Asteroid General Data

2021 HB₁

General information

Preliminary designation	2021 HB₁
Group	Apollo
Absolute magnitude	25.10
Approximate diameter (m)	25
Approximate mass (kg)	2.99·10⁷
Number of observations	26
Arc length (days)	11

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	261.167131
a – orbit major semiaxis (astronomical units)	2.11752600
e – orbit eccentricity	0.55715500
ω – orbit ascending node-perihelion angle (degrees)	221.123997
Ω – longitude of orbit ascending node (degrees)	32.009197
i – orbit inclination to the ecliptic plane (degrees)	7.383484

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	101.066802	2.10930036	0.55688355	215.734741	36.145098	7.862899	0.93466570	3.063432
01/21/1858	269.257779	2.10957359	0.55488782	216.154841	35.690361	7.821672	0.93899690	3.064027
01/29/1887	80.505622	2.10955490	0.55886295	216.436576	35.343837	7.786432	0.93060282	3.063987
02/07/1916	247.082338	2.11114858	0.55991196	217.830794	34.540377	7.674962	0.92909124	3.067459
02/14/1945	46.522129	2.11429861	0.55547156	218.620218	33.851878	7.602759	0.93986585	3.074327
02/22/1974	210.630167	2.10929974	0.55830347	218.904726	33.588600	7.582885	0.93167038	3.063431
03/02/2003	20.575280	2.11070726	0.55926746	220.727296	32.457500	7.439301	0.93025737	3.066498
03/09/2032	180.903741	2.11757235	0.55723431	221.200212	31.957832	7.380871	0.93758839	3.081470
03/17/2061	334.922123	2.11236456	0.56168818	221.719912	31.513210	7.343677	0.92587435	3.070110
03/25/2090	133.508518	2.11545004	0.56120758	223.165016	30.557940	7.233361	0.92824345	3.076839
04/03/2119	279.120827	2.12068469	0.56002473	223.662111	29.991826	7.168928	0.93304883	3.088266
04/10/2148	65.467127	2.11545274	0.56356183	224.437481	29.405703	7.117669	0.92326433	3.076845
04/18/2177	217.610519	2.11666215	0.56085089	225.934025	28.369547	7.014620	0.92953030	3.079484

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