(9260) Edwardolson

compiled by Wm. Robert Johnston
last updated 28 November 2008

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: 2.2899636 AU
orbital period P: 3.4654 y (=1,265.7 d)
eccentricity e: 0.2300735
perihelion distance q: 1.7631037 AU
aphelion distance Q: 2.81682354 AU
inclination i: 5.0988°
argument of perihelion omega: 148.44669°
ascending node OMEGA: 214.70747°
mean anomaly M: 353.92467°
perihelion passage TP: 2005-09-08.3603651
Epoch: 18 AUG 2005
data arc: 1953-2003 (245 obs.)

orbital data, secondary:
semimajor axis a: (8 km?)
semimajor axis/primary radius a/Rp: (3.7?)
orbital period P: 17.785 ± 0.003 h [C270]
eccentricity e: ?

other data, primary:
diameter: (4 km?)
absolute magnitude H: 14.7 [JPL]
rotation period: 3.0852 ± 0.0001 h [C270]
amplitude delta M: 0.11; 0.08-0.15 [C270]
color index B-V: ?
color index V-R: ?
color index R-I: ?
slope parameter G: (0.15) assumed
geometric albedo: (0.12) assumed
mass: ?
density: ?
type: ?

other data, secondary:
diameter: (1 km?)
diameter ratio Ds/Dp: 0.27 ± 0.03 [C270]
component magnitude difference: (2.8)
rotation period: ?

--(9260) Edwardolson--discovery and notes:

Primary discovered 8 October 1953 by Indiana University. Alternate designations 1953 TA1, 1991 QH

Companion discovered by M. Jakubik, M. Husarik, J. Vilagi, S. Gajdos, A. Galad, P. Pravec, P. Kusnirak, W. Cooney, J. Gross, D. Terrell, D. Pray, and R. Stephens from lightcurve observations made 6-30 October 2005; reported 2 November 2005.

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

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:

© 2005-2006, 2008 by Wm. Robert Johnston.
Last modified 28 November 2008.
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