Asteroids with Satellites Database--Johnston's Archive

(114319) 2002 XD58

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: Mars crossing asteroid

orbital data, primary (osculating elements) [JPL] :
semimajor axis a: 2.256121969 AU
orbital period P: 3.388847798 yr
(= 1237.776658 d)
eccentricity e: 0.27521764
perihelion distance q: 1.63519740 AU
aphelion distance Q: 2.877046538 AU
inclination i: 6.8311035°
argument of perihelion ω: 92.636324°
ascending node Ω: 242.557690°
mean anomaly M: 213.343282°
perihelion passage TP: 2015 Oct 09.2451
Epoch: 2014 May 23
data arc: 1988-2014 (395 obs.)
Earth MOID: 0.642718 AU
Jupiter Tisserand invariant TJ: 3.563

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

other data, system (combined):
absolute mag. H: 15.5 [MPC]
15.4 ± 0.2 [C328]
slope parameter G: (0.15) [*A]
effective diameter dE: 2.62 km [*E]
geometric albedo: (0.16 ) [*A]
color index U-B: ?
color index B-V: ?
taxonomic type: ?
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 330 km [*E]

other data, primary:
diameter dp: 2.62 km [*E]
rotation period RPp: 7.954 h [P05b]
amplitude in mag., rotational ΔM: 0.14 [P05b]
amplitude in mag., mutual events ΔM:0.08 [P05b]
pole direction Β, λ: ? , ?

other data, secondary:
diameter ds: ?
diameter ratio ds/dp: ?
component mag. difference ΔM: ?
rotation period RPs: 2.9649 h [P05b]

-- (114319) 2002 XD58 --discovery and notes:

Primary discovered 2002 Dec 11 from Socorro, New Mexico, USA by LINEAR. Alternate designation(s): 1988 PJ4. Linked to prediscovery observations from 1988 Aug 14. Permanent number assigned 2005 Oct 19.

Companion discovered 2005 Aug 25 by D. Pray, P. Pravec, P. Kusnirak, S. Gajdos, J. Vilagi, A. Galad, S. Nudds, and Z. Krzeminski using lightcurve observations from Ondrejov Observatory, Czech Republic; Modra Observatory, Slovakia; Elginfield Observatory, University of Western Ontario, Ontario, Canada. Announced 2005 Dec 23 [P05b].

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© 2005-2008, 2014 by Wm. Robert Johnston.
Last modified 20 September 2014.
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