Asteroids with Satellites Database--Johnston's Archive

(138095) 2000 DK79

compiled by Wm. Robert Johnston
last updated 9 October 2021

--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, Amor (PHA)

orbital data, primary (osculating elements) [JPL] :
semimajor axis a: 1.7766897155 AU
orbital period P: 2.368239306 yr
(= 864.9994065 d)
eccentricity e: 0.414387985
perihelion distance q: 1.040450844 AU
aphelion distance Q: 2.5129285869 AU
inclination i: 60.6777308°
argument of perihelion ω: 2.5546059°
ascending node Ω: 43.4575671°
mean anomaly M: 79.0219074°
perihelion passage TP: 2020 Dec 23.128047
Epoch: 2021 Jul 01
data arc: 1986-2021 (669 obs.)
Earth MOID: 0.0494557 AU
Jupiter Tisserand invariant TJ: 3.45

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

other data, system (combined):
absolute mag. H: 15.99 [MPC]
15.94 ± 0.02 [H13a]
slope parameter G: (0.15) [*A]
effective diameter dE: 1.36 ± 0.63 km [N16b]
geometric albedo: (0.16 ) [*A]
color index U-B: ?
color index B-V: ?
color index V-R:0.455 ± 0.018 [H13a]
color index B-R:1.223 ± 0.024 [H13a]
color index V-I:0.751 [H13a]
taxonomic type: ?
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 110 km [*E]

other data, primary:
diameter dp: 1.36 ± 0.63 km [N16b]
rotation period RPp: 4.243 ± 0.001 h [W14d]
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: ?

-- (138095) 2000 DK79 --discovery and notes:

Primary discovered 2000 Feb 26 from Socorro, New Mexico, USA by LINEAR Program. Linked to prediscovery observations from 1986 Apr 09. Permanent number assigned 2006 Dec 05.

Companion discovered 2013 Nov 13 using radar observations from Arecibo Observatory, Puerto Rico. Announced 2013 Nov .

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:

© 2013-2014, 2021 by Wm. Robert Johnston.
Last modified 9 October 2021.
Return to Home. Return to Astronomy and Space. Return to Asteroids with Satellites.