Asteroid General Data

2011 UL₂₁ (415029)

General information

Preliminary designation	2011 UL₂₁
Number	415029
Group	Apollo
Absolute magnitude	15.93
Approximate diameter (m)	1 700
Approximate mass (kg)	9.50·10¹²
Number of observations	3422
Arc length (days)	12753

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	273.405017
a – orbit major semiaxis (astronomical units)	2.12237200
e – orbit eccentricity	0.65384800
ω – orbit ascending node-perihelion angle (degrees)	284.978487
Ω – longitude of orbit ascending node (degrees)	275.309284
i – orbit inclination to the ecliptic plane (degrees)	34.887484

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	297.472886	2.12051563	0.65827592	282.833862	278.923991	34.448086	0.72463125	3.087897
01/21/1858	79.819564	2.12189690	0.65664732	283.009688	278.507264	34.491135	0.72855898	3.090915
01/29/1887	220.681653	2.12057856	0.65744394	283.360813	277.940342	34.550940	0.72641704	3.088035
02/07/1916	0.267988	2.12304618	0.65559057	283.813344	277.325019	34.636076	0.73119712	3.093426
02/14/1945	136.257872	2.12354619	0.65530992	283.951646	276.926969	34.671296	0.73196530	3.094519
02/22/1974	275.269951	2.12204459	0.65482707	284.476093	276.236776	34.771375	0.73247235	3.091237
03/02/2003	52.394045	2.12350692	0.65255888	284.636370	275.790073	34.824607	0.73779363	3.094433
03/09/2032	190.769127	2.12255803	0.65363133	285.035398	275.254962	34.894168	0.73518760	3.092359
03/17/2061	327.321202	2.12535346	0.65087568	285.437194	274.591515	34.988584	0.74201259	3.098470
03/25/2090	101.832230	2.12308750	0.65128570	285.623625	274.232928	35.043796	0.74035097	3.093517
04/03/2119	240.622420	2.12337620	0.64990785	286.200642	273.456904	35.152137	0.74337734	3.094148
04/10/2148	16.161020	2.12440472	0.64888679	286.305267	273.127742	35.205629	0.74590655	3.096396
04/18/2177	153.217176	2.12281191	0.64907274	286.675959	272.550262	35.263874	0.74495257	3.092914

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