Asteroid General Data

2011 UH₂₁

General information

Preliminary designation	2011 UH₂₁
Group	Amor
Absolute magnitude	23.01
Approximate diameter (m)	66
Approximate mass (kg)	5.37·10⁸
Number of observations	78
Arc length (days)	4116

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	140.789664
a – orbit major semiaxis (astronomical units)	1.95935500
e – orbit eccentricity	0.45427300
ω – orbit ascending node-perihelion angle (degrees)	51.010406
Ω – longitude of orbit ascending node (degrees)	21.197155
i – orbit inclination to the ecliptic plane (degrees)	3.401321

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	149.871997	1.96576920	0.45515166	45.982848	24.624791	3.536322	1.07104610	2.756128
01/21/1858	346.115494	1.96291479	0.45512987	46.764456	24.075352	3.515011	1.06953364	2.750127
01/29/1887	186.888264	1.96038870	0.45524332	47.631828	23.527375	3.490226	1.06793483	2.744820
02/07/1916	33.318963	1.95958842	0.45431906	48.335832	23.038211	3.471031	1.06931005	2.743140
02/14/1945	241.789325	1.95946539	0.45368528	48.916939	22.632342	3.456178	1.07048478	2.742881
02/22/1974	90.033445	1.96019014	0.45369183	49.632898	22.129307	3.437579	1.07086789	2.744403
03/02/2003	293.876810	1.96153910	0.45449610	50.327042	21.637257	3.418010	1.07002722	2.747237
03/09/2032	139.375267	1.95905663	0.45484726	51.060272	21.152406	3.398627	1.06798509	2.742023
03/17/2061	348.217318	1.95895514	0.45417475	51.773828	20.657415	3.381745	1.06924718	2.741810
03/25/2090	196.989927	1.96066607	0.45372714	52.389168	20.205303	3.363614	1.07105867	2.745403
04/03/2119	42.741088	1.96022023	0.45395869	53.145423	19.612292	3.347386	1.07036122	2.744466
04/10/2148	251.013787	1.95846122	0.45439879	53.708671	19.209255	3.332549	1.06853880	2.740773
04/18/2177	101.136475	1.95900746	0.45378188	54.445609	18.689313	3.314834	1.07004537	2.741920

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