Asteroid General Data

1998 SD₉

General information

Preliminary designation	1998 SD₉
Group	Aten
Absolute magnitude	23.90
Approximate diameter (m)	44
Approximate mass (kg)	1.57·10⁸
Number of observations	146
Arc length (days)	7302

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	15.227922
a – orbit major semiaxis (astronomical units)	0.70249900
e – orbit eccentricity	0.50439700
ω – orbit ascending node-perihelion angle (degrees)	7.704105
Ω – longitude of orbit ascending node (degrees)	165.744171
i – orbit inclination to the ecliptic plane (degrees)	2.987456

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	285.090873	0.70324181	0.50368305	358.933676	174.965222	2.764272	0.34903083	0.589736
01/21/1858	14.426334	0.70269267	0.50392886	0.111106	173.814692	2.842786	0.34858556	0.589045
01/29/1887	86.625452	0.70386759	0.50334150	1.262772	172.481839	2.802246	0.34958182	0.590523
02/07/1916	139.316610	0.70359057	0.50409675	2.820733	170.702638	2.808117	0.34891285	0.590175
02/14/1945	200.988048	0.70360647	0.50391085	3.807225	169.615296	2.848582	0.34905154	0.590195
02/22/1974	289.198232	0.70254622	0.50465584	4.874762	168.573651	2.816389	0.34800217	0.588861
03/02/2003	23.819228	0.70275949	0.50439213	6.340893	167.055089	2.905969	0.34829314	0.589129
03/09/2032	122.219444	0.70279530	0.50407020	7.989829	165.428974	2.970629	0.34853714	0.589174
03/17/2061	214.949319	0.70232371	0.50483311	8.631196	164.604242	3.017770	0.34776745	0.588582
03/25/2090	304.422692	0.70306070	0.50460443	9.806542	163.345002	2.983246	0.34829316	0.589508
04/03/2119	15.142343	0.70323468	0.50434186	10.619861	162.534571	2.972552	0.34856399	0.589727
04/10/2148	99.173217	0.70306211	0.50436676	11.864200	161.286208	2.944584	0.34846095	0.589510
04/18/2177	203.923737	0.70096543	0.50653586	12.226631	160.538493	3.075008	0.34590130	0.586875

Detailed table...

3D animation...

Calculation on the date...

Return to search