Asteroid General Data

2005 YW₅₅ (172974)

General information

Preliminary designation	2005 YW₅₅
Number	172974
Group	Amor
Absolute magnitude	19.40
Approximate diameter (m)	350
Approximate mass (kg)	7.87·10¹⁰
Number of observations	226
Arc length (days)	8419

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	304.005117
a – orbit major semiaxis (astronomical units)	1.63687400
e – orbit eccentricity	0.24657400
ω – orbit ascending node-perihelion angle (degrees)	256.770942
Ω – longitude of orbit ascending node (degrees)	239.345156
i – orbit inclination to the ecliptic plane (degrees)	8.473140

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	164.536679	1.63669607	0.24660423	254.269260	240.969534	8.466993	1.23307989	2.093884
01/21/1858	112.947575	1.63694806	0.24648315	254.701113	240.713536	8.466526	1.23346794	2.094368
01/29/1887	61.957843	1.63684332	0.24654473	255.057698	240.490944	8.467043	1.23328823	2.094167
02/07/1916	10.836310	1.63675284	0.24649546	255.476558	240.234643	8.466466	1.23330069	2.093993
02/14/1945	320.120912	1.63673280	0.24654565	255.792433	240.012766	8.468484	1.23320344	2.093955
02/22/1974	269.140117	1.63687583	0.24666404	256.178180	239.759737	8.470943	1.23311743	2.094229
03/02/2003	217.110780	1.63706203	0.24653595	256.460786	239.540524	8.472089	1.23346738	2.094587
03/09/2032	165.130244	1.63721862	0.24658203	256.846875	239.306000	8.472324	1.23350994	2.094887
03/17/2061	112.915412	1.63710607	0.24642458	257.213270	239.061435	8.474117	1.23368289	2.094671
03/25/2090	58.922128	1.63755184	0.24643018	257.485564	238.837085	8.479813	1.23400964	2.095527
04/03/2119	5.078405	1.63736608	0.24635760	257.883920	238.571572	8.481829	1.23398850	2.095170
04/10/2148	311.494949	1.63726161	0.24632670	258.250441	238.349882	8.483039	1.23396036	2.094970
04/18/2177	258.131787	1.63749205	0.24638460	258.618495	238.095135	8.482635	1.23403923	2.095412

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