Asteroid General Data

2015 ER

General information

Preliminary designation	2015 ER
Group	Apollo
Absolute magnitude	21.13
Approximate diameter (m)	160
Approximate mass (kg)	7.21·10⁹
Number of observations	92
Arc length (days)	2549

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	79.594279
a – orbit major semiaxis (astronomical units)	2.31585500
e – orbit eccentricity	0.81644400
ω – orbit ascending node-perihelion angle (degrees)	305.950626
Ω – longitude of orbit ascending node (degrees)	334.823202
i – orbit inclination to the ecliptic plane (degrees)	11.578030

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	58.640289	2.31413154	0.81741099	278.498191	1.691447	9.690225	0.42253499	3.520324
01/21/1858	140.436513	2.31772150	0.81539966	284.010867	356.224835	9.828491	0.42785218	3.528519
01/29/1887	221.668547	2.31388670	0.81702775	289.324952	351.031202	10.100246	0.42337707	3.519766
02/07/1916	307.591747	2.32031427	0.81402288	291.202121	349.231346	10.184212	0.43152536	3.534442
02/14/1945	35.368905	2.32065628	0.81343462	296.498342	344.048337	10.551192	0.43295412	3.535223
02/22/1974	117.996288	2.31716644	0.81448643	297.819413	342.780786	10.667628	0.42986582	3.527252
03/02/2003	199.780656	2.31960658	0.81328642	302.773160	337.957716	11.141538	0.43310204	3.532825
03/09/2032	283.464904	2.31209900	0.81589884	306.017169	334.726654	11.575262	0.42566011	3.515687
03/17/2061	7.969432	2.31159898	0.81531943	308.605627	332.248349	11.926000	0.42690741	3.514547
03/25/2090	90.548962	2.31562267	0.81304865	311.791838	329.164397	12.385716	0.43290878	3.523727
04/03/2119	170.002729	2.31656334	0.81146405	315.065820	325.962008	12.968146	0.43675546	3.525875
04/10/2148	251.720890	2.31201472	0.81245328	317.645887	323.526345	13.526844	0.43361078	3.515495
04/18/2177	338.167707	2.32088326	0.80842662	318.839983	322.430434	13.726037	0.44461945	3.535742

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