Asteroid General Data

2011 HP₄

General information

Preliminary designation	2011 HP₄
Group	Apollo
Absolute magnitude	27.53
Approximate diameter (m)	8
Approximate mass (kg)	1.04·10⁶
Number of observations	16
Arc length (days)	2

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	262.673982
a – orbit major semiaxis (astronomical units)	2.18826200
e – orbit eccentricity	0.61153300
ω – orbit ascending node-perihelion angle (degrees)	234.680059
Ω – longitude of orbit ascending node (degrees)	40.926539
i – orbit inclination to the ecliptic plane (degrees)	3.412517

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	320.846156	2.19226908	0.61027423	225.543350	48.209148	3.724475	0.85438375	3.245947
01/21/1858	303.657772	2.18792353	0.61315587	226.495620	47.464641	3.683999	0.84638537	3.236300
01/29/1887	284.058065	2.18853585	0.61419037	228.119816	46.172266	3.626223	0.84435820	3.237659
02/07/1916	266.652785	2.19094517	0.61250097	228.617601	45.662146	3.603035	0.84898913	3.243007
02/14/1945	237.974165	2.19623773	0.61520610	229.985747	44.465572	3.553659	0.84509888	3.254765
02/22/1974	203.996738	2.19894846	0.61337453	231.571235	43.210873	3.498434	0.85016949	3.260793
03/02/2003	168.138743	2.19970053	0.61377814	233.028229	42.047209	3.448620	0.84957243	3.262466
03/09/2032	151.952807	2.18757852	0.61180880	234.796044	40.841500	3.411748	0.84919872	3.235535
03/17/2061	144.294448	2.18776225	0.61335569	235.650326	40.072939	3.379303	0.84588582	3.235943
03/25/2090	133.081268	2.18546929	0.61411199	237.009037	38.883736	3.346533	0.84334640	3.230857
04/03/2119	118.097310	2.19333932	0.61177977	238.222932	37.803632	3.305786	0.85149871	3.248324
04/10/2148	104.164770	2.18994092	0.61071556	239.762171	36.537395	3.266914	0.85250992	3.240777
04/18/2177	89.055706	2.19028338	0.61133525	241.436165	35.168261	3.227286	0.85128595	3.241538

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