(3982)
Asteroids with Satellites Database--Johnston's Archive
(3982) Kastel
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 _orbital data, primary (osculating elements)_[JPL] :semimajor axis **a:**2.258873671 AUorbital period **P:**3.39504952 yr (= 1240.0418488 d)eccentricity **e:**0.219268861perihelion distance **q:**1.763573013 AUaphelion distance **Q:**2.7541743286 AUinclination **i:**5.29777432°argument of perihelion **ω:**51.0412135°ascending node **Ω:**251.8786419°mean anomaly **M:**275.560134°perihelion passage **TP:2022 Apr 17.858243Epoch:2021 Jul 01data arc:1930-2021 (3225 obs.)Earth MOID:**0.753547 AUJupiter Tisserand invariant **TJ:3.584 orbital data, secondary: binary dynamical type:**A [L15a]semimajor axis as:?orbital period Ps:?eccentricity es:?normalized ang. mom. αL:? | other data, system (combined): absolute mag. **H:**12.95 [MPC]slope parameter G: (0.15) [*A]effective diameter dE:6.79 ± 0.36 km [M11b]geometric albedo:0.201 ± 0.031 [M11b]color index U-B:?color index B-V:?taxonomic type:?mass m:?density ρ: (1.6 g/cm3) [*A]Hill radius **rH:**930 km [*E] other data, primary: diameter **dp:**6.79 ± 0.36 km [M11b]rotation period **RPp:**8.4865 h [P16d]amplitude in mag., rotational **ΔM:**0.27 [P16d]pole direction Β, λ:? , ? other data, secondary: diameter ds:?diameter ratio ds/dp:?component mag. difference ΔM:?rotation period **RPs:**5.8358 h [P16d] |
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-- (3982) Kastel --discovery and notes:
Primary discovered 1984 May 02 from Nauchnyj, Crimea, Ukraine, USSR by L. G. Karachkina. Alternate designation(s): 1984 JP1, 1930 MF, 1947 NE, 1954 RC, 1978 TT5. Linked to prediscovery observations from 1930 Jun 23. Permanent number assigned 1989 Feb 20.
Named 1991 May 28 for Galina Richardovna Kastel' [MPC018306].
Companion discovered 2005 Sep 24 by P. Pravec, P. Kusnirak, L. Kornos, J. Vilagi, D. Pray, R. Durkee, W. Cooney, J. Gross, and D. Terrell using lightcurve observations from Ondrejov Observatory, Czech Republic; Modra Observatory, Slovakia; Coventry, Rhode Island, USA; Shed of Science Observatory, Minneapolis, Minnesota, USA; Sonoita Research Observatory, Sonoita, Arizona, USA. Announced 2005 Oct 01 [P05a].
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© 2005-2014, 2021 by Wm. Robert Johnston.
Last modified 9 October 2021.
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