Asteroid General Data

2011 UW₂₅₅

General information

Preliminary designation	2011 UW₂₅₅
Group	Apollo
Absolute magnitude	23.84
Approximate diameter (m)	45
Approximate mass (kg)	1.71·10⁸
Number of observations	60
Arc length (days)	4752

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	100.469964
a – orbit major semiaxis (astronomical units)	1.38043600
e – orbit eccentricity	0.49195800
ω – orbit ascending node-perihelion angle (degrees)	82.954689
Ω – longitude of orbit ascending node (degrees)	217.173424
i – orbit inclination to the ecliptic plane (degrees)	9.711874

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	268.526499	1.38447002	0.49237536	80.118937	219.433411	9.678661	0.70279110	1.629018
01/21/1858	206.558369	1.38373297	0.49226218	80.478420	219.124787	9.681571	0.70257357	1.627718
01/29/1887	144.889491	1.38393041	0.49228594	80.924879	218.759283	9.687778	0.70264094	1.628066
02/07/1916	83.348000	1.38449913	0.49248851	81.263831	218.445998	9.691218	0.70264921	1.629070
02/14/1945	19.166807	1.38401051	0.49244514	81.659165	218.076437	9.693667	0.70246126	1.628207
02/22/1974	317.805256	1.38225436	0.49222732	82.152128	217.766543	9.707378	0.70187100	1.625109
03/02/2003	275.601366	1.38049687	0.49199831	82.656430	217.421591	9.710195	0.70129474	1.622011
03/09/2032	233.929578	1.38093405	0.49207892	83.020146	217.086153	9.718529	0.70140551	1.622781
03/17/2061	191.305218	1.38169004	0.49228023	83.301265	216.774044	9.716022	0.70151135	1.624114
03/25/2090	127.545064	1.38523158	0.49253034	83.481240	216.416873	9.753383	0.70296300	1.630363
04/03/2119	55.033633	1.38561447	0.49255524	83.815209	216.110538	9.751429	0.70312280	1.631039
04/10/2148	345.326292	1.38197803	0.49197434	84.432326	215.738657	9.767993	0.70208030	1.624622
04/18/2177	302.799734	1.38081581	0.49186691	84.899136	215.419872	9.772624	0.70163820	1.622573

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