Asteroid General Data

2021 RA

General information

Preliminary designation	2021 RA
Group	Apollo
Absolute magnitude	24.69
Approximate diameter (m)	31
Approximate mass (kg)	5.27·10⁷
Number of observations	205
Arc length (days)	11

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	0.651971
a – orbit major semiaxis (astronomical units)	1.87313800
e – orbit eccentricity	0.51122500
ω – orbit ascending node-perihelion angle (degrees)	313.089159
Ω – longitude of orbit ascending node (degrees)	341.900771
i – orbit inclination to the ecliptic plane (degrees)	4.816328

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	206.021850	1.85998605	0.50823299	307.899002	345.410547	4.556515	0.91467978	2.536677
01/21/1858	3.283189	1.85976825	0.50725304	308.495986	344.962750	4.561485	0.91639516	2.536231
01/29/1887	149.043537	1.86362083	0.50830529	309.376156	344.411070	4.579963	0.91633250	2.544116
02/07/1916	275.079848	1.87445935	0.51052354	310.431495	343.875756	4.653333	0.91750373	2.566343
02/14/1945	27.284073	1.87399964	0.51038174	311.114405	343.358907	4.666147	0.91754444	2.565399
02/22/1974	143.501632	1.86914502	0.51000239	311.670418	342.845087	4.697767	0.91587660	2.555437
03/02/2003	276.548751	1.86480629	0.50885398	312.245690	342.317298	4.735151	0.91589218	2.546544
03/09/2032	49.557308	1.87311410	0.51096251	313.080782	341.871526	4.814747	0.91602301	2.563581
03/17/2061	163.389368	1.87379267	0.51035401	313.760580	341.354048	4.825178	0.91749507	2.564974
03/25/2090	278.451128	1.87240288	0.51053137	314.258441	340.955270	4.839092	0.91648247	2.562121
04/03/2119	36.563126	1.87220213	0.50961365	314.838688	340.568109	4.846862	0.91810237	2.561709
04/10/2148	156.273277	1.87236125	0.51002557	315.495405	340.073783	4.861994	0.91740913	2.562035
04/18/2177	272.859711	1.87316043	0.51004585	316.081854	339.658089	4.875803	0.91776273	2.563676

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