Asteroid General Data

2013 EM₂₀ (517103)

General information

Preliminary designation	2013 EM₂₀
Number	517103
Group	Apollo
Absolute magnitude	19.92
Approximate diameter (m)	280
Approximate mass (kg)	3.84·10¹⁰
Number of observations	870
Arc length (days)	8795

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	226.832529
a – orbit major semiaxis (astronomical units)	1.37132100
e – orbit eccentricity	0.31789100
ω – orbit ascending node-perihelion angle (degrees)	350.162865
Ω – longitude of orbit ascending node (degrees)	73.879608
i – orbit inclination to the ecliptic plane (degrees)	8.363227

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	200.111756	1.37143607	0.31799880	348.508230	75.235061	8.383549	0.93532105	1.606068
01/21/1858	224.618701	1.37122037	0.31791553	348.728018	75.106690	8.383842	0.93528812	1.605689
01/29/1887	253.985601	1.37160526	0.31817452	348.974577	74.820633	8.376840	0.93519542	1.606365
02/07/1916	277.307556	1.37099742	0.31785807	349.239759	74.671450	8.378049	0.93521483	1.605298
02/14/1945	304.404589	1.37172484	0.31808521	349.434074	74.420910	8.365485	0.93539946	1.606575
02/22/1974	327.340882	1.37124215	0.31780508	349.710385	74.273168	8.366282	0.93545443	1.605727
03/02/2003	351.369545	1.37211941	0.31821585	349.959860	74.026213	8.357954	0.93548927	1.607269
03/09/2032	14.488518	1.37114245	0.31796314	350.152293	73.795158	8.355732	0.93516969	1.605552
03/17/2061	37.381095	1.37175291	0.31820271	350.381897	73.655622	8.352929	0.93525741	1.606625
03/25/2090	63.462737	1.37174182	0.31838489	350.598675	73.384654	8.344309	0.93499995	1.606605
04/03/2119	85.357088	1.37129811	0.31802136	350.853230	73.234845	8.344567	0.93519602	1.605826
04/10/2148	110.245311	1.37215079	0.31830012	351.093381	72.989773	8.337114	0.93539503	1.607324
04/18/2177	131.911255	1.37128563	0.31786719	351.357589	72.813241	8.342341	0.93539892	1.605804

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