Asteroid General Data

2021 AC

General information

Preliminary designation	2021 AC
Group	Apollo
Absolute magnitude	23.63
Approximate diameter (m)	50
Approximate mass (kg)	2.28·10⁸
Number of observations	136
Arc length (days)	183

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	79.042579
a – orbit major semiaxis (astronomical units)	1.03671200
e – orbit eccentricity	0.07504500
ω – orbit ascending node-perihelion angle (degrees)	251.434200
Ω – longitude of orbit ascending node (degrees)	285.216694
i – orbit inclination to the ecliptic plane (degrees)	26.617980

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	296.035286	1.03537438	0.07363279	251.380309	285.986747	26.633720	0.95913688	1.053530
01/21/1858	123.990349	1.03619082	0.07397908	251.374657	285.870698	26.626885	0.95953438	1.054776
01/29/1887	310.860236	1.03589237	0.07391019	251.636883	285.764714	26.627907	0.95932937	1.054320
02/07/1916	134.912374	1.03622162	0.07373823	251.441870	285.652587	26.627732	0.95981247	1.054823
02/14/1945	319.583771	1.03582990	0.07423269	251.673483	285.537158	26.625322	0.95893746	1.054225
02/22/1974	144.582293	1.03632345	0.07386866	251.970093	285.430802	26.625973	0.95977163	1.054978
03/02/2003	328.419309	1.03654516	0.07452379	251.238843	285.307786	26.622210	0.95929789	1.055317
03/09/2032	146.725958	1.03663079	0.07507199	251.458946	285.201335	26.617426	0.95880886	1.055448
03/17/2061	328.106356	1.03609391	0.07538992	252.031393	285.076701	26.614427	0.95798287	1.054628
03/25/2090	152.583941	1.03637821	0.07520636	252.354762	284.976450	26.613858	0.95843598	1.055062
04/03/2119	335.686650	1.03651752	0.07524608	251.722158	284.852337	26.613676	0.95852364	1.055275
04/10/2148	154.297368	1.03686982	0.07581433	251.430326	284.751818	26.608486	0.95826023	1.055813
04/18/2177	327.782100	1.03709907	0.07591178	250.862343	284.629833	26.607848	0.95837103	1.056163

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