Asteroid General Data

2018 UD₁

General information

Preliminary designation	2018 UD₁
Group	Apollo
Absolute magnitude	22.69
Approximate diameter (m)	77
Approximate mass (kg)	8.35·10⁸
Number of observations	37
Arc length (days)	142

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	44.400780
a – orbit major semiaxis (astronomical units)	2.36870400
e – orbit eccentricity	0.59989300
ω – orbit ascending node-perihelion angle (degrees)	309.196979
Ω – longitude of orbit ascending node (degrees)	150.914457
i – orbit inclination to the ecliptic plane (degrees)	4.348184

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	115.002768	2.45846028	0.61206771	294.443679	163.364040	3.920481	0.95371612	3.854743
01/21/1858	329.419358	2.43627468	0.62270203	296.421984	161.670938	3.981582	0.91920149	3.802682
01/29/1887	196.233550	2.43656998	0.62191731	296.708571	161.179847	3.999495	0.92122494	3.803373
02/07/1916	44.512895	2.46052193	0.60767111	299.551844	158.744564	4.084251	0.96533385	3.859593
02/14/1945	229.236732	2.45385060	0.60881640	305.222929	154.389978	4.285761	0.95990610	3.843906
02/22/1974	86.496523	2.43341330	0.61954208	307.220502	152.676535	4.381255	0.92581137	3.795984
03/02/2003	311.455056	2.44108703	0.61993557	307.460413	152.341200	4.404410	0.92777035	3.813955
03/09/2032	158.483608	2.46019914	0.61013183	308.934390	151.118619	4.446504	0.95915334	3.858833
03/17/2061	333.446689	2.46038386	0.60327048	314.510298	146.974106	4.739162	0.97610691	3.859268
03/25/2090	174.146358	2.44248763	0.61410017	316.949535	145.103235	4.880366	0.94255555	3.817237
04/03/2119	39.456950	2.43887004	0.61720386	317.343748	144.602132	4.954896	0.93359004	3.808760
04/10/2148	255.544221	2.44834594	0.61170689	317.612562	144.278788	4.968827	0.95067586	3.830979
04/18/2177	75.172489	2.46948678	0.59719580	321.693768	141.489679	5.215887	0.99471965	3.880705

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