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Asteroids with Satellites Database--Johnston's Archive
(6369) 1983 UC
compiled by Wm. Robert Johnston
last updated29 May 2019--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: | 2.293215745 AU | | orbital periodP: | 3.472700842 yr
(= 1268.427938 d) | | eccentricitye: | 0.142830617 | | perihelion distanceq: | 1.96567432 AU | | aphelion distanceQ: | 2.620757165 AU | | inclinationi: | 5.9878451° | | argument of perihelionω: | 351.449376° | | ascending nodeΩ: | 35.559477° | | mean anomalyM: | 347.703373° | | perihelion passageTP: | 2015 Jan 21.326069 | | Epoch: | 2014 Dec 09 | | data arc: | 1954-2015(982 obs.) | | Earth MOID: | 0.970288 AU | | Jupiter Tisserand invariantTJ: | 3.576 |
orbital data, secondary: | semimajor axisas: | 15 km[*E] | | separation/primary radiusas/rp: | 6.2 [*E] | | separation/Hill radiusas/rH: | 0.020 [*E] | | orbital periodPs: | 1.658± 0.0004d [W17a] | | eccentricityes: | 0[P15f] | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 14.2[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 5.17± 1.24 km [R15a] | | geometric albedo: | 0.138± 0.033[R15a] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | ? | | massm: | ? | | densityρ: | (1.6 g/cm3) [*A] | | Hill radiusrH: | 750 km [*E] |
other data, primary: | diameterdp: | 4.86± 1.17 km [] | | rotation periodRPp: | 2.397± 0h [W17a] | | amplitude in mag., rotationalΔM: | ? | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | 1.75± 0.43 | | diameter ratiods/dp: | 0.36± 0.02 [W17a] | | component mag. differenceΔM: | 2.22± 0.12 [*D] | | rotation periodRPs: | ? | |
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--(6369) 1983 UC --discovery and notes:
Primary discovered1983 Oct 16from Klet, Czech Republicby Z. Vavrova.Alternate designation(s): 1969 UT1, 1990 TC8.Linked to prediscovery observations from 1954 Apr 08.Permanent number assigned 1995 May 14.
Companion discovered2013 Apr 08 by Pravec, P., P. Scheirich, P. Kusnirak, K. Hornoch, and A. Galadusinglightcurve observations.Announced2015 Aug 05 [P15f].
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©2015, 2019by Wm. Robert Johnston.
Last modified29 May 2019.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
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