Asteroid General Data

2021 RF₄

General information

Preliminary designation	2021 RF₄
Group	Amor
Absolute magnitude	23.40
Approximate diameter (m)	55
Approximate mass (kg)	3.13·10⁸
Number of observations	46
Arc length (days)	61

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	91.832429
a – orbit major semiaxis (astronomical units)	2.50092400
e – orbit eccentricity	0.51623100
ω – orbit ascending node-perihelion angle (degrees)	327.312787
Ω – longitude of orbit ascending node (degrees)	39.938905
i – orbit inclination to the ecliptic plane (degrees)	3.913247

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	255.245884	2.51296999	0.50755759	326.260669	42.299579	3.916819	1.23749300	3.983654
01/21/1858	355.227284	2.51725503	0.50183510	326.379222	42.168636	3.895156	1.25400811	3.993847
01/29/1887	87.513645	2.52059634	0.49825706	326.198256	42.024652	3.878440	1.26469143	4.001802
02/07/1916	175.649262	2.52385889	0.49625168	326.028620	41.827579	3.866895	1.27138967	4.009574
02/14/1945	265.582488	2.51806187	0.49948657	326.089868	41.421355	3.870718	1.26032379	3.995767
02/22/1974	2.913862	2.51305110	0.50395181	326.247622	40.984704	3.879889	1.24659446	3.983846
03/02/2003	110.295706	2.50756793	0.51007066	326.801318	40.412478	3.894927	1.22853110	3.970815
03/09/2032	231.494077	2.49489983	0.51929981	327.443308	39.787670	3.924466	1.19929883	3.940763
03/17/2061	6.546228	2.48955695	0.52477385	327.923733	39.307385	3.940373	1.18310256	3.928111
03/25/2090	154.394591	2.48015386	0.53169231	328.248669	38.772583	3.959176	1.16147513	3.905877
04/03/2119	309.943116	2.47938238	0.53346221	328.290678	38.493609	3.960197	1.15672558	3.904055
04/10/2148	108.146525	2.47778639	0.53381079	328.171686	38.253808	3.956374	1.15511728	3.900286
04/18/2177	262.507072	2.48310470	0.52959081	328.077416	38.115442	3.938456	1.16807528	3.912850

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