Asteroid General Data

2018 HR₁

General information

Preliminary designation	2018 HR₁
Group	Apollo
Absolute magnitude	24.26
Approximate diameter (m)	37
Approximate mass (kg)	9.55·10⁷
Number of observations	40
Arc length (days)	20

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	44.294325
a – orbit major semiaxis (astronomical units)	1.90882000
e – orbit eccentricity	0.60769200
ω – orbit ascending node-perihelion angle (degrees)	140.898562
Ω – longitude of orbit ascending node (degrees)	154.808544
i – orbit inclination to the ecliptic plane (degrees)	2.691074

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	132.789027	1.90971042	0.60643766	134.801289	159.725611	2.568727	0.75159011	2.639076
01/21/1858	127.721893	1.91102580	0.60699475	135.569317	159.116495	2.583397	0.75104318	2.641803
01/29/1887	118.271823	1.91271447	0.60676091	136.287066	158.575794	2.611576	0.75215410	2.645305
02/07/1916	106.301019	1.91321836	0.60739022	137.048385	157.997367	2.634074	0.75114824	2.646351
02/14/1945	93.406023	1.91310921	0.60756151	138.328326	156.983900	2.642101	0.75077768	2.646124
02/22/1974	82.943887	1.91245567	0.60752018	138.928704	156.511505	2.662521	0.75060025	2.644769
03/02/2003	74.682875	1.90978421	0.60796644	139.960429	155.585069	2.670603	0.74869949	2.639229
03/09/2032	71.596032	1.90952446	0.60722113	140.918722	154.775278	2.692232	0.75002086	2.638690
03/17/2061	67.669906	1.91078359	0.60712647	141.495069	154.329055	2.713846	0.75069630	2.641301
03/25/2090	61.077536	1.91301709	0.60668269	142.428907	153.654633	2.747088	0.75242273	2.645933
04/03/2119	49.523790	1.91441809	0.60646205	143.045942	153.207395	2.770515	0.75339617	2.648840
04/10/2148	35.157569	1.91318010	0.60716692	143.505741	152.855586	2.831229	0.75156044	2.646271
04/18/2177	21.499114	1.91412468	0.60747835	144.200787	152.293447	2.857854	0.75133539	2.648232

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