Asteroid General Data

2021 AO

General information

Preliminary designation	2021 AO
Group	Apollo
Absolute magnitude	22.86
Approximate diameter (m)	71
Approximate mass (kg)	6.61·10⁸
Number of observations	77
Arc length (days)	28

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	117.665633
a – orbit major semiaxis (astronomical units)	2.67257200
e – orbit eccentricity	0.64493200
ω – orbit ascending node-perihelion angle (degrees)	149.959288
Ω – longitude of orbit ascending node (degrees)	260.143996
i – orbit inclination to the ecliptic plane (degrees)	4.164230

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	10.084449	2.67866470	0.64977239	123.722606	283.220498	2.901135	0.93814233	4.384077
01/21/1858	241.570241	2.67625425	0.65083444	128.833126	278.638477	3.050086	0.93445580	4.378160
01/29/1887	114.200060	2.67268424	0.65365389	130.537552	276.950568	3.099260	0.92567380	4.369403
02/07/1916	343.696157	2.67186855	0.64888030	136.871230	271.254140	3.385060	0.93814567	4.367403
02/14/1945	220.883044	2.67231607	0.64755065	140.662413	268.025213	3.561653	0.94185607	4.368500
02/22/1974	90.854860	2.66241401	0.65172766	145.995967	263.474507	3.904210	0.92724515	4.344242
03/02/2003	330.687595	2.66882708	0.64810471	146.425704	263.031030	3.919761	0.93914767	4.359948
03/09/2032	208.705171	2.67597176	0.64345157	149.969540	260.124507	4.163249	0.95411352	4.377467
03/17/2061	79.323629	2.65582307	0.65310349	153.001310	257.677518	4.438690	0.92129576	4.328120
03/25/2090	317.679774	2.66289406	0.65079749	153.824355	256.895002	4.495761	0.92988929	4.345417
04/03/2119	192.053785	2.67818345	0.64280283	156.956473	254.548102	4.766604	0.95663954	4.382895
04/10/2148	68.324367	2.65870196	0.65153039	158.523682	253.361229	4.946524	0.92647683	4.335160
04/18/2177	300.195465	2.66790120	0.64761113	159.379120	252.602652	5.011785	0.94013869	4.357679

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