Asteroid General Data

2021 HD₂

General information

Preliminary designation	2021 HD₂
Group	Apollo
Absolute magnitude	27.07
Approximate diameter (m)	10
Approximate mass (kg)	1.97·10⁶
Number of observations	32
Arc length (days)	4

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	253.829667
a – orbit major semiaxis (astronomical units)	2.14935900
e – orbit eccentricity	0.53215000
ω – orbit ascending node-perihelion angle (degrees)	49.610512
Ω – longitude of orbit ascending node (degrees)	175.598771
i – orbit inclination to the ecliptic plane (degrees)	1.230414

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	93.030369	2.15486365	0.53013874	42.837295	180.390712	1.253437	1.01248695	3.163227
01/21/1858	156.363105	2.15841832	0.53381629	43.832787	179.802393	1.262101	1.00621945	3.171057
01/29/1887	207.877115	2.15932783	0.53304174	44.180883	179.500421	1.267080	1.00831597	3.173061
02/07/1916	260.655489	2.15897367	0.53275959	44.771402	179.404130	1.276995	1.00875976	3.172281
02/14/1945	321.469831	2.15051025	0.53432285	45.322918	179.245015	1.282592	1.00144348	3.153646
02/22/1974	27.765051	2.15504743	0.53044080	45.826758	178.891568	1.284004	1.01192234	3.163631
03/02/2003	93.543984	2.15575845	0.53211109	48.785230	176.414003	1.247038	1.00865548	3.165197
03/09/2032	159.216519	2.14940126	0.53204667	49.644264	175.590064	1.231146	1.00581947	3.151206
03/17/2061	233.559132	2.15218467	0.53100044	50.321241	175.426974	1.239128	1.00937366	3.157330
03/25/2090	308.604981	2.14751656	0.53469670	50.485064	175.425007	1.250666	0.99924654	3.147063
04/03/2119	21.582640	2.15035580	0.53187178	51.087174	175.126998	1.254629	1.00664224	3.153306
04/10/2148	90.764716	2.15030408	0.53356059	51.902907	174.825603	1.262510	1.00298658	3.153192
04/18/2177	159.728606	2.15258118	0.53226889	52.135809	174.575348	1.269114	1.00682918	3.158202

Detailed table...

3D animation...

Calculation on the date...

Return to search