Asteroid General Data

2021 SK₁

General information

Preliminary designation	2021 SK₁
Group	Apollo
Absolute magnitude	25.30
Approximate diameter (m)	23
Approximate mass (kg)	2.27·10⁷
Number of observations	25
Arc length (days)	3

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	160.817445
a – orbit major semiaxis (astronomical units)	1.25843900
e – orbit eccentricity	0.23009000
ω – orbit ascending node-perihelion angle (degrees)	221.505893
Ω – longitude of orbit ascending node (degrees)	184.267079
i – orbit inclination to the ecliptic plane (degrees)	25.551410

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	133.740906	1.25728824	0.22824220	220.318408	185.055048	25.585048	0.97032200	1.409785
01/21/1858	339.707722	1.25870947	0.22921337	220.421476	184.934332	25.570759	0.97019643	1.412176
01/29/1887	174.773980	1.25943378	0.22963348	220.510500	184.824809	25.565127	0.97022562	1.413395
02/07/1916	8.472638	1.25852104	0.22930892	220.739967	184.704859	25.567536	0.96993093	1.411859
02/14/1945	211.189427	1.25728919	0.22893610	221.083268	184.588368	25.571013	0.96945030	1.409787
02/22/1974	60.910955	1.25785185	0.22923570	221.206895	184.471028	25.564079	0.96950730	1.410733
03/02/2003	269.721169	1.25719659	0.22904445	221.396054	184.361806	25.565591	0.96924270	1.409631
03/09/2032	116.855332	1.25857733	0.23019009	221.555610	184.245258	25.548929	0.96886530	1.411954
03/17/2061	311.353723	1.25964112	0.23087277	221.627672	184.132866	25.538952	0.96882428	1.413744
03/25/2090	141.028307	1.26038482	0.23184463	221.876990	184.017817	25.524628	0.96817136	1.414996
04/03/2119	325.342890	1.26015916	0.23190758	222.051474	183.905034	25.524344	0.96791870	1.414616
04/10/2148	149.574534	1.26117095	0.23255829	222.120040	183.789236	25.517019	0.96787519	1.416321
04/18/2177	323.766300	1.26168700	0.23346509	222.400600	183.666333	25.500567	0.96712713	1.417190

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