(4492) Debussy

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: 2.7670143 AU
orbital period P: 4.6028 y (=1681.2 d)
eccentricity e: 0.1791189
perihelion distance q: 2.2713897 AU
aphelion distance Q: 3.26263886 AU
inclination i: 8.02948°
argument of perihelion omega: 53.10265°
ascending node OMEGA: 350.15026°
mean anomaly M: 213.42089°
perihelion passage TP: 2007-07-03.5183774
Epoch: 18 AUG 2005
data arc: 1951-2000 (104 obs.)

orbital data, secondary:
semimajor axis a: 5.2 to 13.5 km [B06c]
semimajor axis/primary radius a/Rp: 1.82 ± 0.08 [B06c]
orbital period P: 26.606 ± 0.001 h [B06c]
eccentricity e: ?

other data, primary:
diameter: (10.1 ± 4.1 km) [B06c]
absolute magnitude H: 12.9 [JPL]
rotation period: 26.606 ± 0.001 h [B06c]
amplitude delta M: 0.48 ± 0.01; 0.65 ± 0.03 [B06c]
color index B-V: ?
color index V-R: ?
color index R-I: ?
slope parameter G: (0.15) [a]
geometric albedo: ?
mass: (3.7 to 63)x1013 kg [B06c]
density: 0.91 ± 0.10 g/cm3 [B06c]
type: ?

other data, secondary:
diameter: (6 km)
diameter ratio Ds/Dp: 0.64 [I8354]
component magnitude difference: (1.0)
rotation period: ?

--(4492) Debussy--discovery and notes:

Primary discovered 17 September 1988 by E. W. Elst from Haute Provence, but subsequently linked to prediscovery observations as far back as 1951. Additional designations 1979 SZ10, 1979 VF1, 1981 EC, and 1988 SH.

Secondary discovered from analysis of lightcurve observations made from 30 October 2002 to 4 December 2002 and from 18 March 2004 to 18 May 2004 by R. Behrend, R. Roy, S. Sposetti, L. Bernasconi, and ten others; reported 21 March 2004, announced by the MPC on 15 June 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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