Asteroid General Data

2009 DG₉

General information

Preliminary designation	2009 DG₉
Group	Amor
Absolute magnitude	20.92
Approximate diameter (m)	170
Approximate mass (kg)	9.64·10⁹
Number of observations	56
Arc length (days)	1828

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	156.965312
a – orbit major semiaxis (astronomical units)	2.94309500
e – orbit eccentricity	0.58672400
ω – orbit ascending node-perihelion angle (degrees)	39.531376
Ω – longitude of orbit ascending node (degrees)	139.963439
i – orbit inclination to the ecliptic plane (degrees)	20.960863

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	206.476020	2.94540428	0.57285328	33.056501	145.339907	22.514246	1.25811978	5.054963
01/21/1858	109.225041	2.93899988	0.57641024	33.928822	144.569798	22.317701	1.24493024	5.038485
01/29/1887	10.596080	2.94501144	0.57706603	34.993395	143.841885	22.064051	1.24554539	5.053952
02/07/1916	264.905760	2.96245339	0.57401004	35.935547	143.069825	21.720667	1.26197540	5.098917
02/14/1945	154.030520	2.98237984	0.56882442	36.783928	142.491487	21.467453	1.28592937	5.150448
02/22/1974	40.795790	2.96187129	0.57605233	37.281294	141.976841	21.424069	1.25567844	5.097414
03/02/2003	290.173271	2.94924713	0.58223204	38.361049	140.983327	21.199187	1.23210097	5.064859
03/09/2032	187.706928	2.94053101	0.58667151	39.610521	139.917306	20.951015	1.21540524	5.042423
03/17/2061	90.886426	2.94256048	0.58839117	40.582706	139.051300	20.722709	1.21118389	5.047644
03/25/2090	354.075545	2.96692177	0.58190035	41.552264	138.341036	20.401993	1.24046894	5.110457
04/03/2119	251.644067	2.97566848	0.58139839	42.739163	137.443937	20.070119	1.24561963	5.133073
04/10/2148	137.012970	2.96015508	0.58747006	43.198772	136.886460	20.043987	1.22115260	5.092984
04/18/2177	20.330403	2.95903074	0.58977899	44.572004	135.673410	19.771664	1.21385657	5.090083

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