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Asteroids with Satellites Database--Johnston's Archive
(5135) Nibutani
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: | 2.2390454431 AU | | orbital periodP: | 3.3503822719 yr (= 1223.7502369 d) | | eccentricitye: | 0.128332499 | | perihelion distanceq: | 1.951703146 AU | | aphelion distanceQ: | 2.52638774 AU | | inclinationi: | 3.3051849° | | argument of perihelionω: | 229.892085° | | ascending nodeΩ: | 35.458319° | | mean anomalyM: | 47.947127° | | perihelion passageTP: | 2019 Dec 20.013033 | | Epoch: | 2020 May 31 | | data arc: | 1969-2020(2833 obs.) | | Earth MOID: | 0.937965 AU | | Jupiter Tisserand invariantTJ: | 3.623 |
orbital data, secondary: | semimajor axisas: | 9.6 km[*E] | | separation/primary radiusas/rp: | 4.14 [*E] | | separation/Hill radiusas/rH: | 0.014 [*E] | | orbital periodPs: | 0.9057± 0.0002d [C20**] | | eccentricityes: | ? | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 13.5[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 4.82± 0.15 km [M11b] | | geometric albedo: | 0.527± 0.155[M11b] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | ? | | massm: | ? | | densityρ: | (1.6 g/cm3) [*A] | | Hill radiusrH: | 710 km [*E] |
other data, primary: | diameterdp: | 4.64± 0.15 km [*D] | | rotation periodRPp: | 2.818± 0.00006h [C20**] | | amplitude in mag., rotationalΔM: | 0.19 [C20**] | | amplitude in mag., mutual eventsΔM: | 0.12 ±0.04 [C20**] | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | 1.3± 0.1km [*D] | | diameter ratiods/dp: | 0.28± 0.02 [C20**] | | component mag. differenceΔM: | 2.76± 0.16 [*D] | | rotation periodRPs: | ? | |
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--(5135) Nibutani --discovery and notes:
Primary discovered1990 Oct 16from Kushiro, Japanby S. Ueda and H. Kaneda.Alternate designation(s):1990 UE, 1969 JG, 1982 DE, 1989 GV7.Linked to prediscovery observations from 1969 May 05.Permanent number assigned 1992 Mar 18.
Named 1996 Dec 24 for a valley in Hokkaido, Japan [MPC028621].
Companion discovered2020 Sepusinglightcurve observations.Announced2020 Oct 29.
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©2020, 2022by Wm. Robert Johnston.
Last modified30 April 2022Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
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