Asteroid General Data

2011 UX₂₅₅

General information

Preliminary designation	2011 UX₂₅₅
Group	Apollo
Absolute magnitude	27.36
Approximate diameter (m)	9
Approximate mass (kg)	1.32·10⁶
Number of observations	30
Arc length (days)	2

Approaches

Date	Object	r, AU	r, km
10/28/2011 05:45:36 PM	Earth	0.000926	138 593

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	221.940854
a – orbit major semiaxis (astronomical units)	1.92778622
e – orbit eccentricity	0.78722586
ω – orbit ascending node-perihelion angle (degrees)	71.168025
Ω – longitude of orbit ascending node (degrees)	214.235139
i – orbit inclination to the ecliptic plane (degrees)	7.773595

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	302.011370	1.94789418	0.78828551	58.925034	226.039766	7.955819	0.41239743	2.718621
01/21/1858	181.654499	1.94689762	0.78875835	60.562762	224.497473	7.850371	0.41126587	2.716535
01/29/1887	62.332864	1.94772127	0.78883306	62.541063	222.657664	7.734254	0.41129433	2.718259
02/07/1916	303.053911	1.94846631	0.78871859	64.410467	220.930033	7.635208	0.41167472	2.719819
02/14/1945	185.786627	1.94668406	0.78938921	66.361873	219.087153	7.543479	0.40999266	2.716088
02/22/1974	68.811889	1.94865576	0.78843231	68.008983	217.537006	7.470981	0.41227261	2.720215
03/02/2003	310.466843	1.94923717	0.78889640	70.362661	215.306778	7.375028	0.41149099	2.721433
03/09/2032	238.437303	1.92788876	0.78719584	71.389270	214.011131	7.772938	0.41026275	2.676847
03/17/2061	183.490533	1.92850482	0.78829937	73.101165	212.371485	7.702444	0.40826569	2.678130
03/25/2090	129.821262	1.92683683	0.78828363	75.366795	210.245313	7.642419	0.40794289	2.674657
04/03/2119	77.015190	1.92724175	0.78750948	76.960479	208.729999	7.608900	0.40952060	2.675500
04/10/2148	24.043872	1.92645218	0.78905312	79.088123	206.700511	7.555634	0.40637908	2.673856
04/18/2177	329.956004	1.92700860	0.78885167	81.030680	204.884167	7.525620	0.40688465	2.675014

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