Asteroid General Data

2025 ER

General information

Preliminary designation	2025 ER
Group	Apollo
Absolute magnitude	24.30
Approximate diameter (m)	37
Approximate mass (kg)	9.03·10⁷
Number of observations	23
Arc length (days)	9

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	188.950741
a – orbit major semiaxis (astronomical units)	1.12388200
e – orbit eccentricity	0.25375900
ω – orbit ascending node-perihelion angle (degrees)	127.396871
Ω – longitude of orbit ascending node (degrees)	284.343631
i – orbit inclination to the ecliptic plane (degrees)	4.026269

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	38.875914	1.12022983	0.25245039	123.722470	287.958693	4.239523	0.83742737	1.185663
01/21/1858	203.622641	1.12055843	0.25244491	124.185046	287.265728	4.173886	0.83767916	1.186185
01/29/1887	12.695392	1.12084918	0.25257540	124.701345	286.863655	4.162552	0.83775024	1.186647
02/07/1916	182.363415	1.12047622	0.25254419	124.952132	286.417581	4.142810	0.83750646	1.186054
02/14/1945	347.187533	1.12135364	0.25278944	125.600130	285.930820	4.109020	0.83788728	1.187448
02/22/1974	133.502011	1.12235095	0.25315655	126.459697	285.411100	4.082843	0.83822045	1.189032
03/02/2003	275.638815	1.12390423	0.25375239	127.014980	284.798072	4.040722	0.83871085	1.191501
03/09/2032	43.256554	1.12406616	0.25378831	127.425753	284.262659	4.026072	0.83879131	1.191759
03/17/2061	178.056851	1.12293078	0.25364554	127.838530	283.725401	3.990791	0.83810440	1.189954
03/25/2090	322.694134	1.12253218	0.25363260	128.204892	283.332556	3.983463	0.83782142	1.189320
04/03/2119	94.129334	1.12410128	0.25404749	128.794214	282.821429	3.965454	0.83852618	1.191815
04/10/2148	225.293021	1.12336291	0.25383587	129.098466	282.477604	3.961560	0.83821312	1.190641
04/18/2177	8.772351	1.12248321	0.25359639	129.280157	282.060213	3.948445	0.83782552	1.189242

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