Asteroid General Data

2021 WW

General information

Preliminary designation	2021 WW
Group	Apollo
Absolute magnitude	24.29
Approximate diameter (m)	37
Approximate mass (kg)	9.16·10⁷
Number of observations	26
Arc length (days)	15

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	75.187479
a – orbit major semiaxis (astronomical units)	1.33170300
e – orbit eccentricity	0.27618300
ω – orbit ascending node-perihelion angle (degrees)	138.200146
Ω – longitude of orbit ascending node (degrees)	235.372009
i – orbit inclination to the ecliptic plane (degrees)	23.561090

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	274.214199	1.33384024	0.27932382	137.040189	236.263379	23.474441	0.96126688	1.540481
01/21/1858	216.403733	1.33386003	0.27930059	137.188989	236.141414	23.481980	0.96131214	1.540515
01/29/1887	159.397630	1.33387410	0.27890253	137.367498	235.997586	23.496319	0.96185324	1.540540
02/07/1916	101.436617	1.33375987	0.27858078	137.508410	235.877321	23.504225	0.96220001	1.540342
02/14/1945	46.772336	1.33285986	0.27787400	137.636368	235.742378	23.516619	0.96249277	1.538783
02/22/1974	359.809102	1.33192349	0.27700412	137.803517	235.611765	23.533238	0.96297519	1.537162
03/02/2003	318.872163	1.33163656	0.27650585	137.958002	235.479419	23.541719	0.96343126	1.536665
03/09/2032	278.443082	1.33151479	0.27600131	138.216803	235.349116	23.559859	0.96401496	1.536454
03/17/2061	240.324665	1.33111889	0.27564377	138.351136	235.228104	23.569268	0.96420426	1.535769
03/25/2090	199.835711	1.33128279	0.27553588	138.548031	235.087076	23.580614	0.96446661	1.536053
04/03/2119	161.291530	1.33129684	0.27557003	138.698996	234.965204	23.586423	0.96443134	1.536077
04/10/2148	126.838552	1.33040068	0.27503720	138.854639	234.826998	23.603230	0.96449100	1.534526
04/18/2177	91.042758	1.33092907	0.27506222	139.046740	234.694149	23.610992	0.96484077	1.535440

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