Asteroid General Data

2021 HD₁

General information

Preliminary designation	2021 HD₁
Group	Amor
Absolute magnitude	26.77
Approximate diameter (m)	12
Approximate mass (kg)	2.98·10⁶
Number of observations	44
Arc length (days)	19

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	282.979332
a – orbit major semiaxis (astronomical units)	1.56273700
e – orbit eccentricity	0.34011400
ω – orbit ascending node-perihelion angle (degrees)	126.745537
Ω – longitude of orbit ascending node (degrees)	69.093228
i – orbit inclination to the ecliptic plane (degrees)	1.686790

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	121.827495	1.55603338	0.33762040	122.498746	71.708428	1.639036	1.03068477	1.941015
01/21/1858	93.504280	1.55801194	0.33867087	123.123677	71.383478	1.644244	1.03035868	1.944719
01/29/1887	62.639349	1.55877906	0.33874477	123.304973	71.343336	1.645889	1.03075080	1.946155
02/07/1916	28.896277	1.55934047	0.33910548	124.412926	70.490516	1.661872	1.03055958	1.947207
02/14/1945	351.933564	1.56127625	0.33941395	125.309901	69.927505	1.674124	1.03135732	1.950834
02/22/1974	307.627704	1.56115298	0.33934336	125.460214	69.891798	1.672651	1.03138609	1.950603
03/02/2003	260.953614	1.56150217	0.33964024	125.811574	69.760874	1.672351	1.03115319	1.951257
03/09/2032	212.109475	1.56255051	0.34005404	126.752596	69.109085	1.688220	1.03119890	1.953222
03/17/2061	160.034396	1.56276211	0.34010895	126.943775	69.066398	1.686448	1.03125273	1.953619
03/25/2090	111.940621	1.56150225	0.33959388	127.314108	68.881093	1.687868	1.03122564	1.951257
04/03/2119	62.800113	1.56218493	0.33988454	127.697354	68.754978	1.687478	1.03122243	1.952537
04/10/2148	13.119730	1.56147222	0.33969454	127.930767	68.663123	1.689395	1.03104864	1.951201
04/18/2177	328.164057	1.56112861	0.34000636	128.105573	68.609468	1.687885	1.03033494	1.950557

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