(10737)

Bruck (original) (raw)

Asteroids with Satellites Database--Johnston's Archive

(10737) Bruck

compiled by Wm. Robert Johnston
last updated 21 March 2024

--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:_Mars crossing asteroid _orbital data, primary (osculating elements)_[JPL] :semimajor axis **a:**1.9048150288 AUorbital period **P:**2.628980808 yr (= 960.23524012 d)eccentricity **e:**0.13013017487perihelion distance **q:**1.656941116 AUaphelion distance **Q:**2.15268894161 AUinclination **i:**19.174534241°argument of perihelion **ω:**104.96315245°ascending node **Ω:**176.17784628°mean anomaly **M:**74.4271197°perihelion passage **TP:2023 Feb 26.4790469Epoch:2023 Sep 13data arc:1988-2024 (4228 obs.)Earth MOID:**0.733102 AUJupiter Tisserand invariant **TJ:**3.865 orbital data, secondary: semimajor axis **as:**4.4 km [*E]separation/primary radius **as/rp:**3.3 [*E]separation/Hill radius **as/rH:**0.013 [*E]orbital period **Ps:**0.6413 ± 0.0004 d [W24a]eccentricity es:?normalized ang. mom. αL:? other data, system (combined): absolute mag. **H:**15.41 [MPC]slope parameter G: (0.15) [*A]effective diameter dE:2.73 km [*E]geometric albedo: (0.16 ) [*A]color index U-B:?color index B-V:?color index J-H:0.629 ± 0.302 [S10b] taxonomic type:?mass m:?density ρ: (1.6 g/cm3) [*A]Hill radius **rH:**350 km [*E] other data, primary: diameter **dp:**2.67 km [*E]rotation period **RPp:**2.3446 ± 0.0006 h [W24a]amplitude in mag., rotational **ΔM:**0.07 [W24a]amplitude in mag., mutual events **ΔM:**0.13 [W24a]pole direction Β, λ:? , ? other data, secondary: diameter **ds:**>0.59 km [*E]diameter ratio **ds/dp:**>0.22 ± 0.02 [W24a]component mag. difference ΔM:<3.3 ± 0.2 [*D]rotation period RPs:?

-- (10737) Bruck --discovery and notes:

Primary discovered 1988 Feb 25 from Siding Spring Observatory, New South Wales, Australia by R. H. McNaught. Alternate designation(s): 1988 DZ4, 1996 EX. Linked to prediscovery observations from 1988 Feb 23. Permanent number assigned 1999 Jun 22.

Named 2014 Aug 10 for Hermann Alexander Bruck (1905-2000) [MPC089388].

Companion discovered 2023 Oct 04 by B. D. Warner using lightcurve observations from Center for Solar System Studies, Landers, California, USA. Announced 2024 Mar 18 [W24a].

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--Links to ADS abstracts:

© 2024, 2024 by Wm. Robert Johnston.
Last modified 21 March 2024.
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