Asteroids with Satellites Database--Johnston's Archive

(620082) 2014 QL433

compiled by Wm. Robert Johnston
last updated 16 August 2023

--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: NEA, Apollo (PHA)

orbital data, primary (osculating elements) [JPL] :
semimajor axis a: 2.090202254 AU
orbital period P: 3.021973628 yr
(= 1103.775867 d)
eccentricity e: 0.71767202
perihelion distance q: 0.59012257 AU
aphelion distance Q: 3.590281935 AU
inclination i: 4.43338°
argument of perihelion ω: 260.423098°
ascending node Ω: 322.780166°
mean anomaly M: 28.4538022°
perihelion passage TP: 2023 Jun 17.759388
Epoch: 2023 Sep 13
data arc: 2014-2020 (223 obs.)
Earth MOID: 0.00984459 AU
Jupiter Tisserand invariant TJ: 3.369

orbital data, secondary:
semimajor axis as: 0.48 ± 0.03 km [B23n]
separation/primary radius as/rp:3.2 [*D]
separation/Hill radius as/rH:0.029 [*E]
orbital period Ps: 0.477 ± 0.01 d [B23n]
eccentricity es: 0.0 [B23n]
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 19.87 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 0.34 km [*D]
geometric albedo: 0.17 [*D]
color index U-B: ?
color index B-V: ?
taxonomic type: ?
mass m: 3.8x1010 ± 7x109 kg [B23n]
density ρ: 2.4 g/cm3[*D]
Hill radius rH: 16 km [*E]

other data, primary:
diameter dp: 0.3 km [B23n]
rotation period RPp: ?
amplitude in mag., rotational ΔM: ?
pole direction Β, λ: ? , ?

other data, secondary:
diameter ds: 0.15 km [B23n]
diameter ratio ds/dp: 0.5 [*D]
component mag. difference ΔM: 1.5 [*D]
rotation period RPs: 11.45 ± 0.25 h [B23n]

-- (620082) 2014 QL433 --discovery and notes:

Primary discovered 2014 Aug 31 from Haleakala, Hawaii, USA by PanSTARRS 1 program. Linked to prediscovery observations from 2014 Aug 29. Permanent number assigned 2023 Apr 07.

Companion discovered 2023 Aug 03 by L. A. M. Benner et al. using radar observations from Goldstone Observatory, California, USA. Announced 2023 Aug 04 [B23m].

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:

© 2023 by Wm. Robert Johnston.
Last modified 16 August 2023.
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