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Asteroids with Satellites Database--Johnston's Archive
(525462) 2005 EO304
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:TNO, Cubewano
orbital data, primary (osculating elements)[JPL]: | semimajor axisa: | 45.90046 AU | | orbital periodP: | 310.9751 yr
(= 113585.8 d) | | eccentricitye: | 0.073992 | | perihelion distanceq: | 42.5042 AU | | aphelion distanceQ: | 49.2967 AU | | inclinationi: | 3.412274° | | argument of perihelionω: | 148.8134° | | ascending nodeΩ: | 94.0002° | | mean anomalyM: | 330.3262° | | perihelion passageTP: | 2044 Dec 13.6 | | Epoch: | 2019 Apr 27 | | data arc: | 2000-2018(113 obs.) | | Earth MOID: | 41.4918 AU | | Jupiter Tisserand invariantTJ: | 6.027 | | Neptune Tisserand invariantTN: | 3.115 [*D] |
orbital data, secondary: | semimajor axisas: | 69800± 2050 km[P11a] | | separation/primary radiusas/rp: | 920 [*D] | | separation/Hill radiusas/rH: | 0.155 [*D] | | orbital periodPs: | 3579± 164d [P11a] | | eccentricityes: | 0.22± 0.02[P11a] | | inclinationis: | 12.4° ± 0.65° [P11a] | | ascending nodeΩs: | 259° ± 2.5° [P11a] | | argument of pericenterωs: | 206° ± 7° [P11a] | | mean anomalyM: | 193° ± 10.5° [P11a] | | Epoch: | 2005 Mar 11.44 | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 6.2[MPC]
6.59 [P11a] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 171 km [*D] | | geometric albedo: | 0.15± 0.01/0.01[P11a] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | ? | | massm: | 2.1x1018 ± 8.05x1016kg [P11a] | | densityρ: | (1 g/cm3) [*A] | | Hill radiusrH: | 450000 km [*D] |
other data, primary: | diameterdp: | 152.4± 2/1.8 km [P11a] | | color indexV-I: | 1.43 ± 0.14 [B08d] | | rotation periodRPp: | ? | | amplitude in mag., rotationalΔM: | ? | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | 78± 1.5/1.4km [*D] | | diameter ratiods/dp: | 0.513± 0.007 [P11a] | | component mag. differenceΔM: | 1.45± 0.03 [P11a] | | color indexV-I: | 1.36± 0.19 [B08d] | | rotation periodRPs: | ? | |
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--(525462) 2005 EO304 --discovery and notes:
Primary discovered2005 Mar 11from Kitt Peak Observatory, Arizona, USAby M. W. Buie.Linked to prediscovery observations from 2000 May 04.Permanent number assigned 2019 May 18.
Companion discovered2005 Apr 15 by S. D. Kern and J. L. Elliotusingimaging observations from Clay Telescope, Las Campanas Observatory, Chile.Announced2005 May 10 [K05b].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Kern, S. D. & Elliot, J. L. 2005, International Astronomical Union Circular2005 EO_304
©2005-2014, 2019by Wm. Robert Johnston.
Last modified27 May 2019.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
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