Asteroid General Data

1998 HT₃₁

General information

Preliminary designation	1998 HT₃₁
Group	Apollo
Absolute magnitude	20.82
Approximate diameter (m)	180
Approximate mass (kg)	1.11·10¹⁰
Number of observations	135
Arc length (days)	19

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	36.606616
a – orbit major semiaxis (astronomical units)	2.50885500
e – orbit eccentricity	0.69321200
ω – orbit ascending node-perihelion angle (degrees)	80.755919
Ω – longitude of orbit ascending node (degrees)	213.458209
i – orbit inclination to the ecliptic plane (degrees)	6.779247

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	55.599879	2.49086588	0.70618565	77.477886	217.418288	6.856212	0.73185215	3.931209
01/21/1858	194.604373	2.49011452	0.70490093	77.926249	216.904210	6.847854	0.73483048	3.929430
01/29/1887	329.481004	2.49732944	0.70195932	78.431859	216.246810	6.831727	0.74430575	3.946521
02/07/1916	94.610048	2.50063436	0.69954568	79.014231	215.631795	6.819119	0.75132639	3.954357
02/14/1945	211.125433	2.50692745	0.69598331	79.610378	214.958557	6.800663	0.76214778	3.969294
02/22/1974	319.603116	2.51128207	0.69420556	80.140664	214.337670	6.800287	0.76793609	3.979641
03/02/2003	65.245315	2.51017665	0.69312997	80.447940	213.852425	6.780665	0.77029799	3.977013
03/09/2032	172.610833	2.51021543	0.69303775	80.781623	213.395113	6.776105	0.77054139	3.977105
03/17/2061	284.300170	2.50491708	0.69461001	81.096486	212.951406	6.780579	0.76497659	3.964520
03/25/2090	44.128803	2.50024145	0.69584163	81.394343	212.534750	6.782938	0.76046936	3.953425
04/03/2119	171.268680	2.49495516	0.69746559	81.776807	212.023180	6.785707	0.75480979	3.940894
04/10/2148	304.988872	2.49236413	0.69853903	82.086679	211.592747	6.788075	0.75135051	3.934756
04/18/2177	81.766213	2.49046991	0.69871269	82.516921	211.070053	6.776724	0.75034697	3.930272

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