Asteroid General Data

2021 BW

General information

Preliminary designation	2021 BW
Group	Apollo
Absolute magnitude	20.51
Approximate diameter (m)	210
Approximate mass (kg)	1.70·10¹⁰
Number of observations	39
Arc length (days)	35

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	145.299798
a – orbit major semiaxis (astronomical units)	2.59714800
e – orbit eccentricity	0.72022200
ω – orbit ascending node-perihelion angle (degrees)	66.887248
Ω – longitude of orbit ascending node (degrees)	317.615815
i – orbit inclination to the ecliptic plane (degrees)	28.060381

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	44.735263	2.59542495	0.71108387	61.006701	324.919309	29.676915	0.74986012	4.181319
01/21/1858	26.579285	2.59138166	0.71555881	62.138419	323.590222	29.355610	0.73709568	4.171552
01/29/1887	4.058628	2.59777733	0.71352253	62.780133	322.747966	29.135842	0.74420468	4.187005
02/07/1916	341.838804	2.59126388	0.71816836	63.251351	322.053444	29.014393	0.73030016	4.171268
02/14/1945	322.464154	2.59593188	0.71761970	64.586428	320.526981	28.644370	0.73304002	4.182544
02/22/1974	297.806547	2.59511480	0.71851552	64.851947	320.029817	28.553169	0.73048454	4.180570
03/02/2003	279.204520	2.59217247	0.72213436	66.077201	318.607803	28.272978	0.72027565	4.173462
03/09/2032	256.477876	2.59751408	0.72004412	66.890165	317.569257	28.045996	0.72718934	4.186369
03/17/2061	234.391494	2.59326004	0.72377573	67.412601	316.866326	27.946365	0.71632137	4.176089
03/25/2090	215.555503	2.59836736	0.72347676	69.013960	315.017581	27.577171	0.71850896	4.188432
04/03/2119	189.477827	2.59871928	0.72431488	69.268512	314.557255	27.524018	0.71642825	4.189283
04/10/2148	169.278195	2.59585898	0.72784101	70.770445	312.837086	27.215186	0.70648636	4.182368
04/18/2177	144.794214	2.60073409	0.72579291	71.460560	311.897852	27.104872	0.71313974	4.194156

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