Asteroid General Data

2013 ER₄

General information

Preliminary designation	2013 ER₄
Group	Apollo
Absolute magnitude	24.92
Approximate diameter (m)	28
Approximate mass (kg)	3.84·10⁷
Number of observations	21
Arc length (days)	11

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	303.392326
a – orbit major semiaxis (astronomical units)	1.17124700
e – orbit eccentricity	0.29784700
ω – orbit ascending node-perihelion angle (degrees)	92.175558
Ω – longitude of orbit ascending node (degrees)	336.452107
i – orbit inclination to the ecliptic plane (degrees)	7.428590

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	324.894719	1.17034718	0.29831584	89.795972	338.495413	7.416215	0.82121408	1.266114
01/21/1858	288.724847	1.17171184	0.29830686	90.294567	338.213912	7.445373	0.82218216	1.268329
01/29/1887	249.803926	1.17107872	0.29842730	90.708018	337.872970	7.405469	0.82159686	1.267301
02/07/1916	211.915613	1.17105861	0.29833521	90.885350	337.632025	7.403848	0.82169059	1.267268
02/14/1945	174.229118	1.17181510	0.29819485	91.294038	337.285169	7.433361	0.82238587	1.268496
02/22/1974	134.867803	1.17137802	0.29832903	91.693693	337.000199	7.395031	0.82192195	1.267787
03/02/2003	96.950433	1.17097981	0.29811195	91.829138	336.715757	7.398104	0.82189673	1.267140
03/09/2032	58.355806	1.17169289	0.29816261	92.247455	336.392755	7.427877	0.82233788	1.268298
03/17/2061	22.958886	1.16980005	0.29779866	92.835167	336.110806	7.407956	0.82143517	1.265226
03/25/2090	357.942895	1.17113290	0.29801021	93.310859	335.839219	7.424025	0.82212334	1.267389
04/03/2119	319.884816	1.17104485	0.29795777	93.763883	335.579263	7.421917	0.82212294	1.267246
04/10/2148	285.905827	1.17059767	0.29801538	94.118372	335.307259	7.394396	0.82174156	1.266520
04/18/2177	261.812172	1.16966635	0.29774032	94.673674	335.007704	7.383927	0.82140952	1.265009

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