Asteroid General Data

2021 UB₁₂

General information

Preliminary designation	2021 UB₁₂
Group	Amor
Absolute magnitude	20.03
Approximate diameter (m)	260
Approximate mass (kg)	3.30·10¹⁰
Number of observations	84
Arc length (days)	2184

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	253.485230
a – orbit major semiaxis (astronomical units)	2.12790200
e – orbit eccentricity	0.42568200
ω – orbit ascending node-perihelion angle (degrees)	255.063873
Ω – longitude of orbit ascending node (degrees)	60.010227
i – orbit inclination to the ecliptic plane (degrees)	6.101397

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	21.046878	2.12795688	0.42431657	250.031775	63.427446	6.205099	1.22502951	3.104165
01/21/1858	145.826863	2.12766432	0.42502458	251.036766	62.844605	6.184877	1.22335469	3.103525
01/29/1887	269.463459	2.12878610	0.42407034	251.492348	62.420635	6.175244	1.22603106	3.105980
02/07/1916	33.746393	2.12808933	0.42574703	252.422983	61.895844	6.155769	1.22206162	3.104455
02/14/1945	157.405467	2.12836251	0.42443733	253.019818	61.422216	6.145535	1.22500601	3.105053
02/22/1974	281.483197	2.12789960	0.42598634	253.715318	60.950658	6.129357	1.22144343	3.104040
03/02/2003	45.255450	2.12830647	0.42499280	254.502003	60.398157	6.117730	1.22379154	3.104930
03/09/2032	168.542501	2.12855430	0.42567193	255.015661	59.981745	6.105131	1.22248849	3.105473
03/17/2061	292.178048	2.12822209	0.42553814	255.994319	59.379575	6.090707	1.22258242	3.104746
03/25/2090	55.689053	2.12865027	0.42494863	256.458888	58.967857	6.082546	1.22408325	3.105683
04/03/2119	180.081446	2.12740607	0.42614730	257.465057	58.363849	6.067138	1.22081771	3.102960
04/10/2148	303.575190	2.12923817	0.42453109	257.998661	57.892986	6.060038	1.22531036	3.106969
04/18/2177	67.758370	2.12747995	0.42670924	258.853936	57.373450	6.044460	1.21966460	3.103122

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