Asteroid General Data

2021 SB

General information

Preliminary designation	2021 SB
Group	Apollo
Absolute magnitude	26.09
Approximate diameter (m)	16
Approximate mass (kg)	7.62·10⁶
Number of observations	32
Arc length (days)	11

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	354.550590
a – orbit major semiaxis (astronomical units)	1.39390800
e – orbit eccentricity	0.27712800
ω – orbit ascending node-perihelion angle (degrees)	212.825944
Ω – longitude of orbit ascending node (degrees)	175.182993
i – orbit inclination to the ecliptic plane (degrees)	18.439992

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	303.755907	1.39345076	0.27637682	211.065602	176.138826	18.477013	1.00833327	1.644895
01/21/1858	172.891707	1.39393593	0.27665822	211.258494	176.007140	18.473196	1.00829210	1.645754
01/29/1887	43.814263	1.39319424	0.27667691	211.562032	175.867588	18.471472	1.00772957	1.644440
02/07/1916	275.060880	1.39357027	0.27685042	211.800191	175.723587	18.465709	1.00775975	1.645106
02/14/1945	147.861898	1.39419482	0.27717025	212.073177	175.577410	18.458449	1.00776550	1.646212
02/22/1974	15.513033	1.39351563	0.27684664	212.319382	175.436960	18.456539	1.00772552	1.645009
03/02/2003	245.193769	1.39403369	0.27708606	212.546631	175.300730	18.452924	1.00776638	1.645927
03/09/2032	111.826493	1.39399307	0.27720480	212.893101	175.154713	18.443485	1.00757150	1.645855
03/17/2061	339.692464	1.39366667	0.27701423	213.142764	175.023866	18.442182	1.00760117	1.645277
03/25/2090	206.858359	1.39417568	0.27734291	213.341773	174.893194	18.438219	1.00751093	1.646178
04/03/2119	69.856784	1.39486986	0.27787192	213.566447	174.747762	18.430845	1.00727470	1.647408
04/10/2148	288.692553	1.39522676	0.27819665	213.782207	174.610623	18.426607	1.00707936	1.648040
04/18/2177	148.077147	1.39504114	0.27806710	214.000685	174.471409	18.424861	1.00712610	1.647711

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