457912 (2009 UW18)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4391831542 ± 3.00e-08
Semi-major axis (a)1.2792879417 AU ± 1.16e-09
Inclination (i)16.98590418° ± 7.06e-06
Long. of Asc. Node (Ω)227.18911314° ± 5.41e-06
Arg. of Perihelion (ω)59.84682004° ± 9.06e-06
Mean Anomaly (M)104.83335581° ± 7.05e-06
Mean Motion (n)0.6811767508°/day ± 9.29e-10
Perihelion dist (q)0.71744623 AU ± 3.84e-08
Aphelion dist (Q)1.84112966 AU ± 3.85e-08
Orbital Period1.44694645 yr ± 1.97e-09
Physical Parameters
H (abs. magnitude)19.62
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.311″
Uncertainty0
Orbit TypeApollo
MOID0.106356 AU
Observations Used299
Oppositions6
Arc Total2006-2025
First Observation Used2006-11-19
Last Observation Used2025-12-17
Observations (307)
Date Type RA Dec Mag Band Observatory
2025-12-12 08:35:02 C 05 03 38.110 +01 49 40.66 V G96
2025-12-12 08:42:25 C 05 03 37.397 +01 49 37.63 V G96
2025-12-12 08:49:51 C 05 03 36.695 +01 49 33.89 V G96
2025-12-17 09:44:35 C 04 53 02.116 +01 05 53.56 X F51
2025-12-17 10:01:41 C 04 53 00.652 +01 05 48.33 X F51
2025-12-17 10:18:43 C 04 52 59.172 +01 05 42.91 X F51
2025-12-17 10:35:44 C 04 52 57.706 +01 05 37.82 X F51