2018 UM1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1737615782 ± 7.77e-08
Semi-major axis (a)1.1434794810 AU ± 5.05e-09
Inclination (i)1.99517201° ± 2.87e-06
Long. of Asc. Node (Ω)260.56422851° ± 8.28e-05
Arg. of Perihelion (ω)54.34621973° ± 8.45e-05
Mean Anomaly (M)338.30037866° ± 1.61e-05
Mean Motion (n)0.8060643471°/day ± 5.34e-09
Perihelion dist (q)0.94478668 AU ± 8.90e-08
Aphelion dist (Q)1.34217228 AU ± 8.91e-08
Orbital Period1.22276377 yr ± 8.10e-09
Physical Parameters
H (abs. magnitude)23.64
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.282″
Uncertainty0
Orbit TypeApollo
MOID0.002337 AU
Observations Used201
Oppositions2
Arc Total2013-2024
First Observation Used2013-01-17
Last Observation Used2024-01-10
Observations (201)
Date Type RA Dec Mag Band Observatory
2024-01-10 10:00:38 C 08 19 54.62 +15 22 16.2 V 291