Asteroid General Data

2025 SD₄

General information

Preliminary designation	2025 SD₄
Group	Apollo
Absolute magnitude	25.93
Approximate diameter (m)	17
Approximate mass (kg)	9.50·10⁶
Number of observations	43
Arc length (days)	6

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	172.711725
a – orbit major semiaxis (astronomical units)	1.43743600
e – orbit eccentricity	0.54845400
ω – orbit ascending node-perihelion angle (degrees)	271.651246
Ω – longitude of orbit ascending node (degrees)	182.359844
i – orbit inclination to the ecliptic plane (degrees)	21.104368

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	12.150647	1.44015535	0.54767839	269.147813	184.526807	21.186904	0.65141338	1.728282
01/21/1858	288.542489	1.44223400	0.54797791	269.556016	184.181449	21.189303	0.65192163	1.732025
01/29/1887	202.782965	1.44204300	0.54790908	269.847335	183.891889	21.193083	0.65193455	1.731681
02/07/1916	123.338016	1.43835730	0.54806486	270.462839	183.545613	21.126630	0.65004421	1.725046
02/14/1945	61.160320	1.43801611	0.54806484	270.784983	183.256325	21.128518	0.64989004	1.724433
02/22/1974	0.999432	1.43743370	0.54796832	271.061897	182.906701	21.134072	0.64976556	1.723385
03/02/2003	302.836430	1.43794174	0.54814835	271.358835	182.615010	21.138444	0.64973634	1.724299
03/09/2032	236.558734	1.43730236	0.54847701	271.720600	182.281916	21.102954	0.64897506	1.723149
03/17/2061	180.278604	1.43744179	0.54848448	271.997585	181.991004	21.107635	0.64902728	1.723400
03/25/2090	126.107472	1.43695771	0.54831505	272.252859	181.706473	21.110249	0.64905217	1.722529
04/03/2119	74.737336	1.43712295	0.54836674	272.528505	181.379516	21.113323	0.64905252	1.722826
04/10/2148	20.139778	1.43697110	0.54823912	272.806519	181.099126	21.120297	0.64916734	1.722553
04/18/2177	324.422047	1.43695251	0.54822394	273.113021	180.759638	21.125932	0.64918075	1.722520

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