Asteroid General Data

2018 SM₂

General information

Preliminary designation	2018 SM₂
Group	Apollo
Absolute magnitude	22.96
Approximate diameter (m)	68
Approximate mass (kg)	5.75·10⁸
Number of observations	28
Arc length (days)	25

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	78.376615
a – orbit major semiaxis (astronomical units)	2.32658800
e – orbit eccentricity	0.60617600
ω – orbit ascending node-perihelion angle (degrees)	199.412260
Ω – longitude of orbit ascending node (degrees)	209.665152
i – orbit inclination to the ecliptic plane (degrees)	2.289706

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	221.019885	2.27560098	0.59645053	195.214739	212.209493	2.185169	0.91831758	3.432771
01/21/1858	29.796253	2.27398215	0.59525247	195.912690	211.851060	2.191029	0.92038865	3.429108
01/29/1887	194.507225	2.27562211	0.59506712	196.401560	211.507674	2.205805	0.92147421	3.432818
02/07/1916	359.763089	2.27190911	0.59618482	196.843503	211.281846	2.221819	0.91743138	3.424420
02/14/1945	169.612331	2.26914249	0.59679764	197.373694	211.007005	2.239331	0.91492362	3.418167
02/22/1974	342.935914	2.27139792	0.59680650	198.367373	210.227189	2.237296	0.91581288	3.423264
03/02/2003	154.064720	2.27077626	0.59700101	198.930276	209.963618	2.249217	0.91512053	3.421859
03/09/2032	319.366981	2.27881399	0.59335832	199.770287	209.429365	2.256551	0.92666076	3.440043
03/17/2061	116.709483	2.28032566	0.59410690	200.581165	208.738546	2.253978	0.92556846	3.443467
03/25/2090	271.608909	2.27910673	0.59681339	201.182492	208.497428	2.276745	0.91890531	3.440706
04/03/2119	70.784731	2.27677206	0.59630247	201.842431	208.179035	2.284592	0.91912726	3.435421
04/10/2148	230.384988	2.27692625	0.59564666	202.426282	207.745505	2.288804	0.92068274	3.435770
04/18/2177	29.782773	2.27603831	0.59566740	202.871525	207.466434	2.295768	0.92027649	3.433760

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