Movatterモバイル変換
[0]ホーム
Asteroids with Satellites Database--Johnston's Archive
(44620) 1999 RS43
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: | 2.176320153 AU | | orbital periodP: | 3.210585024 yr
(= 1172.688328 d) | | eccentricitye: | 0.164202154 | | perihelion distanceq: | 1.8189637 AU | | aphelion distanceQ: | 2.53367661 AU | | inclinationi: | 4.398687° | | argument of perihelionω: | 180.916159° | | ascending nodeΩ: | 182.017649° | | mean anomalyM: | 285.380881° | | perihelion passageTP: | 2015 Aug 09.069359 | | Epoch: | 2014 Dec 09 | | data arc: | 1998-2015(711 obs.) | | Earth MOID: | 0.816511 AU | | Jupiter Tisserand invariantTJ: | 3.663 |
orbital data, secondary: | semimajor axisas: | 2 km[*D] | | separation/primary radiusas/rp: | 6.2 [P15f] | | separation/Hill radiusas/rH: | 0.0059 [*E] | | orbital periodPs: | 1.401± 0.0004d [W17a] | | eccentricityes: | 0[P15f] | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 15.5[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 2.5 km [*E] | | geometric albedo: | (0.16) [*A] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | ? | | massm: | ? | | densityρ: | (1.6 g/cm3) [*A] | | Hill radiusrH: | 340 km [*E] |
other data, primary: | diameterdp: | 2.37 km [*E] | | rotation periodRPp: | 2.9± 0.5h [P15f] | | amplitude in mag., rotationalΔM: | ? | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | 0.81km [*E] | | diameter ratiods/dp: | 0.34± 0.02 [W17a] | | component mag. differenceΔM: | 2.34± 0.13 [*D] | | rotation periodRPs: | ? | |
|
--(44620) 1999 RS43 --discovery and notes:
Primary discovered1999 Sep 12from Vinjan, Croatiaby K. Korlevic.Alternate designation(s): 1999 HX81.Linked to prediscovery observations from 1998 Apr 21.Permanent number assigned 2002 Aug 22.
Companion discovered2014 by Pravec, P., P. Scheirich, P. Kusnirak, K. Hornoch, and A. Galadusinglightcurve observations.Announced2015 Aug 05 [P15f].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©2015, 2019by Wm. Robert Johnston.
Last modified29 May 2019.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
[8]ページ先頭