Asteroid General Data

2018 SM₃

General information

Preliminary designation	2018 SM₃
Group	Amor
Absolute magnitude	25.30
Approximate diameter (m)	23
Approximate mass (kg)	2.27·10⁷
Number of observations	31
Arc length (days)	17

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	115.109840
a – orbit major semiaxis (astronomical units)	2.26976300
e – orbit eccentricity	0.54243700
ω – orbit ascending node-perihelion angle (degrees)	191.463737
Ω – longitude of orbit ascending node (degrees)	188.323776
i – orbit inclination to the ecliptic plane (degrees)	8.622281

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	189.616337	2.26622858	0.54149404	187.549390	190.245579	8.609402	1.03907930	3.411585
01/21/1858	11.200868	2.26543875	0.54151238	188.078956	189.971576	8.617143	1.03867562	3.409802
01/29/1887	189.822397	2.27131389	0.54095786	188.786024	189.708063	8.619427	1.04262878	3.423074
02/07/1916	4.751043	2.27144874	0.54060749	189.485096	189.380438	8.594752	1.04348654	3.423379
02/14/1945	176.627786	2.27130008	0.54032360	189.958002	189.080389	8.606531	1.04406305	3.423043
02/22/1974	349.591979	2.27026334	0.54146923	190.369144	188.844922	8.614530	1.04098560	3.420700
03/02/2003	160.695152	2.27134969	0.54248927	190.897424	188.562655	8.618577	1.03916685	3.423155
03/09/2032	331.792521	2.27098359	0.54156137	191.441653	188.262925	8.613584	1.04110660	3.422328
03/17/2061	145.415255	2.26985094	0.54236803	191.990478	188.032518	8.620075	1.03875636	3.419768
03/25/2090	316.261403	2.27442901	0.54028528	192.918210	187.650572	8.579741	1.04558849	3.430119
04/03/2119	124.267796	2.27362538	0.53993784	193.395861	187.380117	8.571090	1.04600900	3.428301
04/10/2148	294.581979	2.26953109	0.54147296	193.976903	187.086031	8.590556	1.04064137	3.419045
04/18/2177	109.029581	2.26952546	0.54224531	194.401869	186.846405	8.594446	1.03888593	3.419032

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