Asteroid General Data

2021 BK₁

General information

Preliminary designation	2021 BK₁
Group	Apollo
Absolute magnitude	26.35
Approximate diameter (m)	14
Approximate mass (kg)	5.32·10⁶
Number of observations	37
Arc length (days)	3

Approaches

Date	Object	r, AU	r, km
01/20/2021 02:49:55 PM	Moon	0.000879	131 447

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	263.570344
a – orbit major semiaxis (astronomical units)	1.10871318
e – orbit eccentricity	0.72069085
ω – orbit ascending node-perihelion angle (degrees)	309.531770
Ω – longitude of orbit ascending node (degrees)	300.262080
i – orbit inclination to the ecliptic plane (degrees)	25.568638

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	164.043854	1.10480311	0.72374087	308.282684	301.897664	25.131362	0.30521194	1.161256
01/21/1858	161.346428	1.10478746	0.72343612	308.506083	301.656800	25.182354	0.30554431	1.161231
01/29/1887	153.957872	1.10516302	0.72279759	308.688406	301.410709	25.277731	0.30635385	1.161823
02/07/1916	146.707206	1.10495887	0.72243293	308.902714	301.187758	25.332453	0.30670019	1.161502
02/14/1945	143.297592	1.10363814	0.72198437	309.199445	300.930350	25.435418	0.30682865	1.159420
02/22/1974	154.371635	1.10347324	0.72169777	309.416869	300.707808	25.490371	0.30709907	1.159160
03/02/2003	165.393526	1.10363982	0.72133024	309.646300	300.451453	25.551762	0.30755104	1.159422
03/09/2032	151.141527	1.10923621	0.72072149	309.535015	300.228107	25.571883	0.30978584	1.168252
03/17/2061	90.827070	1.10954046	0.72042617	309.749058	299.975581	25.628467	0.31019848	1.168733
03/25/2090	28.895631	1.10955939	0.72007456	309.945846	299.758062	25.679856	0.31059390	1.168763
04/03/2119	329.139277	1.10878720	0.71985249	310.204003	299.522293	25.740001	0.31062398	1.167543
04/10/2148	272.312485	1.10955852	0.71978538	310.424893	299.288947	25.713413	0.31091452	1.168762
04/18/2177	210.913621	1.10957832	0.71940747	310.611589	299.075079	25.764827	0.31133939	1.168793

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