Asteroid General Data

2018 HM

General information

Preliminary designation	2018 HM
Group	Apollo
Absolute magnitude	27.35
Approximate diameter (m)	9
Approximate mass (kg)	1.34·10⁶
Number of observations	29
Arc length (days)	2

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	95.774484
a – orbit major semiaxis (astronomical units)	1.02929500
e – orbit eccentricity	0.07968100
ω – orbit ascending node-perihelion angle (degrees)	278.402145
Ω – longitude of orbit ascending node (degrees)	205.564926
i – orbit inclination to the ecliptic plane (degrees)	17.574300

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	276.441444	1.03373321	0.08528946	279.622750	206.785997	17.483901	0.94556666	1.051026
01/21/1858	136.860046	1.03377905	0.08540377	280.137542	206.638585	17.484334	0.94549042	1.051096
01/29/1887	356.350476	1.03354893	0.08553288	279.797364	206.459083	17.486462	0.94514651	1.050745
02/07/1916	215.077503	1.03250613	0.08328841	279.529861	206.263507	17.517878	0.94651033	1.049155
02/14/1945	92.229634	1.03270164	0.08353817	279.270425	206.111301	17.517206	0.94643164	1.049453
02/22/1974	336.441031	1.03008584	0.08244318	278.217317	205.888357	17.536204	0.94516229	1.045468
03/02/2003	256.459176	1.02890367	0.08206522	277.500711	205.725972	17.545413	0.94446647	1.043669
03/09/2032	183.466237	1.02931255	0.07965871	278.428187	205.549150	17.574466	0.94731884	1.044291
03/17/2061	110.852306	1.02909419	0.08000365	278.980553	205.391044	17.572231	0.94676290	1.043959
03/25/2090	39.818243	1.02835715	0.08023311	278.016835	205.169228	17.576087	0.94584886	1.042837
04/03/2119	335.462151	1.02884032	0.08048280	277.799032	205.003231	17.574551	0.94603637	1.043572
04/10/2148	266.763740	1.02899528	0.08074395	277.472755	204.845279	17.575102	0.94591014	1.043808
04/18/2177	199.288550	1.02861454	0.08063658	276.996584	204.681752	17.579701	0.94567058	1.043229

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