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Asteroids with Satellites Database--Johnston's Archive
(2006) Polonskaya
compiled by Wm. Robert Johnston
last updated21 September 2014--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: | 2.323905449 AU | | orbital periodP: | 3.542712288 yr
(= 1293.9756630 d) | | eccentricitye: | 0.193374097 | | perihelion distanceq: | 1.87452233 AU | | aphelion distanceQ: | 2.773288566 AU | | inclinationi: | 4.9188122° | | argument of perihelionω: | 24.400049° | | ascending nodeΩ: | 0.988172° | | mean anomalyM: | 160.449899° | | perihelion passageTP: | 2012 Oct 23.28259 | | Epoch: | 2014 May 23 | | data arc: | 1950-2014(1209 obs.) | | Earth MOID: | 0.878115 AU | | Jupiter Tisserand invariantTJ: | 3.546 |
orbital data, secondary: | binary dynamical type: | A [P07f] | | semimajor axisas: | 8.5 km[*E] | | separation/primary radiusas/rp: | 3.8 [*E] | | separation/Hill radiusas/rH: | 0.013 [*E] | | orbital periodPs: | 0.7979± 0.0008d [P05c] | | eccentricityes: | ? | | normalized ang. mom.αL: | 0.87[P07f] |
| other data, system (combined):| absolute mag.H: | 12.9[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 4.62± 0.16 km [M11b] | | geometric albedo: | 0.354± 0.096[M11b] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | ? | | massm: | ? | | densityρ: | (1.6 g/cm3) [*A] | | Hill radiusrH: | 660 km [*E] |
other data, primary: | diameterdp: | 4.51± 0.16 km [*D] | | rotation periodRPp: | 3.118± 0.000h [P05c] | | amplitude in mag., rotationalΔM: | 0.08 [P05c] | | amplitude in mag., mutual eventsΔM: | 0.06 [P05c] | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | 0.99km [*D] | | diameter ratiods/dp: | >0.22 [P05c] | | component mag. differenceΔM: | <3.3 [*D] | | rotation periodRPs: | 6.6571± 0.0002h [P09d] | |
|
--(2006) Polonskaya --discovery and notes:
Primary discovered1973 Sep 22from Nauchnyj, Crimea, Ukraine, USSRby N. S. Chernykh.Alternate designation(s):1973 SB3, 1941 SD, 1948 QH, 1966 VC.Linked to prediscovery observations from 1950 Apr 17.Permanent number assigned -.
Named - for Elena Ivanovna Kazimirchak-Polonskaya [MPC4481].
Companion discovered2005 Nov 01 by D. Pray, P. Pravec, P. Kusnirak, W. Cooney, J. Gross, and D. Terrellusinglightcurve observations from Greene, Rhode Island, USA; Ondrejov Observatory, Czech Republic; Sonoita Research Observatory, Sonoita, Arizona, USA.Announced2005 Nov 10 [P05c].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Pray, D., Pravec, P., Kusnirak, P., Cooney, W., Gross, J., & Terrell, D. 2005, International Astronomical Union Circular(2006) Polonskaya
©2005-2008, 2014by Wm. Robert Johnston.
Last modified21 September 2014.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
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