Asteroid General Data

2011 UE₂₁

General information

Preliminary designation	2011 UE₂₁
Group	Apollo
Absolute magnitude	20.42
Approximate diameter (m)	220
Approximate mass (kg)	1.92·10¹⁰
Number of observations	33
Arc length (days)	9

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	175.001215
a – orbit major semiaxis (astronomical units)	2.24547900
e – orbit eccentricity	0.73500000
ω – orbit ascending node-perihelion angle (degrees)	256.105639
Ω – longitude of orbit ascending node (degrees)	9.412015
i – orbit inclination to the ecliptic plane (degrees)	44.758772

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	265.493224	2.24583106	0.73053669	255.024869	12.605093	45.312959	0.60516906	3.365629
01/21/1858	129.815696	2.24628392	0.73128980	255.178726	12.126653	45.211054	0.60359940	3.366647
01/29/1887	354.779064	2.24515787	0.73254789	255.305282	11.673696	45.149766	0.60047220	3.364116
02/07/1916	220.167925	2.24497720	0.73293320	255.472525	11.242556	45.078683	0.59955887	3.363710
02/14/1945	85.302447	2.24577183	0.73302953	255.664347	10.700708	44.978512	0.59955476	3.365496
02/22/1974	310.470879	2.24631082	0.73384197	255.859719	10.228494	44.895281	0.59787366	3.366707
03/02/2003	175.899731	2.24479795	0.73453495	255.956331	9.810920	44.827786	0.59591539	3.363307
03/09/2032	40.666769	2.24561678	0.73531909	256.119172	9.351507	44.756622	0.59437189	3.365147
03/17/2061	265.324436	2.24590251	0.73602554	256.355693	8.738322	44.630490	0.59286091	3.365790
03/25/2090	129.922905	2.24583565	0.73710456	256.483643	8.323880	44.573908	0.59041995	3.365639
04/03/2119	355.227109	2.24518325	0.73738918	256.614775	7.893876	44.515304	0.58960941	3.364173
04/10/2148	220.413900	2.24592407	0.73780675	256.804260	7.366821	44.426437	0.58886613	3.365838
04/18/2177	86.115487	2.24551517	0.73820872	256.993973	6.887421	44.355459	0.58785630	3.364919

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