Asteroid General Data

1990 UN

General information

Preliminary designation	1990 UN
Group	Apollo
Absolute magnitude	23.53
Approximate diameter (m)	52
Approximate mass (kg)	2.62·10⁸
Number of observations	22
Arc length (days)	15

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	347.909006
a – orbit major semiaxis (astronomical units)	1.71150400
e – orbit eccentricity	0.52832400
ω – orbit ascending node-perihelion angle (degrees)	98.096668
Ω – longitude of orbit ascending node (degrees)	7.529873
i – orbit inclination to the ecliptic plane (degrees)	3.702882

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	272.480110	1.71338156	0.52935611	92.973710	11.836554	3.668163	0.80639256	2.242755
01/21/1858	247.025477	1.71330493	0.52929640	93.798560	11.159130	3.677471	0.80645880	2.242604
01/29/1887	225.206466	1.71236958	0.52885389	94.540130	10.561739	3.664399	0.80677626	2.240768
02/07/1916	206.069615	1.71275655	0.52885108	95.284603	10.003851	3.662906	0.80696340	2.241527
02/14/1945	190.207748	1.71168777	0.52864546	95.853065	9.437001	3.669526	0.80681180	2.239430
02/22/1974	173.806487	1.71072897	0.52885243	96.685253	8.734916	3.686745	0.80600580	2.237548
03/02/2003	161.526218	1.71129875	0.52841322	97.405108	8.107600	3.673100	0.80702587	2.238666
03/09/2032	148.186276	1.71245624	0.52834279	98.179592	7.440785	3.701150	0.80769234	2.240938
03/17/2061	133.043940	1.71163741	0.52835733	98.846078	6.896517	3.699283	0.80728123	2.239331
03/25/2090	119.447886	1.71176175	0.52823258	99.525402	6.342616	3.700027	0.80755343	2.239575
04/03/2119	109.116585	1.71096086	0.52788597	100.372439	5.683565	3.687312	0.80776862	2.238003
04/10/2148	98.616189	1.71035073	0.52766633	100.886881	5.236266	3.686573	0.80785625	2.236806
04/18/2177	85.906359	1.71160205	0.52776802	101.640228	4.664768	3.690792	0.80827323	2.239261

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