Asteroid General Data

2021 SF₄

General information

Preliminary designation	2021 SF₄
Group	Amor
Absolute magnitude	24.41
Approximate diameter (m)	35
Approximate mass (kg)	7.76·10⁷
Number of observations	49
Arc length (days)	2183

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	74.862315
a – orbit major semiaxis (astronomical units)	1.30874000
e – orbit eccentricity	0.21611500
ω – orbit ascending node-perihelion angle (degrees)	225.779230
Ω – longitude of orbit ascending node (degrees)	199.915583
i – orbit inclination to the ecliptic plane (degrees)	12.296107

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	323.726340	1.30599476	0.21332692	223.166133	201.315432	12.350518	1.02739092	1.492495
01/21/1858	123.270230	1.30614951	0.21333559	223.303146	201.182499	12.348909	1.02750133	1.492760
01/29/1887	277.939867	1.30790053	0.21441579	223.525024	201.008290	12.347269	1.02746601	1.495763
02/07/1916	57.865803	1.30694600	0.21445468	224.553946	200.626645	12.320059	1.02666531	1.494125
02/14/1945	214.835163	1.30604465	0.21401476	224.740909	200.495546	12.322318	1.02653181	1.492580
02/22/1974	14.412805	1.30606284	0.21398755	224.913125	200.363663	12.320616	1.02658165	1.492611
03/02/2003	171.402066	1.30690239	0.21457179	225.072924	200.221560	12.318896	1.02647801	1.494051
03/09/2032	312.281628	1.30761679	0.21560711	226.033967	199.848394	12.292307	1.02568531	1.495276
03/17/2061	107.066855	1.30613898	0.21483611	226.270053	199.693651	12.295361	1.02553316	1.492742
03/25/2090	266.691548	1.30596129	0.21485293	226.431227	199.571361	12.294979	1.02537169	1.492437
04/03/2119	64.832657	1.30662354	0.21517403	226.568735	199.426291	12.294012	1.02547208	1.493573
04/10/2148	208.304274	1.30887662	0.21687825	227.266572	199.107887	12.271565	1.02500976	1.497437
04/18/2177	359.449979	1.30623603	0.21547857	227.773099	198.885093	12.270566	1.02477015	1.492908

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