Movatterモバイル変換
[0]ホーム
Asteroids with Satellites Database--Johnston's Archive
(4296) Van Woerkom
compiled by Wm. Robert Johnston
last updated27 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: | 2.2487558164 AU | | orbital periodP: | 3.372200974 yr
(= 1231.7196683 d) | | eccentricitye: | 0.165864138 | | perihelion distanceq: | 1.87576787 AU | | aphelion distanceQ: | 2.6217437606 AU | | inclinationi: | 6.1478296° | | argument of perihelionω: | 26.671687° | | ascending nodeΩ: | 13.107595° | | mean anomalyM: | 27.589428° | | perihelion passageTP: | 2016 Nov 13.604331 | | Epoch: | 2017 Feb 16 | | data arc: | 1935-2017(1474 obs.) | | Earth MOID: | 0.885707 AU | | Jupiter Tisserand invariantTJ: | 3.603 |
orbital data, secondary: | semimajor axisas: | 17 km[*E] | | separation/primary radiusas/rp: | 4.7 [*E] | | separation/Hill radiusas/rH: | 0.016 [*D] | | orbital periodPs: | 1.093d [W17a] | | eccentricityes: | ? | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 13.2[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 7.56 km [*E] | | geometric albedo: | (0.16) [*A] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | ? | | massm: | ? | | densityρ: | (1.6 g/cm3) [*A] | | Hill radiusrH: | 1100 km [*E] |
other data, primary: | diameterdp: | 7.24 km [*E] | | rotation periodRPp: | 2.809± 0.002h [O17a] | | amplitude in mag., rotationalΔM: | 0.2 [O17a] | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | 2.17km [*E] | | diameter ratiods/dp: | 0.3 [O17a] | | component mag. differenceΔM: | 2.6 [*D] | | rotation periodRPs: | ? | |
|
--(4296) Van Woerkom --discovery and notes:
Primary discovered1935 Sep 28from Johannesburg, South Africaby H. van Gent.Alternate designation(s):1935 SA2, 1972 TE5, 1979 WB3.Permanent number assigned 1990 Jan 11.
Named 1991 Apr 28 for A. J. J. van Woerkom [MPC018140].
Companion discovered2016 Nov 29 by P. Pravec, C. Odden, et al.usinglightcurve observations.Announced2017 Jan 08 [P17c].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©2017, 2019by Wm. Robert Johnston.
Last modified27 May 2019.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
[8]ページ先頭