Asteroid General Data

2001 UD₁₈

General information

Preliminary designation	2001 UD₁₈
Group	Apollo
Absolute magnitude	27.60
Approximate diameter (m)	8
Approximate mass (kg)	9.46·10⁵
Number of observations	12
Arc length (days)	1

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	144.774835
a – orbit major semiaxis (astronomical units)	1.78782600
e – orbit eccentricity	0.43736200
ω – orbit ascending node-perihelion angle (degrees)	183.963000
Ω – longitude of orbit ascending node (degrees)	211.705080
i – orbit inclination to the ecliptic plane (degrees)	2.749350

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	339.538808	1.78797092	0.43750145	180.184085	213.742839	2.687001	1.00573104	2.390789
01/21/1858	28.859071	1.78831648	0.43766992	180.505201	213.539331	2.694746	1.00562416	2.391482
01/29/1887	64.898214	1.79595627	0.43983882	181.222429	213.127737	2.681698	1.00602499	2.406824
02/07/1916	83.413369	1.79670783	0.43934062	181.629848	212.909204	2.688319	1.00734110	2.408334
02/14/1945	106.030209	1.79391711	0.43824227	182.126885	212.605638	2.701389	1.00774680	2.402726
02/22/1974	153.362282	1.78786983	0.43672443	182.882163	212.195517	2.740246	1.00706340	2.390586
03/02/2003	201.642394	1.78893725	0.43737583	183.658403	211.884409	2.741408	1.00649933	2.392728
03/09/2032	249.152383	1.78819250	0.43743191	184.054773	211.674899	2.752053	1.00598004	2.391234
03/17/2061	295.599549	1.79174175	0.43848958	184.577537	211.378941	2.752383	1.00608166	2.398356
03/25/2090	318.245850	1.79674013	0.44016601	185.418690	210.973261	2.728831	1.00587620	2.408399
04/03/2119	335.624462	1.79638496	0.43997177	185.760078	210.765160	2.735678	1.00602629	2.407685
04/10/2148	14.950994	1.78783740	0.43770475	186.515013	210.346786	2.766767	1.00529248	2.390521
04/18/2177	63.615396	1.78903106	0.43729848	186.882129	210.111451	2.771426	1.00669050	2.392916

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