Asteroid General Data

2021 HP₂

General information

Preliminary designation	2021 HP₂
Group	Aten
Absolute magnitude	27.40
Approximate diameter (m)	9
Approximate mass (kg)	1.25·10⁶
Number of observations	14
Arc length (days)	1

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	342.943411
a – orbit major semiaxis (astronomical units)	0.90852500
e – orbit eccentricity	0.26848700
ω – orbit ascending node-perihelion angle (degrees)	311.924010
Ω – longitude of orbit ascending node (degrees)	30.794489
i – orbit inclination to the ecliptic plane (degrees)	13.538750

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	234.134841	0.91284377	0.26524104	310.910162	32.319903	13.760514	0.67072014	0.872158
01/21/1858	343.997634	0.91188790	0.26580293	311.220627	32.087824	13.735475	0.66950542	0.870789
01/29/1887	101.273141	0.91206082	0.26648069	311.420951	31.891480	13.709198	0.66901423	0.871036
02/07/1916	224.963314	0.91177997	0.26685636	311.387178	31.637515	13.653570	0.66846569	0.870634
02/14/1945	344.161504	0.91079074	0.26755841	311.534681	31.410965	13.615834	0.66710102	0.869218
02/22/1974	129.296796	0.90975343	0.26726116	311.531937	31.200739	13.607957	0.66661167	0.867733
03/02/2003	285.117355	0.90984148	0.26703136	311.548822	31.000993	13.606140	0.66688528	0.867859
03/09/2032	97.621360	0.90901552	0.26871955	311.978863	30.758015	13.531953	0.66474528	0.866678
03/17/2061	286.295561	0.90842097	0.26927896	312.305701	30.533776	13.514144	0.66380231	0.865827
03/25/2090	106.665222	0.90892734	0.26914420	312.355907	30.311874	13.503661	0.66429482	0.866551
04/03/2119	271.081461	0.90970108	0.26927788	312.341875	30.097273	13.483967	0.66473870	0.867658
04/10/2148	79.235031	0.90933501	0.26979279	312.470567	29.877998	13.454557	0.66400298	0.867135
04/18/2177	260.143327	0.90845055	0.27023004	312.702406	29.667739	13.439878	0.66295993	0.865870

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