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Asteroids with Satellites Database--Johnston's Archive
(190166) 2005 UP156
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:NEA, Amor
orbital data, primary (osculating elements)[JPL]: | semimajor axisa: | 2.115549502 AU | | orbital periodP: | 3.077051662 yr
(= 1123.914346 d) | | eccentricitye: | 0.469603066 | | perihelion distanceq: | 1.12208097 AU | | aphelion distanceQ: | 3.109018033 AU | | inclinationi: | 4.2083056° | | argument of perihelionω: | 91.155853° | | ascending nodeΩ: | 193.406532° | | mean anomalyM: | 18.5392629° | | perihelion passageTP: | 2017 Jul 08.120712 | | Epoch: | 2017 Sep 04 | | data arc: | 2002-2017(803 obs.) | | Earth MOID: | 0.131551 AU | | Jupiter Tisserand invariantTJ: | 3.582 |
orbital data, secondary: | semimajor axisas: | 2.7 km[T19a] | | orbital periodPs: | 1.689± 0.0003d [T17b] | | eccentricityes: | ? | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 17.1[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 1.05± 0.03 km [N15e] | | geometric albedo: | 0.234± 0.033[N15e] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | ? | | massm: | ? | | densityρ: | 1.6 g/cm3[T19a] | | Hill radiusrH: | 81 km [*E] |
other data, primary: | diameterdp: | 0.74 km [*D] | | rotation periodRPp: | 40.542± 0.008h [T17b] | | amplitude in mag., rotationalΔM: | 1.05 [B17d] | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | 0.74km [*D] | | diameter ratiods/dp: | 1.0 [T19b] | | component mag. differenceΔM: | 0.0 [*D] | | rotation periodRPs: | ? | |
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--(190166) 2005 UP156 --discovery and notes:
Primary discovered2005 Oct 31from Kitt Peak Observatory, Arizona, USAby Spacewatch.Linked to prediscovery observations from 2002 Nov 24.Permanent number assigned 2008 Aug 19.
Companion discovered2017 May by B. D. Warner and A. W. Harrisusinglightcurve observations.Announced2017 Sep.
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©2017-2019, 2022by Wm. Robert Johnston.
Last modified30 April 2022.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
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