Asteroid General Data

2011 EN₄₀

General information

Preliminary designation	2011 EN₄₀
Group	Apollo
Absolute magnitude	20.58
Approximate diameter (m)	200
Approximate mass (kg)	1.54·10¹⁰
Number of observations	67
Arc length (days)	1768

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	163.692548
a – orbit major semiaxis (astronomical units)	1.28766300
e – orbit eccentricity	0.73913300
ω – orbit ascending node-perihelion angle (degrees)	164.685823
Ω – longitude of orbit ascending node (degrees)	148.525030
i – orbit inclination to the ecliptic plane (degrees)	13.413672

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	41.473294	1.28728753	0.73924479	163.319648	149.608977	13.203718	0.33566693	1.460542
01/21/1858	354.951036	1.28726927	0.73915083	163.527306	149.449621	13.231424	0.33578313	1.460511
01/29/1887	308.531392	1.28728462	0.73911362	163.751667	149.277627	13.265755	0.33583503	1.460537
02/07/1916	261.663601	1.28722168	0.73914489	163.954597	149.123747	13.293017	0.33577835	1.460430
02/14/1945	215.348573	1.28719445	0.73913685	164.164851	148.959945	13.330967	0.33578160	1.460383
02/22/1974	169.323977	1.28729055	0.73913977	164.324128	148.822291	13.360242	0.33580291	1.460547
03/02/2003	121.731135	1.28746056	0.73921707	164.527459	148.650849	13.390553	0.33574773	1.460836
03/09/2032	72.793339	1.28768888	0.73907051	164.710114	148.505811	13.412934	0.33599600	1.461225
03/17/2061	22.387821	1.28775128	0.73903900	164.902591	148.349430	13.438738	0.33605286	1.461331
03/25/2090	331.304584	1.28778180	0.73896035	165.098708	148.201026	13.471755	0.33616212	1.461383
04/03/2119	280.276061	1.28769379	0.73880079	165.272079	148.062116	13.499604	0.33634460	1.461233
04/10/2148	229.494256	1.28776159	0.73879820	165.472107	147.910979	13.535199	0.33636564	1.461349
04/18/2177	178.297737	1.28777178	0.73880810	165.645295	147.772761	13.566122	0.33635557	1.461366

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