Asteroid General Data

2021 CY

General information

Preliminary designation	2021 CY
Group	Apollo
Absolute magnitude	27.70
Approximate diameter (m)	8
Approximate mass (kg)	8.24·10⁵
Number of observations	19
Arc length (days)	3

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	87.145206
a – orbit major semiaxis (astronomical units)	2.76309400
e – orbit eccentricity	0.68833400
ω – orbit ascending node-perihelion angle (degrees)	312.476240
Ω – longitude of orbit ascending node (degrees)	133.512203
i – orbit inclination to the ecliptic plane (degrees)	1.975494

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	130.510861	2.79037637	0.68627005	232.753781	206.996399	1.654890	0.87542464	4.661168
01/21/1858	198.963293	2.75722984	0.69051354	263.792556	178.138196	1.445680	0.85332531	4.578361
01/29/1887	324.232891	2.74688746	0.69314030	264.634464	177.365117	1.452114	0.84290906	4.552625
02/07/1916	73.575212	2.76626205	0.68115437	287.104110	156.265541	1.526597	0.88201056	4.600877
02/14/1945	192.347666	2.74340655	0.68939364	288.967811	154.689139	1.552131	0.85211953	4.543974
02/22/1974	314.153796	2.79384712	0.67080388	300.464456	144.019946	1.679502	0.91972363	4.669868
03/02/2003	38.605922	2.75638923	0.68217999	311.688477	134.020272	1.954831	0.87603565	4.576268
03/09/2032	155.541987	2.77350630	0.68522043	313.034049	133.150054	1.980510	0.87304312	4.618962
03/17/2061	241.973340	2.81726523	0.66913054	317.558333	129.105476	2.098248	0.93214703	4.728705
03/25/2090	269.041063	2.86230649	0.65091655	323.649221	123.825488	2.292038	0.99918383	4.842558
04/03/2119	254.894403	2.87289822	0.64773394	324.686372	122.980445	2.317972	1.01202455	4.869462
04/10/2148	245.302791	2.84919218	0.65716250	326.225898	121.974121	2.387455	0.97680994	4.809315
04/18/2177	280.040957	2.80138370	0.67282854	331.384546	118.003607	2.713379	0.91653280	4.688776

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