Asteroids with Satellites Database--Johnston's Archive

2015 QL14

compiled by Wm. Robert Johnston
last updated 15 March 2018

--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

orbital data, primary (osculating elements) [JPL] :
semimajor axis a: 43.698 AU
orbital period P: 288.87 yr
(= 105508 d)
eccentricity e: 0.1146
perihelion distance q: 38.69 AU
aphelion distance Q: 48.705 AU
inclination i: 12.19921°
argument of perihelion ω: 352.38°
ascending node Ω: 26.303°
mean anomaly M: 303.14°
perihelion passage TP: 2063 Nov 07
Epoch: 2018 Mar 23
data arc: 2015-2017 (16 obs.)
Earth MOID: 37.6922 AU
Jupiter Tisserand invariant TJ: 5.747

orbital data, secondary:
semimajor axis as: ?
orbital period Ps: ?
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 7 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 180 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: 520000 km [*E]

other data, primary:
diameter dp: 180 km [*E]
rotation period RPp: ?
amplitude in mag., rotational ΔM: ?
pole direction Β, λ: ? , ?

other data, secondary:
diameter ds: ?
diameter ratio ds/dp: ?
component mag. difference ΔM: ?
rotation period RPs: ?

-- 2015 QL14 --discovery and notes:

Primary discovered 2015. Linked to prediscovery observations from 2015 Aug 16.

Companion discovered by S. S. Sheppard using observations. Announced 2018 Mar 07 [S18c].

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:

© 2018 by Wm. Robert Johnston.
Last modified 15 March 2018.
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