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Asteroids with Satellites Database--Johnston's Archive
(612242) 2001 QQ322
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, Cubewano
orbital data, primary (osculating elements)[JPL]: | semimajor axisa: | 43.930 AU | | orbital periodP: | 291.171 yr
(= 106350.4 d) | | eccentricitye: | 0.05360 | | perihelion distanceq: | 41.575 AU | | aphelion distanceQ: | 46.284 AU | | inclinationi: | 3.957405° | | argument of perihelionω: | 353.02° | | ascending nodeΩ: | 76.512° | | mean anomalyM: | 296.45° | | perihelion passageTP: | 2065 Oct 16 | | Epoch: | 2014 May 23 | | data arc: | 2001-2007(19 obs.) | | Earth MOID: | 40.5889 AU | | Jupiter Tisserand invariantTJ: | 5.907 | | Neptune Tisserand invariantTN: | 3.09 [*D] |
orbital data, secondary: | semimajor axisas: | 3890± 90 km (separation) [G12b] | | separation/primary radiusas/rp: | 45 [*E] | | separation/Hill radiusas/rH: | 0.0068 [*E] | | orbital periodPs: | 32d [*E] | | eccentricityes: | ? | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 6.4[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 231 km [*E] | | geometric albedo: | (0.09) [*A] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | ? | | massm: | ? | | densityρ: | (1 g/cm3) [*A] | | Hill radiusrH: | 570000 km [*E] |
other data, primary: | diameterdp: | 171 km [*E] | | rotation periodRPp: | ? | | amplitude in mag., rotationalΔM: | ? | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | 156km [*E] | | diameter ratiods/dp: | 0.912 [N08d] | | component mag. differenceΔM: | 0.2 [N08d] | | rotation periodRPs: | ? | |
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--(612242) 2001 QQ322 --discovery and notes:
Primary discovered2001 Aug 21from Cerro Tololo Observatory, La Serena, Chileby M. W. Buie. Permanent number assigned 28 Mar 2022.
Companion discovered2007 Jun 15 by K. S. Noll, W. M. Grundy, S. D. Kern, H. F. Levison, and D. C. StephensusingHubble Space Telescope observations from Hubble Space Telescope.Announced2008 Mar 04 [N08d].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Noll, K. S., Grundy, W. M., Kern, S. D., Levison, H. F., & Stephens, D. C. 2008, International Astronomical Union Circular2001 QQ_322 and 2005 PR_21
©2008-2014, 2022by Wm. Robert Johnston.
Last modified10 April 2022.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
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