Asteroid General Data

2018 SY₂

General information

Preliminary designation	2018 SY₂
Group	Aten
Absolute magnitude	20.85
Approximate diameter (m)	180
Approximate mass (kg)	1.06·10¹⁰
Number of observations	35
Arc length (days)	681

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	99.943591
a – orbit major semiaxis (astronomical units)	0.77358300
e – orbit eccentricity	0.38391000
ω – orbit ascending node-perihelion angle (degrees)	246.103567
Ω – longitude of orbit ascending node (degrees)	277.478549
i – orbit inclination to the ecliptic plane (degrees)	26.766300

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	261.593159	0.77364467	0.38396252	245.702820	278.344251	26.818246	0.47659411	0.680476
01/21/1858	138.752088	0.77345264	0.38405410	245.739837	278.216390	26.814789	0.47640498	0.680223
01/29/1887	14.790857	0.77359244	0.38414687	245.830097	278.094915	26.810618	0.47641932	0.680407
02/07/1916	251.898013	0.77342445	0.38417997	245.860076	277.979105	26.808715	0.47629027	0.680186
02/14/1945	127.884379	0.77363541	0.38421741	245.947927	277.858383	26.803744	0.47639122	0.680464
02/22/1974	5.420450	0.77346538	0.38429512	245.972181	277.734643	26.801028	0.47622641	0.680240
03/02/2003	241.563476	0.77356057	0.38434631	246.067928	277.610571	26.798938	0.47624541	0.680365
03/09/2032	118.867482	0.77340862	0.38433571	246.092202	277.494492	26.797017	0.47616007	0.680165
03/17/2061	355.349018	0.77364191	0.38432336	246.197327	277.368055	26.791340	0.47631326	0.680473
03/25/2090	232.600912	0.77344966	0.38441235	246.225027	277.244148	26.787484	0.47612606	0.680219
04/03/2119	109.615788	0.77357615	0.38445170	246.331255	277.116872	26.785816	0.47617348	0.680386
04/10/2148	346.219821	0.77345239	0.38452005	246.357706	277.004790	26.781459	0.47604444	0.680222
04/18/2177	223.417315	0.77366063	0.38449092	246.462080	276.878208	26.778315	0.47619515	0.680497

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