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Asteroids with Satellites Database--Johnston's Archive
(6009) Yuzuruyoshii
compiled by Wm. Robert Johnston
last updated30 April 2022--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
orbital data, primary (osculating elements)[JPL]: | semimajor axisa: | 2.4373435119 AU | | orbital periodP: | 3.8051791857 yr
(= 1389.8679469 d) | | eccentricitye: | 0.151174245 | | perihelion distanceq: | 2.068879947 AU | | aphelion distanceQ: | 2.805807077 AU | | inclinationi: | 22.72851062° | | argument of perihelionω: | 78.3200529° | | ascending nodeΩ: | 213.2568577° | | mean anomalyM: | 2.9233269° | | perihelion passageTP: | 2021 Jun 19.713782 | | Epoch: | 2021 Jul 01 | | data arc: | 1957-2021(2796 obs.) | | Earth MOID: | 1.17118 AU | | Jupiter Tisserand invariantTJ: | 3.383 |
orbital data, secondary: | semimajor axisas: | 33 km[*E] | | separation/primary radiusas/rp: | 6.7 [*E] | | separation/Hill radiusas/rH: | 0.021 [*E] | | orbital periodPs: | 1.83625± 0.00014d [W21a] | | eccentricityes: | ? | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 12.93[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 10.32± 0.25 km [M12b] | | geometric albedo: | 0.151± 0.025[M12b] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | ? | | massm: | ? | | densityρ: | (1.6 g/cm3) [*A] | | Hill radiusrH: | 1600 km [*E] |
other data, primary: | diameterdp: | 9.91± 0.24 km [*D] | | rotation periodRPp: | 3.03067± 0.00003h [W21a] | | amplitude in mag., rotationalΔM: | 0.27± 0.01 [W21a] | | amplitude in mag., mutual eventsΔM: | 0.27 ±0.03 [W21a] | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | >2.87km [*D] | | diameter ratiods/dp: | >0.29 [W21a] | | component mag. differenceΔM: | <2.7 [*D] | | rotation periodRPs: | ? | |
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--(6009) Yuzuruyoshii --discovery and notes:
Primary discovered1990 Mar 24from Palomar Observatory, California, USAby E. F. Helin.Alternate designation(s):1990 FQ1, 1952 HE3, 1957 WJ1.Linked to prediscovery observations from 1957 Nov 27.Permanent number assigned 1994 Jun 22.
Named 2012 Oct 29 for Yuzuru Yoshii (1951-) [MPC081058].
Companion discovered2021 May 21 by B. D. Warner, R. D. Stephens, D. R. Coleyusinglightcurve observations from Center for Solar System Studies, Landers, California, United States.Announced2021 Sep [W21a].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©2021, 2022by Wm. Robert Johnston.
Last modified30 April 2022.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
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