(6265) 1985 TW3
compiled by Wm. Robert Johnston
last updated 29 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: |
2.1659895 AU
| |
orbital period P: |
3.19 y (=1,164.348 d)
| |
eccentricity e: |
0.1928808
| |
perihelion distance q: |
1.748212 AU
| |
aphelion distance Q: |
2.583767 AU
| |
inclination i: |
4.11452°
| |
argument of perihelion omega: |
281.26782°
| |
ascending node OMEGA: |
45.27028°
| |
mean anomaly M: |
10.49365°
| |
perihelion passage TP: |
2007-09-23.060
| |
Epoch: |
27 OCT 2007
| |
data arc: |
1979-2004 (430 obs.)
|
orbital data, secondary:
|
semimajor axis a: |
(10 km?)
| |
semimajor axis/primary radius a/Rp: |
(3.5?)
| |
orbital period P: |
15.86 ± 0.01 h [HHa]
| |
eccentricity e: |
?
| |
other data, primary:
|
diameter: |
(6 km?)
| |
absolute magnitude H: |
13.5 [JPL]
| |
rotation period: |
2.709173 ± 0.000029 h [HHa]
| |
amplitude delta M: |
0.28 ± 0.01 [HHa]
| |
color index B-V: |
?
| |
color index V-R: |
?
| |
color index R-I: |
?
| |
slope parameter G: |
(0.15) assumed
| |
geometric albedo: |
(0.20) assumed
| |
mass: |
?
| |
density: |
?
| |
type: |
?
|
other data, secondary:
|
diameter: |
(1.4 km?)
| |
diameter ratio Ds/Dp: |
0.24 ± 0.02 [HHa]
| |
component magnitude difference: |
(3.1)
| |
rotation period: |
?
|
|
--(6265) 1985 TW3--discovery and notes:
Primary discovered 11 October 1985 by Fric and Gilbrech at Palomar Observatory, USA. Linked to precovery observations from 1979. Alternate designations 1953 RK1, 1969 TZ4, 1979 YG9, 1985 VQ1, 1987 GD1, 1990 CX.
Companion discovered by D. Higgins, P. Pravec, and P. Kusnirak based on lightcurve observations from 15-25 July 2007; reported 2 August 2007.
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
© 2007, 2008 by Wm. Robert Johnston.
Last modified 29 November 2008.
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