2018 WH2

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4300034814 ± 8.95e-08
Semi-major axis (a)1.8348073380 AU ± 4.17e-09
Inclination (i)15.95959423° ± 9.41e-06
Long. of Asc. Node (Ω)249.23606311° ± 2.45e-06
Arg. of Perihelion (ω)150.88162796° ± 3.95e-05
Mean Anomaly (M)300.50151831° ± 1.38e-05
Mean Motion (n)0.3965761330°/day ± 1.35e-09
Perihelion dist (q)1.04583379 AU ± 1.64e-07
Aphelion dist (Q)2.62378088 AU ± 1.64e-07
Orbital Period2.48533939 yr ± 8.47e-09
Physical Parameters
H (abs. magnitude)22.95
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.255″
Uncertainty0
Orbit TypeAmor
MOID0.088215 AU
Observations Used146
Oppositions6
Arc Total2013-2023
First Observation Used2013-12-20
Last Observation Used2023-12-12
Observations (155)
Date Type RA Dec Mag Band Observatory
2023-11-17 14:28:02 C 08 40 00.198 +23 53 42.67 V T12
2023-11-17 14:29:51 C 08 40 00.146 +23 53 35.96 V T12
2023-12-12 13:17:27 C 08 14 44.710 -05 25 34.96 X F51
2023-12-12 13:53:43 C 08 14 41.980 -05 26 47.81 X F51
2023-12-12 14:10:30 C 08 14 40.706 -05 27 21.86 X F51