Asteroid General Data

2021 DG

General information

Preliminary designation	2021 DG
Group	Apollo
Absolute magnitude	30.50
Approximate diameter (m)	2
Approximate mass (kg)	1.72·10⁴
Number of observations	17
Arc length (days)	1

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	309.627599
a – orbit major semiaxis (astronomical units)	1.07293231
e – orbit eccentricity	0.38021537
ω – orbit ascending node-perihelion angle (degrees)	280.631118
Ω – longitude of orbit ascending node (degrees)	330.097051
i – orbit inclination to the ecliptic plane (degrees)	9.088380

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	9.819825	1.09085984	0.38454038	276.564099	332.138772	8.491448	0.67138018	1.139342
01/21/1858	181.491760	1.09083455	0.38465442	276.819955	331.885983	8.477880	0.67124022	1.139302
01/29/1887	354.143501	1.09098868	0.38463406	277.182393	331.588432	8.482446	0.67135727	1.139544
02/07/1916	167.120610	1.08807952	0.38445931	277.833404	331.266773	8.499255	0.66975722	1.134989
02/14/1945	14.206329	1.08787810	0.38421628	278.154411	330.924067	8.491118	0.66989762	1.134674
02/22/1974	218.777403	1.09281721	0.38444532	277.751523	330.653492	8.522536	0.67268875	1.142410
03/02/2003	26.208501	1.09060266	0.38417025	278.385572	330.359159	8.524359	0.67162557	1.138939
03/09/2032	281.798101	1.07714718	0.38048179	280.132496	330.052891	9.083765	0.66731229	1.117926
03/17/2061	262.962981	1.07791644	0.38054730	280.342796	329.782646	9.072504	0.66771825	1.119124
03/25/2090	239.510176	1.07778331	0.38062896	280.577755	329.513592	9.057823	0.66754777	1.118917
04/03/2119	211.599921	1.07800307	0.38048397	280.740413	329.201586	9.057579	0.66784018	1.119259
04/10/2148	215.472123	1.07520046	0.38058968	281.518740	328.941177	9.045326	0.66599026	1.114897
04/18/2177	225.167258	1.07580076	0.38087520	281.743961	328.673927	9.033096	0.66605493	1.115831

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