Asteroid General Data

2021 HR₁

General information

Preliminary designation	2021 HR₁
Group	Apollo
Absolute magnitude	21.65
Approximate diameter (m)	120
Approximate mass (kg)	3.51·10⁹
Number of observations	81
Arc length (days)	42

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	183.620132
a – orbit major semiaxis (astronomical units)	2.29360900
e – orbit eccentricity	0.58221400
ω – orbit ascending node-perihelion angle (degrees)	171.923136
Ω – longitude of orbit ascending node (degrees)	110.902729
i – orbit inclination to the ecliptic plane (degrees)	11.583484

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	171.987478	2.28779387	0.58415881	167.727493	113.000862	11.264504	0.95135893	3.460397
01/21/1858	307.845887	2.28860947	0.58353227	168.407078	112.714359	11.321523	0.95313200	3.462248
01/29/1887	81.365009	2.29036240	0.58141118	168.866985	112.394357	11.341841	0.95872010	3.466226
02/07/1916	219.177723	2.28840263	0.58435159	169.515600	112.067408	11.422151	0.95117090	3.461778
02/14/1945	352.732397	2.29294922	0.58014211	170.294018	111.743281	11.441770	0.96271282	3.472100
02/22/1974	126.029856	2.29082102	0.58257966	170.643792	111.470984	11.487920	0.95623528	3.467268
03/02/2003	260.811220	2.29446209	0.58160291	171.655516	111.095757	11.565240	0.95999625	3.475537
03/09/2032	30.903439	2.29320749	0.58123054	171.962827	110.847974	11.567437	0.96032527	3.472687
03/17/2061	164.040165	2.29466098	0.58355237	172.686506	110.460132	11.666810	0.95560612	3.475989
03/25/2090	296.495097	2.29303796	0.58140455	173.323973	110.222959	11.667968	0.95985526	3.472302
04/03/2119	67.899745	2.29457705	0.58135815	173.606810	109.998986	11.681893	0.96060597	3.475798
04/10/2148	200.553264	2.29184334	0.58315345	174.607283	109.604049	11.760247	0.95534698	3.469589
04/18/2177	331.048321	2.29562199	0.58091733	174.894162	109.426220	11.744007	0.96205540	3.478173

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