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Asteroids with Satellites Database--Johnston's Archive
(461852) 2006 GY2
compiled by Wm. Robert Johnston
last updated25 March 2017--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:NEA, Apollo(PHA)
orbital data, primary (osculating elements)[JPL]: | semimajor axisa: | 1.857632792 AU | | orbital periodP: | 2.531908493 yr
(= 924.779577 d) | | eccentricitye: | 0.496099857 | | perihelion distanceq: | 0.936061429 AU | | aphelion distanceQ: | 2.779204155 AU | | inclinationi: | 30.5687754° | | argument of perihelionω: | 216.706955° | | ascending nodeΩ: | 54.3458623° | | mean anomalyM: | 48.335961° | | perihelion passageTP: | 2014 Jan 18.83303 | | Epoch: | 2014 May 23 | | data arc: | 2006-2011(294 obs.) | | Earth MOID: | 0.0081219 AU | | Jupiter Tisserand invariantTJ: | 3.694 |
orbital data, secondary: | semimajor axisas: | 0.5 km (separation) [B06b] | | separation/primary radiusas/rp: | 2.5 [*E] | | separation/Hill radiusas/rH: | 0.017 [*E] | | orbital periodPs: | 0.4875± 0.008d [B06c] | | eccentricityes: | ? | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 18.8[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 0.41 km [*D] | | geometric albedo: | 0.32[*E] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | ? | | massm: | ? | | densityρ: | (1.6 g/cm3) [*A] | | Hill radiusrH: | 29 km [*E] |
other data, primary: | diameterdp: | 0.4 km [B06b] | | rotation periodRPp: | 2.27± 0.01h [H08b] | | amplitude in mag., rotationalΔM: | ? | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | 0.08km [B06b] | | diameter ratiods/dp: | 0.2 [*D] | | component mag. differenceΔM: | 3.5 [* D] | | rotation periodRPs: | ? | |
|
--(461852) 2006 GY2 --discovery and notes:
Primary discovered2006 Apr 09from Lincoln Laboratory ETS, New Mexico, USAby LINEAR.
Companion discovered2006 May 15 by L. A. M. Benner, M. C. Nolan, M. K. Shepard, J. D. Giorgini, S. J. Ostro, M. W. Busch, and A. A. Hineusingradar observations from Arecibo Observatory, Puerto Rico; Goldstone, California, USA.Announced2006 Jun 02 [B06b].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Higley, Steven, Hardersen, Paul, & Dyvig, Ron 2008, Minor Planet BulletinDo What You Can Do Photometry: Unfiltered Photometry of NEOs 2005 PJ2, 2005 WC1, and 2006 GY2
- Brooks, Heidi E. 2006, Bulletin of the American Astronomical SocietyOrbits of Binary Near-Earth Asteroids from Radar Observations
- Benner, L. A. M., Nolan, M. C., Shepard, M. K., Giorgini, J. D., Ostro, S. J., Busch, M. W., & Hine, A. A. 2006, Central Bureau Electronic Telegrams2006 GY2
©2006-2014, 2017by Wm. Robert Johnston.
Last modified25 March 2017.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
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