Asteroid General Data

2021 PH₄

General information

Preliminary designation	2021 PH₄
Group	Apollo
Absolute magnitude	21.17
Approximate diameter (m)	150
Approximate mass (kg)	6.82·10⁹
Number of observations	93
Arc length (days)	174

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	34.551468
a – orbit major semiaxis (astronomical units)	2.71594500
e – orbit eccentricity	0.64951200
ω – orbit ascending node-perihelion angle (degrees)	330.555084
Ω – longitude of orbit ascending node (degrees)	58.095361
i – orbit inclination to the ecliptic plane (degrees)	6.730664

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	207.123514	2.71194669	0.65208929	323.381772	63.651957	6.195467	0.94351530	4.466037
01/21/1858	30.241348	2.68824167	0.65986222	324.951660	62.309789	6.360337	0.91437254	4.407609
01/29/1887	226.044923	2.69571053	0.66083430	325.960723	61.359311	6.441641	0.91429254	4.425991
02/07/1916	66.533991	2.70609198	0.65666121	326.708573	60.965247	6.465526	0.92910634	4.451583
02/14/1945	259.599055	2.70626935	0.65512776	328.063105	60.002551	6.558033	0.93331718	4.452020
02/22/1974	91.280196	2.71167567	0.65176852	329.292481	59.085206	6.645103	0.94429082	4.465368
03/02/2003	276.757075	2.69914282	0.65743772	329.950895	58.544917	6.715815	0.92462453	4.434446
03/09/2032	93.868903	2.70123970	0.65621259	331.190678	57.637384	6.805628	0.92865220	4.439615
03/17/2061	273.640023	2.71761300	0.64975944	331.638778	57.312644	6.810260	0.95181831	4.480041
03/25/2090	99.875382	2.70816896	0.65242670	332.843801	56.446550	6.913080	0.94128721	4.456709
04/03/2119	291.490975	2.70506244	0.65450184	334.140855	55.567964	7.016916	0.93459410	4.449042
04/10/2148	128.189003	2.69630594	0.66045562	335.188791	54.862718	7.121856	0.91551552	4.427457
04/18/2177	320.251676	2.68942486	0.66179422	335.817179	54.324004	7.180977	0.90957904	4.410519

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