Asteroid General Data

2021 UH₄

General information

Preliminary designation	2021 UH₄
Group	Amor
Absolute magnitude	25.48
Approximate diameter (m)	21
Approximate mass (kg)	1.77·10⁷
Number of observations	26
Arc length (days)	9

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	249.783368
a – orbit major semiaxis (astronomical units)	2.04848700
e – orbit eccentricity	0.49915200
ω – orbit ascending node-perihelion angle (degrees)	326.576401
Ω – longitude of orbit ascending node (degrees)	34.211606
i – orbit inclination to the ecliptic plane (degrees)	5.674756

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	113.549375	2.05191958	0.49616661	323.313290	36.495191	5.603549	1.03382559	2.939281
01/21/1858	66.668008	2.05139233	0.49740910	323.982294	36.131212	5.621539	1.03101112	2.938148
01/29/1887	22.115725	2.05009724	0.49993882	324.760178	35.691919	5.646192	1.02517405	2.935366
02/07/1916	342.853185	2.04829636	0.50118107	325.228917	35.317613	5.659475	1.02172901	2.931499
02/14/1945	306.726946	2.04697749	0.50287291	325.650306	34.942585	5.670324	1.01760796	2.928668
02/22/1974	271.968277	2.04753951	0.50193449	325.850736	34.722309	5.666425	1.01980880	2.929875
03/02/2003	238.354789	2.04677697	0.50070950	326.208962	34.401199	5.673399	1.02193629	2.928238
03/09/2032	200.356712	2.05020047	0.49835866	326.731081	34.173392	5.676866	1.02846532	2.935588
03/17/2061	156.597144	2.05072888	0.49702757	327.202691	33.973988	5.680231	1.03146009	2.936723
03/25/2090	107.270029	2.05305435	0.49640482	328.069240	33.653978	5.696335	1.03390828	2.941720
04/03/2119	57.538457	2.05344107	0.49711943	328.688196	33.374145	5.709978	1.03263562	2.942551
04/10/2148	11.323473	2.05084203	0.49853639	329.593277	32.927651	5.739052	1.02842264	2.936966
04/18/2177	329.440334	2.04869712	0.49996042	330.199447	32.513202	5.767995	1.02442964	2.932360

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