Asteroid General Data

2017 AA₂₁

General information

Preliminary designation	2017 AA₂₁
Group	Apollo
Absolute magnitude	26.02
Approximate diameter (m)	17
Approximate mass (kg)	8.39·10⁶
Number of observations	7
Arc length (days)	1

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	237.436800
a – orbit major semiaxis (astronomical units)	1.90152700
e – orbit eccentricity	0.47200400
ω – orbit ascending node-perihelion angle (degrees)	172.707906
Ω – longitude of orbit ascending node (degrees)	332.036923
i – orbit inclination to the ecliptic plane (degrees)	2.287693

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	253.159766	1.85248759	0.45528305	165.765568	336.287272	2.227341	1.00908140	2.521353
01/21/1858	77.028676	1.85254346	0.45503042	166.302697	335.999648	2.219799	1.00957982	2.521467
01/29/1887	256.897467	1.85498040	0.45661982	166.962921	335.675739	2.218464	1.00795959	2.526444
02/07/1916	71.477620	1.85372479	0.45654163	167.434272	335.410244	2.212442	1.00742225	2.523879
02/14/1945	236.408961	1.85872186	0.45677427	167.959604	335.116326	2.200909	1.00970554	2.534091
02/22/1974	32.925823	1.86166043	0.45854335	168.585669	334.787969	2.193665	1.00800842	2.540103
03/02/2003	184.653973	1.86230530	0.45799107	169.114599	334.497804	2.184405	1.00938611	2.541423
03/09/2032	341.502370	1.85899613	0.45740078	169.599200	334.130057	2.187134	1.00868985	2.534652
03/17/2061	140.884617	1.86184778	0.45782783	170.228677	333.803544	2.175970	1.00944204	2.540486
03/25/2090	293.265640	1.86220001	0.45708527	170.647028	333.586365	2.166749	1.01101580	2.541207
04/03/2119	85.999279	1.85959557	0.45628044	171.278506	333.230335	2.161540	1.01109848	2.535878
04/10/2148	245.202485	1.85950882	0.45709487	171.691066	333.022184	2.157242	1.00953688	2.535701
04/18/2177	42.199571	1.86040376	0.45735910	172.240567	332.727262	2.148493	1.00953116	2.537531

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