Asteroid General Data

2021 UA₁

General information

Preliminary designation	2021 UA₁
Group	Aten
Absolute magnitude	31.79
Approximate diameter (m)	1
Approximate mass (kg)	2.90·10³
Number of observations	22
Arc length (days)	1

Approaches

Date	Object	r, AU	r, km
10/25/2021 03:07:12 AM	Earth	0.000063	9 401

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	173.225627
a – orbit major semiaxis (astronomical units)	1.08561002
e – orbit eccentricity	0.40467326
ω – orbit ascending node-perihelion angle (degrees)	163.230679
Ω – longitude of orbit ascending node (degrees)	125.964654
i – orbit inclination to the ecliptic plane (degrees)	0.006032

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	92.274567	0.98161892	0.37617300	65.360601	213.195506	9.908937	0.61236039	0.972557
01/21/1858	119.974541	0.97535513	0.37509254	64.608734	212.937336	10.218206	0.60950670	0.963263
01/29/1887	150.358718	0.97678788	0.37511277	64.850907	212.692918	10.227616	0.61038227	0.965386
02/07/1916	176.308546	0.98115805	0.37420860	65.815415	212.446679	10.247097	0.61400027	0.971872
02/14/1945	128.083975	0.98130746	0.37418190	65.898885	212.203531	10.273434	0.61411997	0.972094
02/22/1974	74.944974	0.98141547	0.37420116	66.094706	211.967741	10.280617	0.61416866	0.972255
03/02/2003	17.425475	0.98213760	0.37386542	66.420732	211.717387	10.304689	0.61495031	0.973328
03/09/2032	115.359978	1.08592076	0.40469828	157.096478	132.067173	0.006672	0.64645049	1.131613
03/17/2061	350.357676	1.08607532	0.40499036	129.817275	159.338911	0.019156	0.64622528	1.131854
03/25/2090	226.650410	1.08539334	0.40482532	129.304837	159.685044	0.030241	0.64599863	1.130788
04/03/2119	61.301996	1.09125585	0.40484876	138.131000	151.592353	0.034189	0.64946228	1.139962
04/10/2148	223.424267	1.09231929	0.40502338	137.796222	151.729593	0.050512	0.64990444	1.141629
04/18/2177	53.813953	1.08813091	0.40493251	140.383409	149.461622	0.052735	0.64751133	1.135069

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