Asteroid General Data

2021 RS₄

General information

Preliminary designation	2021 RS₄
Group	Apollo
Absolute magnitude	24.97
Approximate diameter (m)	27
Approximate mass (kg)	3.58·10⁷
Number of observations	19
Arc length (days)	27

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	312.469814
a – orbit major semiaxis (astronomical units)	1.41233300
e – orbit eccentricity	0.45664100
ω – orbit ascending node-perihelion angle (degrees)	110.218408
Ω – longitude of orbit ascending node (degrees)	331.229106
i – orbit inclination to the ecliptic plane (degrees)	3.474129

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	17.439318	1.40206839	0.45290991	106.799437	333.781052	3.486737	0.76705772	1.660177
01/21/1858	189.228644	1.40222484	0.45286353	107.454805	333.165821	3.461343	0.76720835	1.660455
01/29/1887	1.331329	1.40305268	0.45310476	107.895866	332.841191	3.457538	0.76732282	1.661926
02/07/1916	162.030420	1.40489839	0.45341969	108.465047	332.483077	3.456042	0.76788980	1.665206
02/14/1945	299.742105	1.40807794	0.45395160	109.010010	332.163751	3.450596	0.76887871	1.670862
02/22/1974	74.603771	1.40704580	0.45361143	109.506636	331.800471	3.447477	0.76879374	1.669025
03/02/2003	216.587025	1.40637046	0.45339928	109.872586	331.518968	3.447856	0.76872310	1.667824
03/09/2032	1.911659	1.40617532	0.45364394	110.347796	331.184026	3.448464	0.76827240	1.667477
03/17/2061	151.967364	1.40483951	0.45310906	110.890450	330.774719	3.448246	0.76829400	1.665101
03/25/2090	308.609831	1.40387158	0.45301483	111.350773	330.425547	3.448820	0.76789693	1.663381
04/03/2119	107.319832	1.40413331	0.45278922	111.759859	330.120566	3.449304	0.76835688	1.663846
04/10/2148	261.028273	1.40505578	0.45309207	112.210626	329.788675	3.449515	0.76843615	1.665486
04/18/2177	50.458062	1.40581046	0.45298967	112.792764	329.380111	3.449284	0.76899285	1.666828

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