2018 HR3

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5343330240 ± 2.78e-08
Semi-major axis (a)2.6985800897 AU ± 2.11e-08
Inclination (i)18.89599522° ± 1.53e-05
Long. of Asc. Node (Ω)43.74849203° ± 1.27e-05
Arg. of Perihelion (ω)71.06390992° ± 3.50e-05
Mean Anomaly (M)296.11495076° ± 2.55e-05
Mean Motion (n)0.2223357545°/day ± 2.61e-09
Perihelion dist (q)1.25663963 AU ± 7.55e-08
Aphelion dist (Q)4.14052055 AU ± 8.16e-08
Orbital Period4.43305345 yr ± 5.21e-08
Physical Parameters
H (abs. magnitude)19.04
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.172″
Uncertainty0
Orbit TypeAmor
MOID0.411627 AU
Observations Used95
Oppositions10
Arc Total2009-2022
First Observation Used2009-04-29
Last Observation Used2022-01-21
Observations (101)
Date Type RA Dec Mag Band Observatory
2022-01-21 06:22:32 C 01 02 40.862 +14 07 44.96 U F52