Asteroid General Data

2021 SL₂₈

General information

Preliminary designation	2021 SL₂₈
Group	Apollo
Absolute magnitude	24.83
Approximate diameter (m)	29
Approximate mass (kg)	4.34·10⁷
Number of observations	26
Arc length (days)	31

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	69.384610
a – orbit major semiaxis (astronomical units)	2.53944200
e – orbit eccentricity	0.60748300
ω – orbit ascending node-perihelion angle (degrees)	192.235574
Ω – longitude of orbit ascending node (degrees)	231.438506
i – orbit inclination to the ecliptic plane (degrees)	4.015868

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	234.178138	2.47304161	0.65164221	185.993020	235.501694	4.230371	0.86150330	3.889088
01/21/1858	56.974428	2.45582036	0.66021316	186.437001	235.304378	4.297108	0.83445545	3.848536
01/29/1887	256.598978	2.45081864	0.66270388	186.537725	235.104901	4.324750	0.82665161	3.836784
02/07/1916	91.865528	2.46308839	0.65766854	186.729243	234.774342	4.295841	0.84319264	3.865633
02/14/1945	263.509113	2.47673659	0.64774102	187.580455	234.185525	4.245287	0.87245269	3.897807
02/22/1974	34.854429	2.50702550	0.62963121	189.894192	232.919635	4.140720	0.92852401	3.969527
03/02/2003	130.482809	2.52568861	0.61758929	191.401664	232.088807	4.069539	0.96585036	4.013935
03/09/2032	196.293670	2.54375374	0.60577668	192.273588	231.420385	4.008311	1.00280704	4.057077
03/17/2061	246.174473	2.55046128	0.60305782	192.386223	231.059212	3.995120	1.01238565	4.073134
03/25/2090	297.182965	2.53727981	0.60801791	192.468466	230.858753	4.035682	0.99456824	4.041598
04/03/2119	8.479656	2.52139277	0.61881130	192.970223	230.658125	4.101139	0.96112643	4.003699
04/10/2148	111.881367	2.50403207	0.63011120	194.164684	230.254326	4.175754	0.92621342	3.962419
04/18/2177	256.268976	2.47053548	0.64579647	195.678710	229.712360	4.257214	0.87507238	3.883178

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