Asteroid General Data

2021 CO

General information

Preliminary designation	2021 CO
Group	Apollo
Absolute magnitude	25.15
Approximate diameter (m)	25
Approximate mass (kg)	2.79·10⁷
Number of observations	101
Arc length (days)	6

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	195.280594
a – orbit major semiaxis (astronomical units)	1.12589300
e – orbit eccentricity	0.36316700
ω – orbit ascending node-perihelion angle (degrees)	272.795399
Ω – longitude of orbit ascending node (degrees)	321.630505
i – orbit inclination to the ecliptic plane (degrees)	4.756901

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	125.281665	1.10886780	0.36006359	273.776348	324.832944	5.164742	0.70960488	1.167670
01/21/1858	81.899582	1.10759936	0.36005537	273.622082	324.315495	5.130480	0.70880226	1.165667
01/29/1887	35.537176	1.10732323	0.36029638	273.252646	323.853279	5.060375	0.70835868	1.165232
02/07/1916	260.045340	1.12003711	0.36182881	272.316796	323.345181	5.019525	0.71477542	1.185357
02/14/1945	93.336972	1.11601070	0.36136347	272.857709	322.878326	5.010146	0.71272520	1.178971
02/22/1974	318.217742	1.11458120	0.36111156	273.354303	322.534272	5.007113	0.71209304	1.176707
03/02/2003	205.665595	1.11328412	0.36078245	273.822594	322.036691	4.998791	0.71163075	1.174653
03/09/2032	46.428595	1.12515448	0.36296411	272.888594	321.517014	4.751424	0.71676379	1.193490
03/17/2061	157.765777	1.12664659	0.36333511	273.213263	321.130216	4.748814	0.71729633	1.195865
03/25/2090	249.811531	1.12657680	0.36328948	273.874709	320.606501	4.705196	0.71730330	1.195754
04/03/2119	348.204964	1.12827933	0.36358461	274.150107	320.105189	4.692991	0.71805433	1.198466
04/10/2148	86.968724	1.12537489	0.36310029	274.783338	319.750475	4.677488	0.71675094	1.193841
04/18/2177	197.383705	1.12515435	0.36304385	275.420585	319.331428	4.661464	0.71667399	1.193490

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