Asteroid General Data

2021 YB

General information

Preliminary designation	2021 YB
Group	Apollo
Absolute magnitude	27.50
Approximate diameter (m)	8
Approximate mass (kg)	1.09·10⁶
Number of observations	27
Arc length (days)	9

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	151.266767
a – orbit major semiaxis (astronomical units)	1.01795300
e – orbit eccentricity	0.16454800
ω – orbit ascending node-perihelion angle (degrees)	267.901721
Ω – longitude of orbit ascending node (degrees)	270.453483
i – orbit inclination to the ecliptic plane (degrees)	5.214843

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	35.803957	1.03776162	0.17127330	256.494138	274.240052	4.812844	0.86002077	1.057175
01/21/1858	197.507147	1.03696817	0.17124838	256.707683	273.744363	4.822361	0.85938905	1.055963
01/29/1887	39.622566	1.03366040	0.16866199	257.968953	273.142483	5.049182	0.85932118	1.050915
02/07/1916	255.373105	1.03694368	0.16828758	259.292352	272.514961	5.107404	0.86243893	1.055926
02/14/1945	60.602600	1.03845949	0.16838926	259.997107	272.211788	5.111665	0.86359407	1.058242
02/22/1974	224.123449	1.04003418	0.16728103	260.749025	271.455436	5.254075	0.86605619	1.060650
03/02/2003	2.543788	1.03674226	0.16663069	261.933798	271.108135	5.260313	0.86398918	1.055618
03/09/2032	269.878353	1.01827667	0.16467219	267.985482	270.420260	5.213964	0.85059483	1.027541
03/17/2061	357.910974	1.01811318	0.16494746	268.077818	270.143240	5.214623	0.85017800	1.027294
03/25/2090	45.340225	1.02127840	0.16520223	269.327704	269.723691	5.168255	0.85256093	1.032088
04/03/2119	99.618524	1.02050450	0.16524322	269.399599	269.264092	5.165577	0.85187305	1.030915
04/10/2148	136.212952	1.02215329	0.16564643	269.137205	268.811752	5.156638	0.85283725	1.033415
04/18/2177	159.556683	1.02282218	0.16606839	268.839704	268.368575	5.150591	0.85296375	1.034429

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