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Asteroids with Satellites Database--Johnston's Archive
2004 KH19
compiled by Wm. Robert Johnston
last updated20 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:TNO
orbital data, primary (osculating elements)[JPL]: | semimajor axisa: | 40.761 AU | | orbital periodP: | 260.242 yr
(= 95053.2 d) | | eccentricitye: | 0.11906 | | perihelion distanceq: | 35.908 AU | | aphelion distanceQ: | 45.614 AU | | inclinationi: | 35.2592° | | argument of perihelionω: | 226.10° | | ascending nodeΩ: | 232.96092° | | mean anomalyM: | 133.55° | | perihelion passageTP: | 1917 Nov 05 | | Epoch: | 2014 May 23 | | data arc: | 2004-2009(20 obs.) | | Earth MOID: | 35.0112 AU | | Jupiter Tisserand invariantTJ: | 4.666 | | Neptune Tisserand invariantTN: | 2.63 [*D] |
orbital data, secondary: | semimajor axisas: | 13000 km (separation) [S12b] | | separation/primary radiusas/rp: | 150 [*E] | | separation/Hill radiusas/rH: | 0.027 [*E] | | orbital periodPs: | 210d [*E] | | eccentricityes: | ? | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 6.5[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 221 km [*E] | | geometric albedo: | (0.09) [*A] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | ? | | massm: | ? | | densityρ: | (1 g/cm3) [*A] | | Hill radiusrH: | 480000 km [*E] |
other data, primary: | diameterdp: | 179 km [*E] | | rotation periodRPp: | ? | | amplitude in mag., rotationalΔM: | ? | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | 129km [*E] | | diameter ratiods/dp: | 0.721 [S12b] | | component mag. differenceΔM: | 0.72 [S12b] | | rotation periodRPs: | ? | |
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-- 2004 KH19 --discovery and notes:
Primary discovered2004 May 24from Mauna Kea Observatory, Hawaii, USAby B. Gladman.
Companion discovered-usingimaging observations.Announced2011 Dec 12.
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©2011-2013, 2014by Wm. Robert Johnston.
Last modified20 September 2014.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
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