Asteroid General Data

2021 AT₁

General information

Preliminary designation	2021 AT₁
Group	Apollo
Absolute magnitude	25.83
Approximate diameter (m)	18
Approximate mass (kg)	1.09·10⁷
Number of observations	83
Arc length (days)	31

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	132.127898
a – orbit major semiaxis (astronomical units)	1.42184000
e – orbit eccentricity	0.29069600
ω – orbit ascending node-perihelion angle (degrees)	170.565207
Ω – longitude of orbit ascending node (degrees)	289.845178
i – orbit inclination to the ecliptic plane (degrees)	7.874538

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	295.257105	1.42170653	0.29135830	167.381175	291.430681	7.821258	1.00748052	1.695179
01/21/1858	334.472113	1.42271653	0.29154015	167.977163	291.170848	7.832469	1.00793754	1.696986
01/29/1887	13.575622	1.42288218	0.29154848	168.270284	290.988425	7.834276	1.00804304	1.697282
02/07/1916	52.328186	1.42123625	0.29054670	168.808604	290.721193	7.851362	1.00830074	1.694338
02/14/1945	96.455960	1.42108607	0.29058582	169.137968	290.522818	7.852274	1.00813862	1.694069
02/22/1974	137.769808	1.42326608	0.29167366	169.705774	290.281770	7.855572	1.00813686	1.697969
03/02/2003	175.572037	1.42205706	0.29088582	170.016957	290.083017	7.859257	1.00840082	1.695806
03/09/2032	214.656960	1.42198000	0.29071865	170.618729	289.815332	7.875816	1.00858390	1.695668
03/17/2061	257.433914	1.41972325	0.28963550	171.039604	289.564160	7.888132	1.00852100	1.691633
03/25/2090	315.094414	1.41853393	0.28912050	171.359047	289.352015	7.894625	1.00840670	1.689508
04/03/2119	17.352427	1.41930423	0.28926911	171.684895	289.165648	7.891973	1.00874336	1.690884
04/10/2148	83.521195	1.41754268	0.28821176	172.209396	288.918320	7.909294	1.00899021	1.687737
04/18/2177	162.929626	1.41554675	0.28726880	172.743996	288.656939	7.927394	1.00890434	1.684174

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