Asteroids with Satellites Database--Johnston's Archive

2002 BM26

compiled by Wm. Robert Johnston
last updated 20 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: NEA, Amor (PHA)

orbital data, primary (osculating elements) [JPL] :
semimajor axis a: 1.832461461 AU
orbital period P: 2.480621346 yr
(= 906.0469468 d)
eccentricity e: 0.444462980
perihelion distance q: 1.018000178 AU
aphelion distance Q: 2.646922743 AU
inclination i: 16.215135°
argument of perihelion ω: 180.432117°
ascending node Ω: 319.6535528°
mean anomaly M: 340.597789°
perihelion passage TP: 2014 Jul 10.83142
Epoch: 2014 May 23
data arc: 2002-2007 (243 obs.)
Earth MOID: 0.0314863 AU
Jupiter Tisserand invariant TJ: 3.86

orbital data, secondary:
semimajor axis as: 1.4 km [*E]
separation/primary radius as/rp:4.7 [*E]
separation/Hill radius as/rH:0.029 [*E]
orbital period Ps: 1.075 ± 0.012 d [B06c]
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 20.1 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 0.61 km [*D]
geometric albedo: 0.05 [D03a]
color index U-B: ?
color index B-V: ?
taxonomic type: X (SMASSII) [JPL]
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 48 km [*E]

other data, primary:
diameter dp: 0.6 ± 0.03 km [N02a]
rotation period RPp: 2.7 h [N02a]
amplitude in mag., rotational ΔM: ?
pole direction Β, λ: ? , ?

other data, secondary:
diameter ds: 0.1 ± 0.03 km [N02a]
diameter ratio ds/dp: 0.167 ± 0.051 [*D]
component mag. difference ΔM: 3.9 [* D]
rotation period RPs: ?

-- 2002 BM26 --discovery and notes:

Primary discovered 2002 Jan 26 from Lincoln Laboratory ETS, New Mexico, USA by LINEAR.

Companion discovered 2002 Feb 09 by M. C. Nolan, E. S. Howell, C. Magri, B. Beeney, D. B. Campbell, L. A. M. Benner, S. J. Ostro, J. D. Giorgini, and J.-L. Margot using radar observations from Arecibo Observatory, Puerto Rico. Announced 2002 Feb 11 [N02a].

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:

© 2002-2007, 2014 by Wm. Robert Johnston.
Last modified 20 September 2014.
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