Asteroid General Data

2021 AR₄

General information

Preliminary designation	2021 AR₄
Group	Amor
Absolute magnitude	19.58
Approximate diameter (m)	320
Approximate mass (kg)	6.14·10¹⁰
Number of observations	55
Arc length (days)	97

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	240.020933
a – orbit major semiaxis (astronomical units)	2.28238300
e – orbit eccentricity	0.48674200
ω – orbit ascending node-perihelion angle (degrees)	170.299200
Ω – longitude of orbit ascending node (degrees)	244.844068
i – orbit inclination to the ecliptic plane (degrees)	36.338740

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	87.364978	2.27888494	0.49478250	167.219895	246.118440	36.072507	1.15133255	3.440204
01/21/1858	242.084350	2.27984353	0.49343752	167.633549	245.913353	36.110554	1.15488320	3.442375
01/29/1887	38.334445	2.27875112	0.49272965	168.030944	245.744688	36.172185	1.15594288	3.439901
02/07/1916	193.249414	2.28068310	0.48995166	168.628789	245.529455	36.172752	1.16325862	3.444277
02/14/1945	347.789042	2.28107313	0.48911346	168.908247	245.376060	36.195863	1.16536956	3.445160
02/22/1974	142.380697	2.27883730	0.48933384	169.575124	245.144156	36.327917	1.16372509	3.440096
03/02/2003	298.122616	2.27996919	0.48780947	170.004436	244.989892	36.339577	1.16777863	3.442660
03/09/2032	92.953463	2.27862830	0.48755196	170.421926	244.784885	36.406825	1.16767861	3.439623
03/17/2061	247.721321	2.27933089	0.48685387	170.808549	244.614560	36.446572	1.16962982	3.441214
03/25/2090	43.478506	2.27788080	0.48677334	171.212451	244.426083	36.511811	1.16906917	3.437931
04/03/2119	199.535041	2.27947574	0.48559118	171.655503	244.242518	36.531808	1.17258242	3.441542
04/10/2148	354.563289	2.27912147	0.48467906	172.034228	244.074876	36.547263	1.17447901	3.440740
04/18/2177	148.717940	2.28083193	0.48293051	172.454227	243.874683	36.536648	1.17934859	3.444614

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