Asteroids with Satellites Database--Johnston's Archive

(32008) Adriangalad

compiled by Wm. Robert Johnston
last updated 21 June 2016

--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: main belt asteroid

orbital data, primary (osculating elements) [JPL] :
semimajor axis a: 2.192129962 AU
orbital period P: 3.245694573 yr
(= 1185.489943 d)
eccentricity e: 0.192345615
perihelion distance q: 1.77048338 AU
aphelion distance Q: 2.613776547 AU
inclination i: 6.3013807°
argument of perihelion ω: 143.854747°
ascending node Ω: 221.937638°
mean anomaly M: 1.853279°
perihelion passage TP: 2014 May 16.89709
Epoch: 2014 May 23
data arc: 1991-2013 (783 obs.)
Earth MOID: 0.772728 AU
Jupiter Tisserand invariant TJ: 3.64

orbital data, secondary:
binary dynamical type:A [M09a]
semimajor axis as: 13 km [*E]
separation/primary radius as/rp:6.1 [*E]
separation/Hill radius as/rH:0.022 [*E]
orbital period Ps: 1.677 ± 0.0008 d [P07b]
eccentricity es: ?
normalized ang. mom. αL: 1.41 [M09a]

other data, system (combined):
absolute mag. H: 14.4 [MPC]
14.17 ± 0.1 [P07b]
slope parameter G: (0.15) [*A]
effective diameter dE: 4.56 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: 590 km [*E]

other data, primary:
diameter dp: 4.23 km [*E]
rotation period RPp: 3.0171 ± 0.0001 h [P07b]
amplitude in mag., rotational ΔM: 0.19 [P07b]
pole direction Β, λ: ? , ?

other data, secondary:
diameter ds: 1.69 km [*E]
diameter ratio ds/dp: >0.4 [P07b]
component mag. difference ΔM: <2.0 [*D]
rotation period RPs: ?

-- (32008) Adriangalad --discovery and notes:

Primary discovered 2000 Apr 29 from Socorro, New Mexico, USA by LINEAR. Alternate designation(s): 2000 HM53, 1994 PZ39. Linked to prediscovery observations from 1991 Nov 04. Permanent number assigned 2001 Nov 30.

Companion discovered 2007 Aug 05 by P. Pravec, P. Kusnirak, and K. Hornoch, J. Vilagi, L. Kornos, and A. Galad, D. Higgins, V. Chiorny, D. Pray, R. Stephens, V. Reddy, and R. Dyvig using lightcurve observations from Ondrejov Observatory, Czech Republic; Modra Observatory, Slovakia; Canberra, Australia; Kharkiv National University, Ukraine; Carbuncle Hill Observatory, Greene, RI; Goat Mountain Astronomical Research Station, Yucca Valley, CA; University of North Dakota, Grand Forks; Badlands Observatory, Quinn, South Dakota, USA. Announced 2007 Sep 20 [P07b].

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--Links to ADS abstracts:

© 2007-2014, 2016 by Wm. Robert Johnston.
Last modified 21 June 2016.
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