Asteroid General Data

2021 AS

General information

Preliminary designation	2021 AS
Group	Apollo
Absolute magnitude	19.95
Approximate diameter (m)	270
Approximate mass (kg)	3.68·10¹⁰
Number of observations	28
Arc length (days)	8

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	122.195884
a – orbit major semiaxis (astronomical units)	2.57513200
e – orbit eccentricity	0.83123400
ω – orbit ascending node-perihelion angle (degrees)	169.250903
Ω – longitude of orbit ascending node (degrees)	57.960821
i – orbit inclination to the ecliptic plane (degrees)	27.663122

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	267.552604	2.59661658	0.85156791	155.840432	69.963146	15.868962	0.38542124	4.184199
01/21/1858	250.581683	2.57879620	0.85765917	156.801149	69.166362	16.496039	0.36706800	4.141199
01/29/1887	273.606329	2.57098755	0.84790924	163.247933	62.659269	21.876913	0.39102345	4.122404
02/07/1916	262.133326	2.59652872	0.84005162	164.027626	62.137999	22.059523	0.41531057	4.183987
02/14/1945	246.610774	2.57089413	0.84621307	164.682196	61.799633	22.643244	0.39536991	4.122180
02/22/1974	267.856013	2.57078906	0.83455584	168.164825	58.511845	27.128286	0.42532205	4.121927
03/02/2003	251.766886	2.59701657	0.82582341	168.816508	58.140581	27.238416	0.45233949	4.185166
03/09/2032	239.202467	2.57565809	0.83135607	169.297634	57.957106	27.685740	0.43436911	4.133643
03/17/2061	262.271282	2.58703395	0.81546129	172.509791	55.648274	31.245204	0.47740790	4.161058
03/25/2090	244.773628	2.59798080	0.81237016	172.666482	55.594516	31.114535	0.48745871	4.187497
04/03/2119	231.986679	2.55790992	0.82672467	173.577636	55.238083	32.406751	0.44322270	4.090991
04/10/2148	257.827386	2.58319871	0.80812995	176.047793	53.817561	33.500934	0.49563846	4.151809
04/18/2177	240.844105	2.59598271	0.80389029	176.247483	53.792886	33.292235	0.50909741	4.182667

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