Asteroid General Data

2021 RB₄

General information

Preliminary designation	2021 RB₄
Group	Amor
Absolute magnitude	24.88
Approximate diameter (m)	28
Approximate mass (kg)	4.05·10⁷
Number of observations	30
Arc length (days)	7

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	17.905728
a – orbit major semiaxis (astronomical units)	1.38543700
e – orbit eccentricity	0.23221200
ω – orbit ascending node-perihelion angle (degrees)	193.577512
Ω – longitude of orbit ascending node (degrees)	167.952905
i – orbit inclination to the ecliptic plane (degrees)	23.183403

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	298.394107	1.38525239	0.23142573	192.012826	168.741321	23.178948	1.06466934	1.630399
01/21/1858	224.593267	1.38577224	0.23172937	192.238701	168.630792	23.178760	1.06464811	1.631317
01/29/1887	151.114418	1.38543689	0.23174611	192.500824	168.514016	23.182888	1.06436728	1.630725
02/07/1916	78.798756	1.38547877	0.23183600	192.712964	168.395343	23.182453	1.06427491	1.630799
02/14/1945	5.107369	1.38539908	0.23195935	192.902601	168.285481	23.185297	1.06404282	1.630658
02/22/1974	291.053666	1.38550808	0.23209812	193.168309	168.165513	23.183112	1.06393425	1.630851
03/02/2003	219.015474	1.38521935	0.23204257	193.393857	168.049164	23.185585	1.06378949	1.630341
03/09/2032	146.653039	1.38544861	0.23222047	193.643721	167.930646	23.182451	1.06371908	1.630746
03/17/2061	74.016475	1.38501418	0.23206638	193.881251	167.816669	23.183453	1.06359895	1.629979
03/25/2090	3.098610	1.38487591	0.23226714	194.077003	167.702092	23.184897	1.06321474	1.629735
04/03/2119	292.640091	1.38500381	0.23250410	194.310598	167.587046	23.184645	1.06298475	1.629960
04/10/2148	222.399191	1.38521392	0.23277904	194.539784	167.470951	23.185284	1.06276515	1.630331
04/18/2177	151.218984	1.38477127	0.23276361	194.737724	167.355340	23.187908	1.06244691	1.629550

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