Asteroid General Data

2021 WC

General information

Preliminary designation	2021 WC
Group	Apollo
Absolute magnitude	24.11
Approximate diameter (m)	40
Approximate mass (kg)	1.17·10⁸
Number of observations	76
Arc length (days)	48

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	76.121520
a – orbit major semiaxis (astronomical units)	1.68282800
e – orbit eccentricity	0.39907300
ω – orbit ascending node-perihelion angle (degrees)	346.278519
Ω – longitude of orbit ascending node (degrees)	69.853804
i – orbit inclination to the ecliptic plane (degrees)	8.910112

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	296.766585	1.68253687	0.39985898	343.787848	71.097562	8.851648	1.00975940	2.182466
01/21/1858	38.653580	1.68473001	0.40035621	344.127971	70.917935	8.851131	1.01023789	2.186735
01/29/1887	133.984425	1.68692217	0.40071274	344.565952	70.727393	8.858879	1.01095097	2.191004
02/07/1916	224.443239	1.68613996	0.40062226	344.853598	70.582242	8.861249	1.01063476	2.189480
02/14/1945	318.384199	1.68471417	0.39983390	345.216905	70.389484	8.879011	1.01110834	2.186704
02/22/1974	57.504762	1.68337226	0.39918591	345.618181	70.179712	8.890785	1.01139377	2.184092
03/02/2003	158.075086	1.68414586	0.39966058	345.913140	70.028095	8.891372	1.01105915	2.185597
03/09/2032	258.982810	1.68329090	0.39898236	346.333587	69.824067	8.910783	1.01168753	2.183933
03/17/2061	0.763726	1.68416923	0.39953208	346.673469	69.658007	8.909967	1.01128959	2.185643
03/25/2090	102.422185	1.68251466	0.39922411	346.985003	69.469991	8.922618	1.01081424	2.182423
04/03/2119	206.593329	1.68364238	0.39909766	347.453092	69.273296	8.931713	1.01170464	2.184617
04/10/2148	308.264935	1.68345102	0.39937825	347.723277	69.120867	8.933484	1.01111729	2.184245
04/18/2177	53.314364	1.68210694	0.39841446	348.078239	68.932191	8.941343	1.01193121	2.181630

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