(48639) 1995 TL8

compiled by Wm. Robert Johnston
last updated 9 October 2005

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: 52.2176197329253 AU
orbital period P: 377.3408 y (=137,825 d)
eccentricity e: 0.232979444804637
perihelion distance q: 40.0519876785287 AU
aphelion distance Q: 64.38325179 AU
inclination i: 0.243763844619077°
argument of perihelion omega: 83.4537819393876°
ascending node OMEGA: 261.013638359201°
mean anomaly M: 32.4694252355857°
perihelion passage TP: 1971-01-18.2843009
Epoch: 30 JAN 2005
data arc: 1995-2003 (46 obs.)

orbital data, secondary:
semimajor axis a: (420 km separation) [S05a]
semimajor axis/primary radius a/Rp: (2.4?)
orbital period P: (0.5 d?)
eccentricity e: ?
inclination i: ?

other data, primary:
diameter: (352 km?)
absolute magnitude H: 5.28 [JPL]
rotation period: ?
amplitude delta M: ?
color index B-V: 1.04 ± 0.01 [B05c]
color index V-R: 0.69 ± 0.01 [B05c]
color index V-I: 1.33 ± 0.01 [B05c]
color index V-J: 2.42 ± 0.05 [B05c]
color index V-H: 2.82 ± 0.07 [B05c]
slope parameter G: (0.15) [a]
geometric albedo: (0.09) [a]
mass (system): ?
density: ?
BBFB type: RR [B05c]

other data, secondary:
diameter: (161 km?)
diameter ratio Ds/Dp: (0.46)
component magnitude difference: 1.7 [S05a]
rotation period: ?

--(48639) 1995 TL8--discovery and notes:

Primary discovered 15 October 1995 by A. Gleason from Steward Observatory.

Companion discovered by Denise C. Stephens and Keith S. Noll from Hubble Space Telescope observations of 9 November 2002; announced 5 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 by Wm. Robert Johnston.
Last modified 9 October 2005.
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