Asteroid General Data

2004 EC (164201)

General information

Preliminary designation	2004 EC
Number	164201
Group	Apollo
Absolute magnitude	15.73
Approximate diameter (m)	1 900
Approximate mass (kg)	1.25·10¹³
Number of observations	1126
Arc length (days)	7750

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	7.445310
a – orbit major semiaxis (astronomical units)	1.99703300
e – orbit eccentricity	0.86005000
ω – orbit ascending node-perihelion angle (degrees)	10.342593
Ω – longitude of orbit ascending node (degrees)	28.813420
i – orbit inclination to the ecliptic plane (degrees)	34.575006

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	13.546582	1.99689213	0.85453311	8.547480	29.901851	36.081089	0.29048169	2.821841
01/21/1858	115.571413	1.99786834	0.85470182	8.690228	29.814806	35.936896	0.29028663	2.823910
01/29/1887	210.934781	1.99864592	0.85578242	9.043449	29.593540	35.646474	0.28823988	2.825559
02/07/1916	312.755878	1.99754571	0.85639895	9.242642	29.483001	35.477013	0.28684966	2.823226
02/14/1945	48.143462	1.99946858	0.85652321	9.612117	29.250386	35.086878	0.28687734	2.827304
02/22/1974	149.446285	1.99786067	0.85793396	9.816885	29.125623	34.971970	0.28382816	2.823894
03/02/2003	244.834340	1.99905707	0.85825823	10.194909	28.897078	34.584198	0.28334988	2.826431
03/09/2032	345.913691	1.99829245	0.85961902	10.408705	28.761300	34.445584	0.28052225	2.824810
03/17/2061	81.390920	1.99899888	0.86021441	10.784319	28.522925	34.081387	0.27943124	2.826308
03/25/2090	182.091413	1.99776294	0.86178009	10.978234	28.429678	33.987976	0.27613062	2.823687
04/03/2119	277.658811	1.99918785	0.86204635	11.381552	28.125219	33.535989	0.27579526	2.826708
04/10/2148	18.270138	1.99628637	0.86412423	11.541050	28.032051	33.516808	0.27124694	2.820557
04/18/2177	114.111926	1.99936620	0.86381040	11.989569	27.705020	32.962437	0.27229288	2.827087

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