Asteroid General Data

2021 DE₂

General information

Preliminary designation	2021 DE₂
Group	Apollo
Absolute magnitude	25.96
Approximate diameter (m)	17
Approximate mass (kg)	9.12·10⁶
Number of observations	25
Arc length (days)	9

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	111.688719
a – orbit major semiaxis (astronomical units)	1.82327800
e – orbit eccentricity	0.55930900
ω – orbit ascending node-perihelion angle (degrees)	120.750551
Ω – longitude of orbit ascending node (degrees)	328.408902
i – orbit inclination to the ecliptic plane (degrees)	5.047859

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	267.813391	1.79559442	0.55370977	115.025886	332.706525	5.323984	0.80135625	2.406096
01/21/1858	285.821746	1.79686292	0.55284606	115.644645	332.160668	5.329013	0.80347433	2.408646
01/29/1887	305.640418	1.79580504	0.55277377	116.132709	331.673379	5.341689	0.80313113	2.406520
02/07/1916	327.718363	1.79505357	0.55378890	117.111590	330.882827	5.354094	0.80097282	2.405009
02/14/1945	351.703364	1.79488729	0.55392319	117.898736	330.280300	5.371142	0.80065760	2.404675
02/22/1974	17.655006	1.82985362	0.55959141	119.692996	329.569881	5.220678	0.80588326	2.475285
03/02/2003	280.858778	1.82904269	0.55919588	120.262127	329.045159	5.222512	0.80624955	2.473639
03/09/2032	192.246454	1.82402914	0.55888963	120.933874	328.263298	5.049111	0.80459817	2.463476
03/17/2061	113.410112	1.82534931	0.55867060	121.514863	327.803447	5.060742	0.80558031	2.466151
03/25/2090	32.266232	1.82388292	0.55926754	122.183784	327.239611	5.077280	0.80384441	2.463179
04/03/2119	311.385978	1.82452393	0.55829452	122.949927	326.644915	5.094728	0.80590222	2.464478
04/10/2148	229.223722	1.82417169	0.55897677	123.635300	326.072567	5.106900	0.80450209	2.463764
04/18/2177	145.245249	1.82564729	0.55811004	124.466155	325.379855	5.037804	0.80673520	2.466754

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