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Asteroids with Satellites Database--Johnston's Archive
(612176) 2000 QL251
compiled by Wm. Robert Johnston
last updated10 April 2022--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, 1:2 resonance
orbital data, primary (osculating elements)[JPL]: | semimajor axisa: | 47.7375 AU | | orbital periodP: | 329.83 yr
(= 120472.6 d) | | eccentricitye: | 0.217899 | | perihelion distanceq: | 37.3356 AU | | aphelion distanceQ: | 58.1395 AU | | inclinationi: | 3.6849° | | argument of perihelionω: | 98.4661° | | ascending nodeΩ: | 223.2326° | | mean anomalyM: | 38.2013° | | perihelion passageTP: | 1984 Apr 26.1 | | Epoch: | 2019 Apr 27 | | data arc: | 2000-2008(52 obs.) | | Earth MOID: | 36.3243 AU | | Jupiter Tisserand invariantTJ: | 6.009 | | Neptune Tisserand invariantTN: | 3.084 [*D] |
orbital data, secondary: | semimajor axisas: | 4992± 16 km[G19b] | | separation/primary radiusas/rp: | 67 [*D] | | separation/Hill radiusas/rH: | 0.011 [*D] | | orbital periodPs: | 56.4495± 0.0039d [G19b] | | eccentricityes: | 0.4893± 0.004[G19b] | | inclinationis: | 127.69° ± 0.57° [G19b] | | ascending nodeΩs: | 109.24° ± 0.81° [G19b] | | argument of pericenterωs: | 151.66° ± 0.94° [G19b] | | mean anomalyM: | 145.6° ± 1° [G19b] | | Epoch: | 2007 Apr 09.5 | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 6.8[MPC]
7.148 ± 0.016 [G09a] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 206 km [*D] | | geometric albedo: | 0.07± 0.03/0.03[G09a] | | color indexU-B: | ? | | color indexB-V: | 0.87[S12f] | | color indexV-R: | 0.49 ± 0.03 [S12f] | | color indexB-R: | 1.36 ± 0.04 [S12f] | | color indexV-I: | 0.97 [S12f] | | taxonomic type: | ? | | massm: | 3.09x1018 ± 2.9x1016kg [G19b] | | densityρ: | (1± 1/0.5 g/cm3) [*A] | | Hill radiusrH: | 450000 km [*D] |
other data, primary: | diameterdp: | 148± 34 km [G09a] | | color indexV-I: | 0.85 ± 0.09 [B08d] | | rotation periodRPp: | ? | | amplitude in mag., rotationalΔM: | ? | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | 143± 33km [*D] | | diameter ratiods/dp: | 0.967± 0.021 [G09a] | | component mag. differenceΔM: | 0.073± 0.048 [G09a] | | color indexV-I: | 0.98± 0.12 [B08d] | | rotation periodRPs: | ? | |
|
--(612176) 2000 QL251 --discovery and notes:
Primary discovered2000 Aug 25from Cerro Tololo Observatory, La Serena, Chileby M. W. Buie. Permanent number assigned 28 Mar 2022.
Companion discovered2006 Jul 25 by K. S. Noll, D. C. Stephens, W. M. Grundy, and H. F. LevisonusingHubble Space Telescope observations from Hubble Space Telescope.Announced2006 Sep 12 [N06e].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Grundy, W. M., Noll, K. S., Buie, M. W., Benecchi, S. D., Stephens, D. C., & Levison, H. F. 2009, IcarusMutual orbits and masses of six transneptunian binaries
- Noll, K. S., Stephens, D. C., Grundy, W. M., & Levison, H. F. 2006, International Astronomical Union Circular2000 QL_251
- Romanishin, W., Tegler, S. C., & Marsden, B. G. 2001, Minor Planet Electronic Circulars2000 QL251
- Wasserman, L. H., Buie, M. W., Kern, S. D., Millis, R. L., Elliot, J. L., & Marsden, B. G. 2001, Minor Planet Electronic CircularsSeven TNOs
©2006-2019, 2022by Wm. Robert Johnston.
Last modified10 April 2022.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
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