Asteroid General Data

2021 UO₄

General information

Preliminary designation	2021 UO₄
Group	Apollo
Absolute magnitude	26.30
Approximate diameter (m)	15
Approximate mass (kg)	5.70·10⁶
Number of observations	34
Arc length (days)	5

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	224.893640
a – orbit major semiaxis (astronomical units)	1.06582000
e – orbit eccentricity	0.10422500
ω – orbit ascending node-perihelion angle (degrees)	280.725847
Ω – longitude of orbit ascending node (degrees)	37.010359
i – orbit inclination to the ecliptic plane (degrees)	14.781504

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	45.990311	1.06635196	0.10593655	280.659850	38.329392	14.760242	0.95338631	1.101163
01/21/1858	175.847121	1.06592530	0.10566327	280.233348	38.147484	14.762629	0.95329614	1.100502
01/29/1887	301.089453	1.06700253	0.10513311	280.747938	37.945522	14.780025	0.95482524	1.102171
02/07/1916	65.367168	1.06642361	0.10545985	280.900044	37.751162	14.765638	0.95395874	1.101274
02/14/1945	195.581827	1.06589941	0.10487957	280.508809	37.564899	14.773037	0.95410834	1.100462
02/22/1974	317.912943	1.06690753	0.10467851	281.115153	37.385079	14.783272	0.95522524	1.102023
03/02/2003	84.341964	1.06632656	0.10498648	281.040769	37.179743	14.768779	0.95437669	1.101123
03/09/2032	216.257288	1.06576592	0.10420459	280.743567	36.990613	14.781481	0.95470823	1.100255
03/17/2061	339.317440	1.06693153	0.10402689	281.310499	36.811298	14.791864	0.95594195	1.102060
03/25/2090	105.616370	1.06634354	0.10427195	281.388967	36.606881	14.777727	0.95515382	1.101150
04/03/2119	237.959149	1.06572069	0.10366429	280.920607	36.417226	14.787747	0.95524351	1.100185
04/10/2148	8.477810	1.06680652	0.10279421	281.472299	36.196085	14.812671	0.95714498	1.101867
04/18/2177	130.428500	1.06630218	0.10306815	281.858577	36.022820	14.802649	0.95640039	1.101086

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