Asteroid General Data

2021 DF

General information

Preliminary designation	2021 DF
Group	Apollo
Absolute magnitude	26.24
Approximate diameter (m)	15
Approximate mass (kg)	6.19·10⁶
Number of observations	55
Arc length (days)	5

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	3.594244
a – orbit major semiaxis (astronomical units)	1.51439900
e – orbit eccentricity	0.33815700
ω – orbit ascending node-perihelion angle (degrees)	347.417075
Ω – longitude of orbit ascending node (degrees)	147.960134
i – orbit inclination to the ecliptic plane (degrees)	15.971699

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	320.547103	1.51410921	0.33879449	345.278024	148.994634	15.899158	1.00113736	1.863101
01/21/1858	162.236313	1.51510243	0.33913260	345.613579	148.842961	15.905715	1.00128181	1.864935
01/29/1887	7.965902	1.51449329	0.33869292	345.871847	148.701800	15.918494	1.00154513	1.863810
02/07/1916	216.715348	1.51377890	0.33833576	346.138432	148.546462	15.933856	1.00161336	1.862491
02/14/1945	65.738840	1.51351487	0.33822858	346.389587	148.411084	15.941740	1.00160088	1.862004
02/22/1974	281.092816	1.51333910	0.33806346	346.815267	148.235669	15.959483	1.00173445	1.861680
03/02/2003	131.816416	1.51364033	0.33791359	347.021636	148.100143	15.964768	1.00216069	1.862236
03/09/2032	341.297781	1.51440895	0.33818093	347.427701	147.938352	15.972421	1.00226472	1.863654
03/17/2061	186.552494	1.51434988	0.33785793	347.719868	147.800883	15.980395	1.00271476	1.863545
03/25/2090	21.810163	1.51723222	0.33886274	348.054453	147.654797	15.976473	1.00309875	1.868868
04/03/2119	212.841197	1.51703301	0.33884731	348.351733	147.508601	15.986299	1.00299046	1.868500
04/10/2148	47.858334	1.51583138	0.33812189	348.613827	147.371609	15.999747	1.00329561	1.866281
04/18/2177	248.535555	1.51539550	0.33781718	348.879141	147.224995	16.011963	1.00346887	1.865476

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