Asteroid General Data

2021 PJ₄

General information

Preliminary designation	2021 PJ₄
Group	Apollo
Absolute magnitude	24.35
Approximate diameter (m)	36
Approximate mass (kg)	8.43·10⁷
Number of observations	69
Arc length (days)	16

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	103.151477
a – orbit major semiaxis (astronomical units)	2.45889400
e – orbit eccentricity	0.67706100
ω – orbit ascending node-perihelion angle (degrees)	253.247810
Ω – longitude of orbit ascending node (degrees)	137.018230
i – orbit inclination to the ecliptic plane (degrees)	2.091102

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	129.646909	2.53683798	0.62662768	249.666128	139.662788	2.086107	0.94718508	4.040543
01/21/1858	193.420224	2.54097640	0.62693997	249.884415	139.209374	2.083925	0.94793673	4.050434
01/29/1887	260.670026	2.52877726	0.63457934	249.880655	139.129730	2.089068	0.92406746	4.021300
02/07/1916	349.800018	2.51014311	0.64526255	250.566783	138.769532	2.092326	0.89044177	3.976934
02/14/1945	109.257260	2.49502778	0.65607878	251.722190	138.096371	2.093038	0.85809299	3.941066
02/22/1974	258.574891	2.47252386	0.66988255	252.848121	137.387953	2.095101	0.81622328	3.887867
03/02/2003	71.050571	2.46761254	0.67547951	253.060972	137.200199	2.099051	0.80079082	3.876288
03/09/2032	254.765090	2.45947282	0.67673337	253.254451	136.978390	2.090442	0.79506550	3.857124
03/17/2061	76.610243	2.46755062	0.67358682	253.561779	136.561975	2.088083	0.80544105	3.876142
03/25/2090	237.800994	2.48757757	0.66192138	255.065928	135.285251	2.078688	0.84099679	3.923427
04/03/2119	7.763589	2.50373843	0.65075287	257.106480	133.649288	2.073279	0.87442347	3.961722
04/10/2148	106.013594	2.52360300	0.63917192	258.873584	132.278643	2.069293	0.91058682	4.008964
04/18/2177	178.053624	2.53941369	0.62963036	259.727714	131.393940	2.070056	0.94052174	4.046698

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