Asteroids with Satellites Database--Johnston's Archive

(15822) 1994 TV15

compiled by Wm. Robert Johnston
last updated 21 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: main belt asteroid, inner


orbital data, primary (osculating elements) [JPL] :
semimajor axis a: 1.948072364 AU
orbital period P: 2.719041462 yr
(= 993.1298942 d)
eccentricity e: 0.079700666
perihelion distance q: 1.79280970 AU
aphelion distance Q: 2.103335028 AU
inclination i: 22.0224036°
argument of perihelion ω: 149.892746°
ascending node Ω: 190.886232°
mean anomaly M: 99.222525°
perihelion passage TP: 2013 Aug 22.2754
Epoch: 2014 May 23
data arc: 1953-2014 (728 obs.)
Earth MOID: 0.801831 AU
Jupiter Tisserand invariant TJ: 3.802


orbital data, secondary:
semimajor axis as: 3.3 km [*E]
separation/primary radius as/rp:3.9 [*E]
separation/Hill radius as/rH:0.014 [*E]
orbital period Ps: 0.8388 ± 0.0004 d [W14a]
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 14.5 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 1.72 ± 0.3 km [M11b]
geometric albedo: 1 ± 0.18 [M11b]
color index U-B: ?
color index B-V: ?
taxonomic type: ?
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 240 km [*E]

other data, primary:
diameter dp: 1.69 ± 0.3 km [*D]
rotation period RPp: 2.96 ± 0.000 h [W14a]
amplitude in mag., rotational ΔM: ?
pole direction Β, λ: ? , ?


other data, secondary:
diameter ds: 0.32 ± 0.07 km [*D]
diameter ratio ds/dp: >0.19 ± 0.02 [W14a]
component mag. difference ΔM: <3.6 ± 0.2 [*D]
rotation period RPs: ?

-- (15822) 1994 TV15 --discovery and notes:

Primary discovered 1994 Oct 08 from Palomar Observatory, California, USA by E. F. Helin. Alternate designation(s): 1999 JL6. Linked to prediscovery observations from 1953 Aug 16. Permanent number assigned 2000 Jul 26.

Companion discovered 2010 Jun 22 using lightcurve observations. Announced 2010 Dec 20.

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:


© 2010-2012, 2014 by Wm. Robert Johnston.
Last modified 21 September 2014.
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