Observatory, Arizona, USA by Spacewatch Program. Linked to prediscovery observations from 2001 Dec 17.

Companion discovered 2022 Feb 05 by Pravec, P., P. Kusnirak, K. Hornoch, P. Fatka, H. Kucakova, J. Licandro, J. de Leon, M. Popescu, G. N. Simion, and B. A. Dumitru using lightcurve observations from La Silla station, European Southern Observatory; Teide Observatory. Announced 2022 Mar 19 [P22a].

--Links, more technical:

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--Links to ADS abstracts:


© 2022 by Wm. Robert Johnston.
Last modified 27 March 2022.
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