Asteroid General Data

2021 AU₄

General information

Preliminary designation	2021 AU₄
Group	Apollo
Absolute magnitude	24.20
Approximate diameter (m)	38
Approximate mass (kg)	1.04·10⁸
Number of observations	23
Arc length (days)	6

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	70.909106
a – orbit major semiaxis (astronomical units)	1.43405700
e – orbit eccentricity	0.41861700
ω – orbit ascending node-perihelion angle (degrees)	78.032579
Ω – longitude of orbit ascending node (degrees)	117.778979
i – orbit inclination to the ecliptic plane (degrees)	13.592054

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	44.040529	1.43433607	0.41816651	75.799014	119.511821	13.649471	0.83454476	1.717817
01/21/1858	5.308828	1.43459567	0.41833184	76.156736	119.236204	13.647268	0.83445863	1.718284
01/29/1887	327.568621	1.43433004	0.41833881	76.480079	119.005662	13.633725	0.83429412	1.717807
02/07/1916	287.818171	1.43432908	0.41860311	76.767289	118.752580	13.627191	0.83391447	1.717805
02/14/1945	249.764230	1.43428323	0.41853422	77.126621	118.497856	13.617058	0.83398662	1.717722
02/22/1974	211.199769	1.43406193	0.41865018	77.379212	118.270815	13.611073	0.83369164	1.717325
03/02/2003	173.556830	1.43419580	0.41848575	77.774458	117.985516	13.612616	0.83400529	1.717565
03/09/2032	138.805324	1.43388589	0.41867046	78.070480	117.754328	13.592031	0.83356023	1.717009
03/17/2061	102.634427	1.43387937	0.41869434	78.370560	117.479288	13.585998	0.83352219	1.716997
03/25/2090	67.795730	1.43347806	0.41873856	78.698574	117.243763	13.588326	0.83322551	1.716276
04/03/2119	35.010058	1.43339732	0.41887372	79.149014	116.958458	13.572472	0.83298485	1.716131
04/10/2148	0.096843	1.43416493	0.41917507	79.382760	116.729770	13.564006	0.83299875	1.717510
04/18/2177	325.002511	1.43368972	0.41927228	79.664144	116.479587	13.565053	0.83258336	1.716656

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