Asteroid General Data

2008 ER₇ (484506)

General information

Preliminary designation	2008 ER₇
Number	484506
Group	Apollo
Absolute magnitude	20.17
Approximate diameter (m)	250
Approximate mass (kg)	2.72·10¹⁰
Number of observations	230
Arc length (days)	6611

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	138.557342
a – orbit major semiaxis (astronomical units)	1.48657000
e – orbit eccentricity	0.62394600
ω – orbit ascending node-perihelion angle (degrees)	81.064606
Ω – longitude of orbit ascending node (degrees)	323.393205
i – orbit inclination to the ecliptic plane (degrees)	2.237091

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	119.513022	1.48702395	0.62427575	76.738152	327.238927	2.355122	0.55871095	1.813333
01/21/1858	121.765126	1.48687058	0.62404207	77.528535	326.527434	2.343600	0.55900079	1.813052
01/29/1887	126.523256	1.48656342	0.62404175	77.216734	326.856882	2.283714	0.55888578	1.812491
02/07/1916	132.047463	1.48649673	0.62400362	78.065723	326.099215	2.273757	0.55891739	1.812369
02/14/1945	137.436949	1.48624840	0.62390638	78.748255	325.474256	2.268318	0.55896854	1.811915
02/22/1974	142.551403	1.48670987	0.62387904	79.656493	324.653571	2.257603	0.55918274	1.812758
03/02/2003	143.476753	1.48713036	0.62398703	80.395975	324.002811	2.247273	0.55918030	1.813528
03/09/2032	145.866608	1.48665293	0.62396961	81.308129	323.185113	2.235640	0.55902668	1.812654
03/17/2061	146.786883	1.48761277	0.62420720	82.018796	322.590140	2.222043	0.55903417	1.814410
03/25/2090	139.814160	1.48855851	0.62456258	82.879193	321.806900	2.214922	0.55886056	1.816141
04/03/2119	136.812953	1.48792863	0.62432174	83.605019	321.099743	2.210487	0.55898243	1.814988
04/10/2148	135.372004	1.48705541	0.62417487	84.366513	320.382275	2.203801	0.55887278	1.813391
04/18/2177	132.171032	1.48867472	0.62436979	85.245213	319.604644	2.192705	0.55919119	1.816353

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