(1509) Esclangona

and S/2003 (1509) 1 (original) (raw)

Asteroids with Satellites Database--Johnston's Archive


(1509) Esclangona_and_ S/2003 (1509) 1

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:_main belt asteroid, Hungaria _orbital data, primary (osculating elements)_[JPL] :semimajor axis **a:**1.8660946059 AUorbital period **P:**2.54922805 yr (= 931.1055453 d)eccentricity **e:**0.032131239perihelion distance **q:**1.806134673 AUaphelion distance **Q:**1.9260545383 AUinclination **i:**22.32426114°argument of perihelion **ω:**267.545077°ascending node **Ω:**283.5121643°mean anomaly **M:**45.040289°perihelion passage **TP:2021 Mar 06.507603Epoch:2021 Jul 01data arc:1938-2021 (2472 obs.)Earth MOID:**0.844747 AUJupiter Tisserand invariant **TJ:3.896 orbital data, secondary: binary dynamical type:**W [P07f]semimajor axis **as:**140 km (separation) [M03a]separation/primary radius **as/rp:**36.1 [*E]separation/Hill radius **as/rH:**0.13 [*E]orbital period **Ps:**23 d [*E]eccentricity es:?normalized ang. mom. **αL:**1.47 [M09a] other data, system (combined): absolute mag. **H:**12.59 [MPC]slope parameter G: (0.15) [*A]effective diameter **dE:8.17 ± 0.6 km [T04c]geometric albedo:**0.233 ± 0.038 [T04c]color index **U-B:**0.472 [T95a]color index **B-V:0.894 [T95a]taxonomic type:**S (Tholen) [JPL]mass m:?density ρ: (1.6 g/cm3) [*A]Hill radius **rH:**1100 km [*E] other data, primary: diameter **dp:**7.76 ± 0.57 km [*D]rotation period **RPp:**3.253 ± 0 h [W10c]amplitude in mag., rotational **ΔM:**0.12 [H03a]pole direction Β, λ:? , ? other data, secondary: diameter **ds:**2.57 km [*D]axial ratios **a/b, b/c:**1.29;? [P16d] diameter ratio **ds/dp:**0.331 [M03a]component mag. difference **ΔM:**2.40 [*D]rotation period **RPs:**6.6422 ± 0.0004 h [P16d]

-- (1509) Esclangona and S/2003 (1509) 1 --discovery and notes:

Primary discovered 1938 Dec 21 from Nice, France by A. Patry. Alternate designation(s): 1938 YG. Permanent number assigned 1940 Oct 30.

Named - for Ernest Esclangon (1876-1954) [-].

Companion discovered 2003 Feb 13 by W. J. Merline, L. M. Close, P. M. Tamblyn, F. Menard, C. R. Chapman, C. Dumas, G. Duvert, W. M. Owen, D. C. Slater, and M. F. Sterzik using adaptive optics telescope observations from Very Large Telescope, European Southern Observatory, Cerro Paranal, Chile. Announced 2003 Feb 18 [M03a]. Provisional designation S/2003 (1509) 1.

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--Links to ADS abstracts:


© 2003-2014, 2021 by Wm. Robert Johnston.
Last modified 9 October 2021.
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