(7355)
Asteroids with Satellites Database--Johnston's Archive
(7355) Bottke
compiled by Wm. Robert Johnston
last updated 28 November 2023
--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 _orbital data, primary (osculating elements)_[JPL] :semimajor axis **a:**2.2586933642 AUorbital period **P:**3.394643063 yr (= 1239.8933787 d)eccentricity **e:**0.1649822486perihelion distance **q:**1.8860490542 AUaphelion distance **Q:**2.6313376742 AUinclination **i:**7.662996073°argument of perihelion **ω:**293.8039088°ascending node **Ω:**59.18786114°mean anomaly **M:**6.8500913°perihelion passage **TP:2023 Aug 20.4072697Epoch:2023 Sep 13data arc:1955-2023 (3306 obs.)Earth MOID:**0.896453 AUJupiter Tisserand invariant **TJ:**3.592 orbital data, secondary: semimajor axis **as:**15 km [*E]separation/primary radius **as/rp:**6.2 [*E]separation/Hill radius **as/rH:**0.021 [*E]orbital period **Ps:**1.702 ± 0.002 d [B23t]eccentricity es:?normalized ang. mom. αL:? | other data, system (combined): absolute mag. **H:**13.36 [MPC]slope parameter G: (0.15) [*A]effective diameter dE:5.11 ± 0.28 km [M**]geometric albedo:0.39 ± 0.052 [M**]color index U-B:?color index B-V:?taxonomic type:?mass m:?density ρ: (1.6 g/cm3) [*A]Hill radius **rH:**720 km [*E] other data, primary: diameter **dp:**4.81 km [*D]rotation period **RPp:**2.6364 ± 0.0002 h [B23t]amplitude in mag., rotational **ΔM:**0.26 [B23t]amplitude in mag., mutual events **ΔM:**0.13 [B23t]pole direction Β, λ:? , ? other data, secondary: diameter **ds:**>1.73 km [*D]diameter ratio **ds/dp:**>0.36 [B23t]component mag. difference ΔM:<2.2 [*D]rotation period RPs:? |
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-- (7355) Bottke --discovery and notes:
Primary discovered 1995 Apr 25 from Steward Observatory, Kitt Peak, Arizona, USA by Spacewatch Program. Alternate designation(s): 1995 HN2, A911 UG, 1955 SK, 1985 BN, 1994 BC5. Linked to prediscovery observations from 1955 Sep 17. Permanent number assigned 1996 Dec 24.
Named 1998 Aug 08 for William F. Bottke Jr. [MPC032348].
Companion discovered 2023 Oct 29 by Benishek, V., P. Pravec, D. Pray, and J. Oey using lightcurve observations from Sopot Observatory, Serbia; Sugarloaf Mountain Observatory, South Deerfield, Massachusetts, USA; Blue Mountains Observatory, Leura, New South Wales, Australia. Announced 2023 Nov 27 [B23t].
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© 2023 by Wm. Robert Johnston.
Last modified 28 November 2023.
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