Asteroid General Data

2021 TR₄

General information

Preliminary designation	2021 TR₄
Group	Apollo
Absolute magnitude	27.82
Approximate diameter (m)	7
Approximate mass (kg)	6.98·10⁵
Number of observations	24
Arc length (days)	1

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	168.678199
a – orbit major semiaxis (astronomical units)	1.09535400
e – orbit eccentricity	0.20783700
ω – orbit ascending node-perihelion angle (degrees)	101.910183
Ω – longitude of orbit ascending node (degrees)	193.447808
i – orbit inclination to the ecliptic plane (degrees)	18.233429

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	133.039578	1.10184599	0.21439099	101.211673	194.540717	17.975344	0.86562014	1.156597
01/21/1858	171.457247	1.10085431	0.21430114	101.160099	194.380531	17.978346	0.86493998	1.155036
01/29/1887	209.031514	1.10164465	0.21448251	101.507323	194.236518	17.978669	0.86536114	1.156280
02/07/1916	240.135436	1.10263763	0.21476721	101.752518	194.079989	17.973736	0.86582723	1.157843
02/14/1945	266.314976	1.10240120	0.21307390	102.314266	193.910834	18.048176	0.86750827	1.157471
02/22/1974	299.453226	1.10189576	0.21294329	102.265312	193.760988	18.053586	0.86725446	1.156675
03/02/2003	359.923975	1.09852902	0.21071297	102.149211	193.579172	18.132249	0.86705471	1.151378
03/09/2032	88.101360	1.09542019	0.20786106	101.987826	193.423898	18.233385	0.86772499	1.146494
03/17/2061	201.488978	1.09525498	0.20798146	102.045696	193.267196	18.230519	0.86746225	1.146234
03/25/2090	254.629590	1.10550069	0.20701000	105.115069	193.087322	18.338789	0.87665099	1.162356
04/03/2119	244.914690	1.10517269	0.20704069	105.177565	192.940117	18.336612	0.87635698	1.161839
04/10/2148	274.876979	1.10135445	0.20272580	105.047177	192.773435	18.488833	0.87808148	1.155823
04/18/2177	316.027964	1.10097502	0.20270038	105.182947	192.631206	18.488471	0.87780697	1.155226

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