Asteroid General Data

2022 ST₂₁

General information

Preliminary designation	2022 ST₂₁
Group	Apollo
Absolute magnitude	24.55
Approximate diameter (m)	33
Approximate mass (kg)	6.40·10⁷
Number of observations	27
Arc length (days)	2

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	326.030291
a – orbit major semiaxis (astronomical units)	1.19265900
e – orbit eccentricity	0.22882100
ω – orbit ascending node-perihelion angle (degrees)	258.952188
Ω – longitude of orbit ascending node (degrees)	183.283846
i – orbit inclination to the ecliptic plane (degrees)	23.194727

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	47.984979	1.19268347	0.22828630	257.934675	184.167712	23.180292	0.92041017	1.302532
01/21/1858	148.719783	1.19248067	0.22821581	258.131338	184.037083	23.181400	0.92033773	1.302200
01/29/1887	250.676921	1.19263730	0.22839497	258.203708	183.908752	23.182195	0.92024494	1.302456
02/07/1916	351.713761	1.19237822	0.22833450	258.408842	183.776941	23.181738	0.92011714	1.302032
02/14/1945	93.856899	1.19264713	0.22846668	258.513782	183.648843	23.182858	0.92016700	1.302473
02/22/1974	195.693344	1.19232181	0.22858195	258.717754	183.515941	23.180618	0.91977856	1.301940
03/02/2003	298.092853	1.19258506	0.22862517	258.803051	183.388220	23.182261	0.91993010	1.302371
03/09/2032	40.553455	1.19234844	0.22878810	258.999642	183.260143	23.180345	0.91955330	1.301983
03/17/2061	143.308436	1.19255649	0.22879042	259.072171	183.133100	23.181703	0.91971100	1.302324
03/25/2090	246.118953	1.19230596	0.22888465	259.279485	183.005887	23.181844	0.91940542	1.301914
04/03/2119	348.937472	1.19275977	0.22902633	259.352462	182.870121	23.183381	0.91958638	1.302657
04/10/2148	91.647522	1.19255663	0.22905527	259.513091	182.744078	23.181728	0.91939525	1.302324
04/18/2177	193.984172	1.19275804	0.22910170	259.632689	182.609941	23.184492	0.91949515	1.302654

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