Asteroid General Data

2004 EU₉ (307918)

General information

Preliminary designation	2004 EU₉
Number	307918
Group	Aten
Absolute magnitude	19.02
Approximate diameter (m)	420
Approximate mass (kg)	1.33·10¹¹
Number of observations	558
Arc length (days)	7350

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	213.383093
a – orbit major semiaxis (astronomical units)	0.88044600
e – orbit eccentricity	0.50527600
ω – orbit ascending node-perihelion angle (degrees)	202.425007
Ω – longitude of orbit ascending node (degrees)	161.076237
i – orbit inclination to the ecliptic plane (degrees)	28.586116

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	114.769956	0.88043621	0.50466896	201.893369	161.657034	28.618008	0.43610738	0.826128
01/21/1858	161.060397	0.88042828	0.50477066	201.966665	161.572807	28.614584	0.43601392	0.826117
01/29/1887	207.290434	0.88045881	0.50490303	202.050135	161.489000	28.608645	0.43591249	0.826160
02/07/1916	253.707459	0.88041307	0.50498555	202.127339	161.401548	28.605117	0.43581719	0.826096
02/14/1945	300.154782	0.88044174	0.50510888	202.205869	161.318701	28.599999	0.43572280	0.826136
02/22/1974	346.478904	0.88042236	0.50513469	202.283198	161.229988	28.594669	0.43569049	0.826109
03/02/2003	33.151410	0.88043845	0.50519837	202.363121	161.146684	28.588404	0.43564238	0.826131
03/09/2032	79.493445	0.88043592	0.50525799	202.451134	161.057791	28.582851	0.43558864	0.826128
03/17/2061	126.042436	0.88042331	0.50531079	202.534977	160.973331	28.579317	0.43553591	0.826110
03/25/2090	172.596030	0.88039797	0.50545434	202.617013	160.888595	28.572412	0.43539699	0.826074
04/03/2119	218.956022	0.88044819	0.50551640	202.700108	160.804454	28.568120	0.43536719	0.826145
04/10/2148	265.504358	0.88041783	0.50565861	202.778707	160.718732	28.562297	0.43522697	0.826102
04/18/2177	311.861111	0.88046665	0.50575351	202.862366	160.631553	28.558528	0.43516755	0.826171

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