Asteroid General Data

2018 ER₄

General information

Preliminary designation	2018 ER₄
Group	Amor
Absolute magnitude	22.20
Approximate diameter (m)	96
Approximate mass (kg)	1.64·10⁹
Number of observations	57
Arc length (days)	99

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	67.241937
a – orbit major semiaxis (astronomical units)	1.90284300
e – orbit eccentricity	0.46415100
ω – orbit ascending node-perihelion angle (degrees)	220.696513
Ω – longitude of orbit ascending node (degrees)	359.898365
i – orbit inclination to the ecliptic plane (degrees)	2.322424

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	309.522226	1.90174050	0.46438429	215.363169	3.727301	2.465993	1.01860209	2.622572
01/21/1858	333.696421	1.90090945	0.46557747	216.038002	3.279223	2.446497	1.01588884	2.620854
01/29/1887	357.025324	1.90200695	0.46548931	216.577393	2.844003	2.430526	1.01664304	2.623124
02/07/1916	13.936276	1.90451724	0.46564004	217.249715	2.327884	2.412666	1.01769775	2.628318
02/14/1945	26.528302	1.90399242	0.46463590	218.308690	1.643450	2.387938	1.01932918	2.627232
02/22/1974	46.631750	1.90095305	0.46365347	219.221521	1.027187	2.359601	1.01956958	2.620944
03/02/2003	74.149464	1.90076780	0.46368237	219.869274	0.511368	2.341369	1.01941528	2.620561
03/09/2032	98.248715	1.90240901	0.46446004	220.751304	359.857129	2.321280	1.01881605	2.623955
03/17/2061	113.472832	1.90444519	0.46614889	222.419889	358.575095	2.299668	1.01669017	2.628169
03/25/2090	127.860342	1.90358281	0.46615112	223.018407	358.124709	2.284629	1.01622555	2.626384
04/03/2119	146.818571	1.90174037	0.46561480	223.662434	357.637518	2.267323	1.01626190	2.622572
04/10/2148	170.959093	1.90179935	0.46488066	224.509952	357.008284	2.248758	1.01768962	2.622694
04/18/2177	194.498795	1.90174530	0.46563112	225.276424	356.458405	2.231012	1.01623350	2.622582

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