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Asteroids with Satellites Database--Johnston's Archive
(18890) 2000 EV26
compiled by Wm. Robert Johnston
last updated17 January 2015--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, inner
orbital data, primary (osculating elements)[JPL]: | semimajor axisa: | 1.9170260852 AU | | orbital periodP: | 2.654251269 yr
(= 969.4835858 d) | | eccentricitye: | 0.073965409 | | perihelion distanceq: | 1.77523247 AU | | aphelion distanceQ: | 2.0588197042 AU | | inclinationi: | 22.975958° | | argument of perihelionω: | 265.812461° | | ascending nodeΩ: | 184.419159° | | mean anomalyM: | 285.7793° | | perihelion passageTP: | 2015 Jun 26.87708 | | Epoch: | 2014 Dec 09 | | data arc: | 1984-2014(734 obs.) | | Earth MOID: | 0.873107 AU | | Jupiter Tisserand invariantTJ: | 3.829 |
orbital data, secondary: | semimajor axisas: | 6 km[*E] | | separation/primary radiusas/rp: | 3.1 [*E] | | separation/Hill radiusas/rH: | 0.011 [*E] | | orbital periodPs: | 0.5954± 0.0004d [W15c] | | eccentricityes: | ? | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 14.6[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 4 km [*E] | | geometric albedo: | (0.16) [*A] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | ? | | massm: | ? | | densityρ: | (1.6 g/cm3) [*A] | | Hill radiusrH: | 540 km [*E] |
other data, primary: | diameterdp: | 3.86 km [*E] | | rotation periodRPp: | 3.8216± 0.0005h [W15c] | | amplitude in mag., rotationalΔM: | 0.11± 0.01 [W15c] | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | >1.04km [*E] | | diameter ratiods/dp: | >0.27± 0.02 [W15c] | | component mag. differenceΔM: | <2.8 [*D] | | rotation periodRPs: | 14.29± 0.01h [W15c] | |
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--(18890) 2000 EV26 --discovery and notes:
Primary discovered2000 Mar 09from Socorro, New Mexico, USAby LINEAR Program.Alternate designation(s): 1992 FR3, 1993 SS3, 1998 VA6.Linked to prediscovery observations from 1984 Mar 07.Permanent number assigned 2000 Nov 11.
Companion discovered2014 Jul 23 by B. D. Warnerusinglightcurve observations from Palmer Divide Observatory, Colorado Springs, Colorado, USA.Announced2014 Dec [W15c].
--Links, more technical:
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--Links to ADS abstracts:
©2015by Wm. Robert Johnston.
Last modified17 January 2015.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
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