2019 ST9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6066819287 ± 3.92e-08
Semi-major axis (a)1.6670763212 AU ± 2.43e-08
Inclination (i)29.84386918° ± 1.97e-05
Long. of Asc. Node (Ω)190.85618409° ± 6.22e-06
Arg. of Perihelion (ω)295.70417790° ± 9.29e-06
Mean Anomaly (M)259.31781033° ± 1.45e-05
Mean Motion (n)0.4579088654°/day ± 1.00e-08
Perihelion dist (q)0.65569124 AU ± 6.61e-08
Aphelion dist (Q)2.67846140 AU ± 7.62e-08
Orbital Period2.15245076 yr ± 4.71e-08
Physical Parameters
H (abs. magnitude)20.61
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.205″
Uncertainty0
Orbit TypeApollo
MOID0.127171 AU
Observations Used74
Oppositions2
Arc Total2019-2022
First Observation Used2019-09-04
Last Observation Used2022-04-23
Observations (102)
Date Type RA Dec Mag Band Observatory
2022-05-14 06:37:18 S 13 14 17.234 +54 08 07.08 L C51
2022-05-14 06:37:29 S 13 14 17.474 +54 08 04.63 L C51