Asteroid General Data

2015 HP₁₇₁

General information

Preliminary designation	2015 HP₁₇₁
Group	Apollo
Absolute magnitude	20.09
Approximate diameter (m)	250
Approximate mass (kg)	3.03·10¹⁰
Number of observations	118
Arc length (days)	2797

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	219.505398
a – orbit major semiaxis (astronomical units)	1.80631100
e – orbit eccentricity	0.61832000
ω – orbit ascending node-perihelion angle (degrees)	190.977240
Ω – longitude of orbit ascending node (degrees)	126.661231
i – orbit inclination to the ecliptic plane (degrees)	11.740076

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	84.756297	1.80678469	0.61769136	188.904924	127.897351	11.785959	0.69074941	2.428624
01/21/1858	65.940420	1.80684824	0.61771868	189.244348	127.761787	11.776643	0.69072432	2.428752
01/29/1887	44.861878	1.80779759	0.61671095	189.593525	127.540726	11.749756	0.69290903	2.430666
02/07/1916	24.145712	1.80727144	0.61755944	189.839434	127.354517	11.758276	0.69117390	2.429605
02/14/1945	5.364657	1.80649754	0.61834872	190.235963	127.189799	11.758114	0.68945210	2.428045
02/22/1974	347.118217	1.80650434	0.61763604	190.523276	127.000436	11.743599	0.69074216	2.428058
03/02/2003	328.549955	1.80611660	0.61790724	190.763214	126.815993	11.740451	0.69010408	2.427277
03/09/2032	311.820876	1.80563278	0.61840556	191.012523	126.628824	11.736485	0.68901943	2.426301
03/17/2061	296.901860	1.80545917	0.61857146	191.379456	126.436222	11.726806	0.68865365	2.425952
03/25/2090	280.837567	1.80598937	0.61735591	191.735722	126.247130	11.693567	0.69105115	2.427020
04/03/2119	264.990140	1.80586628	0.61741464	191.931133	126.083840	11.690746	0.69089800	2.426772
04/10/2148	250.812190	1.80512296	0.61876422	192.267864	125.912218	11.696029	0.68817745	2.425274
04/18/2177	236.743968	1.80590492	0.61834347	192.623212	125.743803	11.672755	0.68923541	2.426850

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