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Asteroids with Satellites Database--Johnston's Archive
(6384) Kervin
compiled by Wm. Robert Johnston
last updated16 July 2017--Orbital and physical data--
(Seethis page for definitions of quantities; source codes in brackets, seethis link for full references; *A, *D, and *E indicate assumed, derived, and estimated values, respectively.)
dynamical type, primary:main belt asteroid, inner
orbital data, primary (osculating elements)[JPL]: | semimajor axisa: | 1.9363941219 AU | | orbital periodP: | yr
(= 984.2129165 d) | | eccentricitye: | 0.076898635 | | perihelion distanceq: | 1.78748806 AU | | aphelion distanceQ: | 2.085300186 AU | | inclinationi: | 26.2896633° | | argument of perihelionω: | 265.736551° | | ascending nodeΩ: | 76.848863° | | mean anomalyM: | 317.108782° | | perihelion passageTP: | 2017 Dec 30.26136 | | Epoch: | 2017 Sep 04 | | data arc: | 1989-2017(1039 obs.) | | Earth MOID: | 0.875039 AU | | Jupiter Tisserand invariantTJ: | 3.778 |
orbital data, secondary: | semimajor axisas: | 6.1 km[*E] | | separation/primary radiusas/rp: | 3.4 [*E] | | separation/Hill radiusas/rH: | 0.012 [*E] | | orbital periodPs: | 0.6642± 0.0004d [W16b] | | eccentricityes: | ? | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 13.8[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 3.74± 0.77 km [M12b] | | geometric albedo: | 0.503± 0.21[M12b] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | ? | | massm: | ? | | densityρ: | (1.6 g/cm3) [*A] | | Hill radiusrH: | 510 km [*E] |
other data, primary: | diameterdp: | 3.6 km [*D] | | rotation periodRPp: | 3.6194± 0.0001h [W16b] | | amplitude in mag., rotationalΔM: | 0.06± 0.01 [W16b] | | amplitude in mag., mutual eventsΔM: | 0.03 ±0.01 [W16b] | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | >1.1km [*D] | | diameter ratiods/dp: | >0.3 [W16b] | | component mag. differenceΔM: | 2.6 [*D] | | rotation periodRPs: | ? | |
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--(6384) Kervin --discovery and notes:
Primary discovered1989 Jan 03from Palomar Observatory, California, USAby E. F. Helin.Alternate designation(s):1989 AM, 1990 KS.Permanent number assigned 1995 May 14.
Named 1996 Apr 04 for Paul W. Kervin (?-) [MPC26931].
Companion discovered2015 by B. D. Warner, A. A. Maciasusinglightcurve observations.Announced2016 Mar [W16b].
--Links, more technical:
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--Links to ADS abstracts:
©2017by Wm. Robert Johnston.
Last modified16 July 2017.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
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