Asteroid General Data

2021 OS₁

General information

Preliminary designation	2021 OS₁
Group	Apollo
Absolute magnitude	24.82
Approximate diameter (m)	29
Approximate mass (kg)	4.40·10⁷
Number of observations	47
Arc length (days)	35

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	348.409167
a – orbit major semiaxis (astronomical units)	1.87084600
e – orbit eccentricity	0.45669300
ω – orbit ascending node-perihelion angle (degrees)	27.479839
Ω – longitude of orbit ascending node (degrees)	319.075470
i – orbit inclination to the ecliptic plane (degrees)	5.136122

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	302.816833	1.87218515	0.45602587	23.699206	321.543424	5.310006	1.01842030	2.561674
01/21/1858	57.563869	1.87289561	0.45638805	24.294628	321.136923	5.282791	1.01812843	2.563132
01/29/1887	172.408945	1.87339972	0.45703387	24.762764	320.850912	5.265404	1.01719260	2.564167
02/07/1916	290.226763	1.87135220	0.45615190	25.453942	320.443969	5.224298	1.01773134	2.559964
02/14/1945	49.892577	1.87107724	0.45688266	25.901057	320.145290	5.209872	1.01621449	2.559400
02/22/1974	167.780869	1.87369268	0.45687413	26.566976	319.665950	5.167370	1.01765097	2.564768
03/02/2003	283.003060	1.87248902	0.45740345	26.975916	319.389228	5.154348	1.01600608	2.562297
03/09/2032	38.418629	1.87108980	0.45641016	27.670476	318.982114	5.127160	1.01710541	2.559426
03/17/2061	157.830258	1.87202807	0.45724237	28.153944	318.639890	5.111326	1.01605753	2.561351
03/25/2090	275.584476	1.87390133	0.45753223	28.841657	318.168224	5.075186	1.01653108	2.565197
04/03/2119	29.506909	1.87324680	0.45741439	29.304614	317.865110	5.060491	1.01639676	2.563853
04/10/2148	143.531065	1.87203978	0.45780564	30.026166	317.421978	5.014188	1.01500940	2.561375
04/18/2177	260.368093	1.87300444	0.45750970	30.489543	317.078581	4.996478	1.01608674	2.563355

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