Asteroids with Satellites Database--Johnston's Archive
(461852) 2006 GY2
compiled by Wm. Robert Johnston
last updated
25 March 2017
--Orbital and physical data--
(See this page for definitions of quantities; source codes in brackets, see this 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 axis a: |
1.857632792 AU
| |
orbital period P: |
2.531908493 yr
(= 924.779577 d)
| |
eccentricity e: |
0.496099857
| |
perihelion distance q: |
0.936061429 AU
| |
aphelion distance Q: |
2.779204155 AU
| |
inclination i: |
30.5687754°
| |
argument of perihelion ω: |
216.706955°
| |
ascending node Ω: |
54.3458623°
| |
mean anomaly M: |
48.335961°
| |
perihelion passage TP: |
2014 Jan 18.83303
| |
Epoch: |
2014 May 23
| |
data arc: |
2006-2011
(294 obs.)
| |
Earth MOID: |
0.0081219 AU
| |
Jupiter Tisserand invariant TJ: |
3.694
|
orbital data, secondary:
|
semimajor axis as: |
0.5
km
(separation)
[B06b]
| |
separation/primary radius as/rp: | 2.5 [*E] | |
separation/Hill radius as/rH: | 0.017 [*E] | |
orbital period Ps: |
0.4875
± 0.008
d [B06c]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
18.8
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
0.41
km [*D]
| |
geometric albedo: |
0.32
[*E]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
29 km [*E]
|
other data, primary:
|
diameter dp: |
0.4
km [B06b]
| |
rotation period RPp: |
2.27
± 0.01
h [H08b]
| |
amplitude in mag., rotational ΔM: |
?
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
0.08
km [B06b]
| |
diameter ratio ds/dp: |
0.2
[*D]
| |
component mag. difference ΔM: |
3.5
[* D]
| |
rotation period RPs: |
?
| |
|
|
--
(461852) 2006 GY2
--discovery and notes:
Primary discovered
2006 Apr 09
from
Lincoln Laboratory ETS, New Mexico, USA
by
LINEAR.
Companion discovered
2006 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. Hine
using
radar
observations from Arecibo Observatory, Puerto Rico; Goldstone, California, USA.
Announced
2006 Jun 02 [B06b].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Higley, Steven, Hardersen, Paul, & Dyvig, Ron 2008, Minor Planet Bulletin Do 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 Society Orbits 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 Telegrams 2006 GY2
©
2006-2014, 2017
by Wm. Robert Johnston.
Last modified
25 March 2017.
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