Asteroid General Data

1999 HE₁ (234061)

General information

Preliminary designation	1999 HE₁
Number	234061
Group	Apollo
Absolute magnitude	17.69
Approximate diameter (m)	770
Approximate mass (kg)	8.35·10¹¹
Number of observations	443
Arc length (days)	9749

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	168.746475
a – orbit major semiaxis (astronomical units)	2.36450200
e – orbit eccentricity	0.57103100
ω – orbit ascending node-perihelion angle (degrees)	222.105789
Ω – longitude of orbit ascending node (degrees)	65.739723
i – orbit inclination to the ecliptic plane (degrees)	8.146825

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	36.235530	2.36177112	0.57051138	215.354925	70.630333	8.777498	1.01435382	3.629588
01/21/1858	30.084662	2.36811635	0.56580958	216.002410	70.093156	8.703991	1.02821343	3.644225
01/29/1887	26.160865	2.36293894	0.57044118	216.979318	69.385007	8.613195	1.01502126	3.632280
02/07/1916	17.109615	2.36284570	0.57134121	218.501179	68.468225	8.482177	1.01285458	3.632065
02/14/1945	12.999148	2.36881686	0.56746669	219.711203	67.528457	8.358885	1.02459221	3.645842
02/22/1974	5.647902	2.36168954	0.57306027	220.132560	67.164298	8.331150	1.00829909	3.629400
03/02/2003	353.825681	2.36434136	0.57288593	221.926403	65.949900	8.174147	1.00984345	3.635515
03/09/2032	350.298720	2.36535031	0.56983090	222.342561	65.493610	8.129916	1.01750062	3.637842
03/17/2061	343.855610	2.35906599	0.57387252	223.795448	64.506951	8.013094	1.00526284	3.623354
03/25/2090	337.788975	2.36244302	0.57332416	225.561711	63.248072	7.868412	1.00799736	3.631137
04/03/2119	338.319994	2.36260741	0.57301142	225.766085	62.922359	7.847556	1.00880638	3.631516
04/10/2148	332.673092	2.35982330	0.57513317	227.375346	61.734166	7.726897	1.00261065	3.625099
04/18/2177	325.768953	2.36793903	0.57077293	229.193927	60.439308	7.597417	1.01638352	3.643816

Detailed table...

3D animation...

Calculation on the date...

Return to search