Asteroid General Data

2021 UD

General information

Preliminary designation	2021 UD
Group	Amor
Absolute magnitude	24.58
Approximate diameter (m)	32
Approximate mass (kg)	6.14·10⁷
Number of observations	18
Arc length (days)	9

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	47.056289
a – orbit major semiaxis (astronomical units)	1.75580500
e – orbit eccentricity	0.36088900
ω – orbit ascending node-perihelion angle (degrees)	165.373941
Ω – longitude of orbit ascending node (degrees)	205.891488
i – orbit inclination to the ecliptic plane (degrees)	29.465049

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	50.088890	1.75547775	0.36332702	163.543944	206.832797	29.340811	1.11766525	2.325914
01/21/1858	222.398868	1.75528782	0.36285439	163.782496	206.700679	29.360933	1.11837393	2.325536
01/29/1887	35.321816	1.75509467	0.36292278	164.056693	206.552470	29.391285	1.11813083	2.325152
02/07/1916	206.970580	1.75602280	0.36249365	164.328174	206.409747	29.399777	1.11947568	2.326997
02/14/1945	18.240727	1.75520155	0.36191685	164.567409	206.272537	29.416182	1.11996454	2.325365
02/22/1974	190.892553	1.75513414	0.36132710	164.884692	206.135211	29.435509	1.12095662	2.325231
03/02/2003	3.561861	1.75537761	0.36106711	165.115884	206.007877	29.451142	1.12156850	2.325715
03/09/2032	174.383357	1.75536475	0.36076212	165.457977	205.856152	29.472567	1.12209564	2.325689
03/17/2061	346.735467	1.75515316	0.36008387	165.715124	205.730617	29.484752	1.12315082	2.325269
03/25/2090	159.544659	1.75496528	0.35998946	166.016172	205.593725	29.513650	1.12319627	2.324895
04/03/2119	331.278031	1.75566969	0.35985510	166.306395	205.454216	29.527692	1.12388300	2.326295
04/10/2148	142.779279	1.75522211	0.35949595	166.557420	205.308291	29.551143	1.12422688	2.325406
04/18/2177	315.543587	1.75496904	0.35896021	166.849554	205.175791	29.559878	1.12500499	2.324903

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