Asteroid General Data

2011 EM₅₁ (414990)

General information

Preliminary designation	2011 EM₅₁
Number	414990
Group	Apollo
Absolute magnitude	21.90
Approximate diameter (m)	110
Approximate mass (kg)	2.49·10⁹
Number of observations	272
Arc length (days)	3503

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	19.626280
a – orbit major semiaxis (astronomical units)	1.32152100
e – orbit eccentricity	0.33532700
ω – orbit ascending node-perihelion angle (degrees)	142.331343
Ω – longitude of orbit ascending node (degrees)	134.137906
i – orbit inclination to the ecliptic plane (degrees)	1.865272

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	9.059061	1.32508332	0.33609525	139.216227	137.040198	1.878842	0.87972911	1.525336
01/21/1858	33.882948	1.32269464	0.33541868	139.528582	136.515550	1.850648	0.87903815	1.521213
01/29/1887	68.863147	1.32182370	0.33513231	140.017091	136.085772	1.851319	0.87883788	1.519711
02/07/1916	103.608727	1.32255926	0.33544454	140.425003	135.744843	1.853019	0.87891398	1.520979
02/14/1945	135.578685	1.32164437	0.33519872	141.029926	135.209605	1.858657	0.87863087	1.519401
02/22/1974	169.811398	1.32130194	0.33512962	141.276903	135.071550	1.863550	0.87849452	1.518811
03/02/2003	200.515400	1.32289383	0.33568500	141.636767	134.767805	1.865491	0.87881821	1.521557
03/09/2032	237.203188	1.32148034	0.33523385	142.343670	134.129720	1.865830	0.87847540	1.519119
03/17/2061	279.196146	1.31965477	0.33485592	143.470368	133.021429	1.866376	0.87776056	1.515972
03/25/2090	322.570500	1.32058292	0.33501672	143.694886	132.913209	1.871247	0.87816556	1.517571
04/03/2119	10.184135	1.32018690	0.33496286	144.455419	131.919659	1.862288	0.87797333	1.516889
04/10/2148	61.090156	1.31909638	0.33450056	144.863226	131.546831	1.869076	0.87785790	1.515010
04/18/2177	121.577207	1.31870733	0.33448774	145.121542	131.223295	1.856896	0.87761590	1.514339

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