Asteroid General Data

2021 DP

General information

Preliminary designation	2021 DP
Group	Apollo
Absolute magnitude	26.55
Approximate diameter (m)	13
Approximate mass (kg)	4.04·10⁶
Number of observations	87
Arc length (days)	7

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	25.365231
a – orbit major semiaxis (astronomical units)	1.94820600
e – orbit eccentricity	0.50485100
ω – orbit ascending node-perihelion angle (degrees)	151.854160
Ω – longitude of orbit ascending node (degrees)	332.630706
i – orbit inclination to the ecliptic plane (degrees)	4.156720

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	354.027199	1.93677016	0.50203942	147.227324	335.663216	3.949851	0.96443520	2.695366
01/21/1858	262.921440	1.94090658	0.50387502	148.022094	335.225426	3.959849	0.96293224	2.704005
01/29/1887	165.351985	1.94132820	0.50300928	148.430598	334.950409	3.960624	0.96482209	2.704887
02/07/1916	70.048842	1.93977266	0.50278820	149.219702	334.378691	3.988931	0.96447785	2.701636
02/14/1945	328.881017	1.94524103	0.50355029	149.725014	334.077305	3.990010	0.96571434	2.713068
02/22/1974	228.787009	1.94278215	0.50253472	150.406815	333.512566	4.036905	0.96646667	2.707926
03/02/2003	132.461496	1.93968195	0.50226600	150.912533	333.043452	4.067104	0.96544565	2.701447
03/09/2032	30.199338	1.94832693	0.50482988	151.854778	332.595819	4.156257	0.96475327	2.719527
03/17/2061	269.686756	1.94849732	0.50442831	152.448645	332.251203	4.161341	0.96562011	2.719884
03/25/2090	153.393018	1.94347448	0.50361388	153.234289	331.587120	4.212995	0.96471376	2.709373
04/03/2119	49.232873	1.94223432	0.50266335	153.881071	331.145154	4.224470	0.96594432	2.706781
04/10/2148	308.055619	1.94230454	0.50248052	154.405188	330.881083	4.229559	0.96633434	2.706927
04/18/2177	212.438165	1.93907358	0.50219277	155.012429	330.377035	4.267250	0.96528485	2.700176

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