(80806) 2000 CM105

Asteroids with Satellites Database--Johnston's Archive

(80806) 2000 CM105

compiled by Wm. Robert Johnston
last updated 20 September 2014

--Orbital and physical data--

(See this page for definitions of quantities; source codes in brackets, see this link for full references; *A, *D, and *E indicate assumed, derived, and estimated values, respectively.)

dynamical type, primary: TNO, Cubewano
orbital data, primary (osculating elements) [JPL] :
semimajor axis a: 42.4032 AU
orbital period P: 276.125 yr
(= 100854.7 d)
eccentricity e: 0.06685
perihelion distance q: 39.568 AU
aphelion distance Q: 45.2380 AU
inclination i: 3.756120°
argument of perihelion ω: 10.02°
ascending node Ω: 45.6578°
mean anomaly M: 90.28°
perihelion passage T_P: 1945 Feb 23
Epoch: 2014 May 23
data arc: 2000-2008 (45 obs.)
Earth MOID: 38.5792 AU
Jupiter Tisserand invariant T_J: 5.807

Neptune Tisserand invariant T_N: 3.07 [*D]

orbital data, secondary:

semimajor axis a_s: 2700 ± 300 km (separation) [S06c]
separation/primary radius a_s/r_p: 34 [*E]
separation/Hill radius a_s/r_H: 0.0057 [*E]
orbital period P_s: 23 d [*E]
eccentricity e_s: ?
normalized ang. mom. α_L: ?

other data, system (combined):

absolute mag. H: 6.7 [MPC]
6.16 [JPL]
slope parameter G: (0.15) [*A]
effective diameter d_E: 201 km [*E]
geometric albedo: (0.09 ) [*A]
color index U-B: ?
color index B-V: 1.14 [T02a]
color index V-R: 0.74 [T02a]
color index B-R: 1.98 ± 0.23 [T02a]
taxonomic type: ?
mass m: ?
density ρ: (1 g/cm³) [*A]
Hill radius r_H: 470000 km [*E]
other data, primary:

diameter d_p: 160 km [*E]
rotation period RP_p: ?
amplitude in mag., rotational ΔM: <0.14 [L06a]
pole direction Β, λ: ? , ?

other data, secondary:

diameter d_s: 121 km [*E]
diameter ratio d_s/d_p: 0.759 ± 0.035 [N08c]
component mag. difference ΔM: 1.2 [S06c]
rotation period RP_s: ?

-- (80806) 2000 CM105 --discovery and notes:

Primary discovered 2000 Feb 06 from Kitt Peak Observatory, Arizona, USA by M. W. Buie. Permanent number assigned 2004 May 04.

Companion discovered 2002 Oct 05 using Hubble Space Telescope observations from Hubble Space Telescope. Announced 2005 Oct 06.

--Links, more technical:

Detection of Six Transneptunian Binaries with NICMOS: A High Fraction of Binaries in the Cold Classical Disk.

--Links, less technical:

--Links to ADS abstracts:

Millis, R. L., Buie, M. W., Wagner, R. M., Elliot, J. L., Harmer, D., Willmarth, D. W., Smith, P., Saha, A., Kern, S. D., Wasserman, L. H., & Marsden, B. G. 2000, Minor Planet Electronic Circulars NINE TNOs

© 2005-2006, 2014 by Wm. Robert Johnston.
Last modified 20 September 2014.
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