2018 PH9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4555915071 ± 2.83e-05
Semi-major axis (a)2.0525529638 AU ± 1.21e-04
Inclination (i)3.36335725° ± 1.55e-04
Long. of Asc. Node (Ω)320.45170504° ± 1.59e-04
Arg. of Perihelion (ω)357.58476633° ± 1.08e-04
Mean Anomaly (M)170.01272879° ± 7.92e-02
Mean Motion (n)0.3351743050°/day ± 2.97e-05
Perihelion dist (q)1.11742727 AU ± 8.79e-05
Aphelion dist (Q)2.98767866 AU ± 1.86e-04
Orbital Period2.94063796 yr ± 2.61e-04
Physical Parameters
H (abs. magnitude)23.99
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.235″
Uncertainty2
Orbit TypeAmor
MOID0.102019 AU
Observations Used58
Oppositions1
Arc Total2018-2018
First Observation Used2018-08-07
Last Observation Used2018-09-30
Observations (59)
Date Type RA Dec Mag Band Observatory
2018-09-07 06:03:10 C 21 47 06.18 -03 13 25.9 V I52
2018-09-07 06:08:40 C 21 47 06.92 -03 13 18.1 V I52
2018-09-17 06:45:47 C 22 19 11.87 +01 26 58.7 V V06
2018-09-17 06:48:42 C 22 19 12.17 +01 27 01.3 V V06
2018-09-17 06:51:34 C 22 19 12.46 +01 27 03.7 V V06
2018-09-17 06:54:26 C 22 19 12.77 +01 27 06.6 V V06
2018-09-30 06:10:37 C 22 50 18.93 +04 53 48.9 o 695
2018-09-30 06:20:51 C 22 50 19.74 +04 53 53.9 o 695
2018-09-30 06:31:04 C 22 50 20.53 +04 53 58.1 o 695