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Asteroids with Satellites Database--Johnston's Archive
2015 QL14
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:TNO, Cubewano
orbital data, primary (osculating elements)[JPL]: | semimajor axisa: | 43.698 AU | | orbital periodP: | 288.87 yr
(= 105508 d) | | eccentricitye: | 0.1146 | | perihelion distanceq: | 38.69 AU | | aphelion distanceQ: | 48.705 AU | | inclinationi: | 12.19921° | | argument of perihelionω: | 352.38° | | ascending nodeΩ: | 26.303° | | mean anomalyM: | 303.14° | | perihelion passageTP: | 2063 Nov 07 | | Epoch: | 2018 Mar 23 | | data arc: | 2015-2017(16 obs.) | | Earth MOID: | 37.6922 AU | | Jupiter Tisserand invariantTJ: | 5.747 | | Neptune Tisserand invariantTN: | 3.029 [*D] |
orbital data, secondary: | semimajor axisas: | 52000 km (separation) [S18c] | | separation/primary radiusas/rp: | 800 [*E] | | separation/Hill radiusas/rH: | 0.11 [*E] | | orbital periodPs: | 2400d [*E] | | eccentricityes: | ? | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 7[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 175 km [*E] | | geometric albedo: | (0.09) [*A] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | ? | | massm: | ? | | densityρ: | (1 g/cm3) [*A] | | Hill radiusrH: | 450000 km [*E] |
other data, primary: | diameterdp: | 130 km [*E] | | rotation periodRPp: | ? | | amplitude in mag., rotationalΔM: | ? | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | 117km [*E] | | diameter ratiods/dp: | 0.9 [*D] | | component mag. differenceΔM: | 0.2 [S18c] | | rotation periodRPs: | ? | |
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-- 2015 QL14 --discovery and notes:
Primary discovered2015 Aug 16from Cerro Tololo Observatory, La Serena, Chileby S. S. Sheppard.
Companion discovered2017 Nov 22 by S. S. Sheppard and C. A. Trujillousingadaptive optics telescope observations from Magellan Telescope.Announced2018 Mar 07 [S18c].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©2018, 2019by Wm. Robert Johnston.
Last modified29 May 2019.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
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