Asteroid General Data

1998 HL₄₉ (136900)

General information

Preliminary designation	1998 HL₄₉
Number	136900
Group	Apollo
Absolute magnitude	17.39
Approximate diameter (m)	880
Approximate mass (kg)	1.26·10¹²
Number of observations	883
Arc length (days)	9169

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	186.889048
a – orbit major semiaxis (astronomical units)	1.74761000
e – orbit eccentricity	0.63658600
ω – orbit ascending node-perihelion angle (degrees)	239.283126
Ω – longitude of orbit ascending node (degrees)	205.929599
i – orbit inclination to the ecliptic plane (degrees)	10.977601

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	188.285466	1.73957392	0.63520433	234.991553	209.761827	11.261776	0.63458903	2.294378
01/21/1858	60.871664	1.74045860	0.63488288	235.561426	209.230519	11.222498	0.63547123	2.296128
01/29/1887	289.843046	1.74141148	0.63502762	236.201995	208.670503	11.179293	0.63556709	2.298014
02/07/1916	157.714801	1.74114635	0.63558848	236.808644	208.142137	11.139476	0.63449379	2.297489
02/14/1945	23.052573	1.74212119	0.63515531	237.450004	207.601030	11.097662	0.63560367	2.299419
02/22/1974	246.132686	1.74153753	0.63609186	238.160426	207.008408	11.051883	0.63375968	2.298264
03/02/2003	110.174734	1.74222335	0.63595405	238.694975	206.508851	11.032302	0.63424936	2.299621
03/09/2032	319.992215	1.74711065	0.63697314	239.541624	205.741049	10.961697	0.63424809	2.309305
03/17/2061	162.567414	1.74757635	0.63774859	240.049055	205.263841	10.940291	0.63306200	2.310228
03/25/2090	4.033427	1.74787908	0.63774559	240.524447	204.797929	10.913661	0.63317691	2.310828
04/03/2119	204.725637	1.75029596	0.63766432	241.466642	204.004737	10.844121	0.63419467	2.315623
04/10/2148	36.142633	1.75034871	0.63825972	242.038429	203.513919	10.815925	0.63317163	2.315728
04/18/2177	234.366478	1.74816489	0.63782737	242.738677	202.886996	10.779226	0.63313748	2.311395

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