Asteroid General Data

2018 ST₁

General information

Preliminary designation	2018 ST₁
Group	Apollo
Absolute magnitude	25.11
Approximate diameter (m)	25
Approximate mass (kg)	2.95·10⁷
Number of observations	42
Arc length (days)	3

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	26.548724
a – orbit major semiaxis (astronomical units)	2.43898100
e – orbit eccentricity	0.62890700
ω – orbit ascending node-perihelion angle (degrees)	214.487076
Ω – longitude of orbit ascending node (degrees)	188.975207
i – orbit inclination to the ecliptic plane (degrees)	3.679636

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	286.943049	2.45744077	0.62080010	207.172013	193.363696	3.728126	0.93186130	3.852345
01/21/1858	124.306593	2.44857789	0.62955003	207.421238	193.281716	3.761431	0.90707561	3.831524
01/29/1887	335.531918	2.44566748	0.63222546	207.542000	192.996680	3.771447	0.89945422	3.824694
02/07/1916	178.915766	2.45743782	0.62547276	208.033867	192.396910	3.739692	0.92037741	3.852338
02/14/1945	356.531389	2.47140080	0.61551995	209.635534	191.360415	3.675661	0.95020429	3.885218
02/22/1974	154.104848	2.47048531	0.61546918	213.030929	189.645335	3.600988	0.94997774	3.883059
03/02/2003	333.768486	2.45833808	0.62457282	214.155726	189.159144	3.606990	0.92292693	3.854455
03/09/2032	184.851082	2.43648305	0.62986093	214.407719	188.986263	3.684035	0.90183757	3.803170
03/17/2061	46.508477	2.44394990	0.62705209	214.753214	188.494512	3.669917	0.91146600	3.820666
03/25/2090	243.025018	2.46505243	0.61537896	217.152045	186.895465	3.577836	0.94811104	3.870257
04/03/2119	71.009119	2.44944380	0.62156946	219.275181	185.811391	3.548822	0.92694433	3.833556
04/10/2148	286.794114	2.43693645	0.62901595	219.504712	185.681079	3.567514	0.90406456	3.804231
04/18/2177	149.469374	2.44473226	0.62689852	219.823392	185.164196	3.556904	0.91213322	3.822501

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