Asteroid General Data

2021 UB₄

General information

Preliminary designation	2021 UB₄
Group	Amor
Absolute magnitude	24.90
Approximate diameter (m)	28
Approximate mass (kg)	3.94·10⁷
Number of observations	46
Arc length (days)	31

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	84.683451
a – orbit major semiaxis (astronomical units)	2.47887000
e – orbit eccentricity	0.55677900
ω – orbit ascending node-perihelion angle (degrees)	33.068005
Ω – longitude of orbit ascending node (degrees)	23.761108
i – orbit inclination to the ecliptic plane (degrees)	1.972479

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	297.705998	2.51746445	0.52777014	30.502017	26.522778	2.099505	1.18882188	3.994346
01/21/1858	39.294990	2.50706578	0.53574252	30.926533	26.143255	2.080324	1.16392404	3.969622
01/29/1887	158.333341	2.49740288	0.54478395	31.682844	25.619605	2.049132	1.13685788	3.946695
02/07/1916	298.443438	2.48157389	0.55443097	32.487901	25.010103	2.022894	1.10571247	3.909232
02/14/1945	95.186742	2.47662233	0.55953732	32.748033	24.697618	2.008252	1.09085971	3.897537
02/22/1974	262.693841	2.47137022	0.56248065	32.743720	24.451088	1.998752	1.08127228	3.885146
03/02/2003	70.036160	2.47349046	0.56093689	32.808522	24.168999	1.988206	1.08601841	3.890147
03/09/2032	229.381109	2.48373287	0.55452152	33.178352	23.650306	1.964509	1.10644955	3.914335
03/17/2061	10.156308	2.49401777	0.54650727	34.106461	22.739441	1.932859	1.13101894	3.938673
03/25/2090	130.608939	2.50732468	0.53715065	35.140455	21.826200	1.893921	1.16051360	3.970237
04/03/2119	230.486428	2.52082159	0.52704072	36.148985	20.767849	1.859892	1.19224596	4.002338
04/10/2148	316.361111	2.52618910	0.52254202	36.340391	20.314042	1.846474	1.20614914	4.015128
04/18/2177	35.516215	2.52913501	0.52037919	36.244464	20.035861	1.837403	1.21302577	4.022153

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