Asteroid General Data

2021 SL

General information

Preliminary designation	2021 SL
Group	Apollo
Absolute magnitude	25.59
Approximate diameter (m)	20
Approximate mass (kg)	1.52·10⁷
Number of observations	14
Arc length (days)	2

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	21.599359
a – orbit major semiaxis (astronomical units)	1.41426700
e – orbit eccentricity	0.36248800
ω – orbit ascending node-perihelion angle (degrees)	297.700394
Ω – longitude of orbit ascending node (degrees)	354.646634
i – orbit inclination to the ecliptic plane (degrees)	16.942533

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	204.335664	1.41383053	0.36342338	295.783073	356.047302	16.862184	0.90001146	1.681112
01/21/1858	298.713567	1.41438219	0.36334594	296.085274	355.847257	16.874844	0.90047216	1.682096
01/29/1887	30.208398	1.41485783	0.36320455	296.444228	355.626723	16.888035	0.90097504	1.682945
02/07/1916	117.576836	1.41433503	0.36304934	296.665248	355.432264	16.896043	0.90086163	1.682012
02/14/1945	206.389079	1.41452630	0.36296158	296.952067	355.228429	16.903274	0.90110760	1.682353
02/22/1974	295.821275	1.41467885	0.36271815	297.227415	355.033271	16.922638	0.90154916	1.682625
03/02/2003	24.567648	1.41500756	0.36284869	297.526109	354.816626	16.929675	0.90157392	1.683212
03/09/2032	113.512514	1.41445748	0.36237869	297.718374	354.625220	16.941212	0.90188824	1.682230
03/17/2061	205.234174	1.41356518	0.36187948	297.970806	354.406217	16.960518	0.90202494	1.680639
03/25/2090	300.171065	1.41360037	0.36172682	298.202833	354.233333	16.968442	0.90226321	1.680701
04/03/2119	35.541468	1.41390840	0.36154560	298.429540	354.045681	16.975240	0.90271604	1.681251
04/10/2148	130.456495	1.41404552	0.36129163	298.790574	353.817375	16.998577	0.90316271	1.681495
04/18/2177	224.994114	1.41322499	0.36085953	298.984570	353.625288	17.010635	0.90324928	1.680032

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