Asteroid General Data

2021 SD₂

General information

Preliminary designation	2021 SD₂
Group	Apollo
Absolute magnitude	26.85
Approximate diameter (m)	11
Approximate mass (kg)	2.67·10⁶
Number of observations	26
Arc length (days)	8

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	302.464985
a – orbit major semiaxis (astronomical units)	1.15755200
e – orbit eccentricity	0.25958200
ω – orbit ascending node-perihelion angle (degrees)	92.479933
Ω – longitude of orbit ascending node (degrees)	353.820384
i – orbit inclination to the ecliptic plane (degrees)	2.216291

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	329.596599	1.15479602	0.25901111	86.153800	0.379417	2.301637	0.85569103	1.240962
01/21/1858	99.887607	1.15669841	0.25912606	87.779071	359.117747	2.366588	0.85696771	1.244030
01/29/1887	221.855956	1.15564009	0.25907504	88.205534	358.740508	2.352446	0.85624258	1.242323
02/07/1916	344.352895	1.15572336	0.25865970	89.157468	357.612309	2.356935	0.85678430	1.242457
02/14/1945	109.255245	1.15769491	0.25944445	89.817002	357.335712	2.359661	0.85733739	1.245638
02/22/1974	221.124385	1.15667558	0.25920550	90.739857	356.030415	2.256461	0.85685891	1.243993
03/02/2003	333.430364	1.15882082	0.25997755	91.739222	355.382334	2.258431	0.85755342	1.247455
03/09/2032	85.985647	1.15711462	0.25971501	92.686109	353.740096	2.213852	0.85659459	1.244701
03/17/2061	199.005792	1.15760167	0.25971829	92.926835	353.584008	2.211763	0.85695134	1.245487
03/25/2090	308.584453	1.15576777	0.25908103	94.585138	351.788636	2.302017	0.85633027	1.242529
04/03/2119	74.688073	1.15728151	0.25938099	95.109762	351.463505	2.313300	0.85710468	1.244971
04/10/2148	183.476574	1.15730076	0.25940191	95.711750	350.595214	2.264769	0.85709474	1.245002
04/18/2177	296.309829	1.15772267	0.25950345	96.596689	349.943688	2.268471	0.85728964	1.245683

Detailed table...

3D animation...

Calculation on the date...

Return to search