Asteroid General Data

2021 CH

General information

Preliminary designation	2021 CH
Group	Apollo
Absolute magnitude	27.43
Approximate diameter (m)	9
Approximate mass (kg)	1.20·10⁶
Number of observations	32
Arc length (days)	9

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	210.317233
a – orbit major semiaxis (astronomical units)	1.66080300
e – orbit eccentricity	0.41731600
ω – orbit ascending node-perihelion angle (degrees)	212.468092
Ω – longitude of orbit ascending node (degrees)	318.423414
i – orbit inclination to the ecliptic plane (degrees)	4.978483

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	230.335542	1.65867441	0.41606162	208.485905	321.231701	5.263276	0.96856364	2.136202
01/21/1858	75.609672	1.66168155	0.41697073	209.056496	320.755014	5.217809	0.96880898	2.142014
01/29/1887	259.550354	1.66616342	0.41855341	209.565155	320.307542	5.130107	0.96878504	2.150686
02/07/1916	75.777508	1.66835226	0.42000328	209.999226	319.888166	5.068513	0.96763884	2.154925
02/14/1945	242.201170	1.66913957	0.41969425	210.583204	319.437940	5.044942	0.96861128	2.156451
02/22/1974	47.542367	1.66934913	0.41975907	211.018208	319.142897	5.032382	0.96862469	2.156857
03/02/2003	224.782791	1.66617314	0.41890495	211.847806	318.719525	5.007083	0.96820497	2.150705
03/09/2032	51.349151	1.66088960	0.41708836	212.518871	318.391445	4.976985	0.96815188	2.140483
03/17/2061	256.276186	1.65976212	0.41687125	213.005989	318.067375	4.963090	0.96785501	2.138304
03/25/2090	99.328192	1.66107258	0.41723996	213.552893	317.675344	4.946212	0.96800672	2.140837
04/03/2119	295.006044	1.66321613	0.41786613	214.261798	317.028780	4.911281	0.96821444	2.144982
04/10/2148	123.808232	1.66401837	0.41836621	214.825949	316.621645	4.895190	0.96784931	2.146534
04/18/2177	310.479402	1.66365535	0.41832700	215.355926	316.302047	4.878517	0.96770340	2.145832

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