Asteroids with Satellites Database--Johnston's Archive

(523624) 2008 CT190

compiled by Wm. Robert Johnston
last updated 29 May 2019

--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, scattered disk


orbital data, primary (osculating elements) [JPL] :
semimajor axis a: 53.0419 AU
orbital period P: 386.303 yr
(= 141100 d)
eccentricity e: 0.345728
perihelion distance q: 34.70387 AU
aphelion distance Q: 71.38 AU
inclination i: 38.883336°
argument of perihelion ω: 48.1162°
ascending node Ω: 103.737493°
mean anomaly M: 5.63304°
perihelion passage TP: 2012 Mar 06.16
Epoch: 2018 Mar 23
data arc: 2002-2018 (118 obs.)
Earth MOID: 33.8312 AU
Jupiter Tisserand invariant TJ: 4.762
Neptune Tisserand invariant TN:2.507 [*D]


orbital data, secondary:
semimajor axis as: 1300 ± 200 km (separation) [N18b]
separation/primary radius as/rp:11 [*E]
separation/Hill radius as/rH:0.0014 [*E]
orbital period Ps: 4.1 d [*E]
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 5.5 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 304 km [*E]
geometric albedo: (0.09 ) [*A]
color index U-B: ?
color index B-V: ?
taxonomic type: ?
mass m: ?
density ρ: (1 g/cm3) [*A]
Hill radius rH: 960000 km [*E]

other data, primary:
diameter dp: 234 km [*E]
rotation period RPp: ?
amplitude in mag., rotational ΔM: ?
pole direction Β, λ: ? , ?


other data, secondary:
diameter ds: 194 km [*E]
diameter ratio ds/dp: 0.83 ± 0.12 [*D]
component mag. difference ΔM: 0.4 ± 0.3 [N18b]
rotation period RPs: ?

-- (523624) 2008 CT190 --discovery and notes:

Primary discovered 2008 Feb 09 from 0 by ?. Linked to prediscovery observations from 2002 Jan 14. Permanent number assigned 2018 Sep 25.

Companion discovered 2012 May 18 by Noll, K. S., W. M. Grundy, and S. D. Benecchi using Hubble Space Telescope observations from Hubble Space Telescope. Announced 2018 Apr 29 [N18b].

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:


© 2018, 2019 by Wm. Robert Johnston.
Last modified 29 May 2019.
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