(9069) Hovland

compiled by Wm. Robert Johnston
last updated 14 October 2006

Orbital elements and other data (Assumed or derived values in parenthesis, my estimates in italics and parenthesis. Source identifications in brackets, see this link for sources):

orbital data, primary (osculating elements) [JPL]:
semimajor axis a: 1.9130945 AU
orbital period P: 2.6461 y (=966.5 d)
eccentricity e: 0.1181416
perihelion distance q: 1.6870785 AU
aphelion distance Q: 2.13911055 AU
inclination i: 19.56967°
argument of perihelion omega: 170.91997°
ascending node OMEGA: 247.99171°
mean anomaly M: 88.45177°
perihelion passage TP: 2004-12-23.530915
Epoch: 18 AUG 2005
data arc: 1991-2000 (65 obs.)

orbital data, secondary:
semimajor axis a: (8 km?)
semimajor axis/primary radius a/Rp: (5?)
orbital period P: 30.33 ± 0.01 h [W05b]
eccentricity e: ?

other data, primary:
diameter: 3 km [W05b]
absolute magnitude H: 14.4 [JPL]
rotation period: 4.2175 ± 0.0001 h [W05b]
amplitude delta M: 0.09 [W05b]
color index B-V: ?
color index V-R: ?
color index R-I: ?
slope parameter G: (0.15) [a]
geometric albedo: ?
mass: ?
density: ?
type: ?

other data, secondary:
diameter: (0.9 km)
diameter ratio Ds/Dp: 0.3 [W05b]
component magnitude difference: ?
rotation period: ?

--(9069) Hovland--discovery and notes:

Primary discovered 16 July 1993 by E. F. Helin from Palomar Observatory, California, USA. Alternate designation 1993 OV.

Companion discovered by Brian D. Warner, Petr Pravec, Alan W. Harris, Donald Pray, Vishnu Kanupuru, and Ron Dyvig based on lightcurve measurements from Oct to Nov 2004.

See more information and links at Asteroid/Comet Connection Catchall Catalog page

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:

© 2004-2005, 2006 by Wm. Robert Johnston.
Last modified 14 October 2006.
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