(3982) Kastel

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: 2.2592575 AU
orbital period P: 3.3959 y (=1,240.4 d)
eccentricity e: 0.2182571
perihelion distance q: 1.7661585 AU
aphelion distance Q: 2.75235649 AU
inclination i: 5.29934°
argument of perihelion omega: 50.67545°
ascending node OMEGA: 252.00798°
mean anomaly M: 33.56507°
perihelion passage TP: 2005-04-24.3536081
Epoch: 18 AUG 2005
data arc: 1930-1998 (41 obs.)

orbital data, secondary:
semimajor axis a: (10 km?)
semimajor axis/primary radius a/Rp: (2.5?)
orbital period P: 8.488 h? [I8609]
eccentricity e: ?

other data, primary:
diameter: (9 km?)
absolute magnitude H: 13.2 [JPL]
rotation period: 5.835 h or 2.918 h [I8609]
amplitude delta M: 0.27 and 0.08 [I8609]
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: ?
diameter ratio Ds/Dp: ?
component magnitude difference: ?
rotation period: ?

--(3982) Kastel--discovery and notes:

Primary discovered 2 May 1984 from Nauchnyj by L. G. Karachkina, but linked to prediscovery observations/other objects through 1930. Alternate designations 1984 JP1, 1978 TT5, 1954 RC, 1947 NE, 1930 MF.

Secondary identified by P. Pravec, P. Kusnirak, L. Kornos, J. Vilagi, D. Pray, R. Durkee, W. Cooney, J. Gross, and D. Terrell based on lightcurve observations from 24-29 September 2005; reported 1 October 2005.

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

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:

© 2005-2007, 2008 by Wm. Robert Johnston.
Last modified 28 November 2008.
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