523816 (2009 ST103)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7185309197 ± 4.67e-08
Semi-major axis (a)2.7004660666 AU ± 2.09e-08
Inclination (i)15.73159466° ± 1.00e-05
Long. of Asc. Node (Ω)226.42728248° ± 3.20e-05
Arg. of Perihelion (ω)234.69427811° ± 3.54e-05
Mean Anomaly (M)215.07466332° ± 1.14e-05
Mean Motion (n)0.2221028797°/day ± 2.58e-09
Perihelion dist (q)0.76009770 AU ± 1.26e-07
Aphelion dist (Q)4.64083443 AU ± 1.31e-07
Orbital Period4.43770150 yr ± 5.16e-08
Physical Parameters
H (abs. magnitude)18.14
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.334″
Uncertainty0
Orbit TypeApollo
MOID0.037827 AU
Observations Used140
Oppositions17
Arc Total2000-2022
First Observation Used2000-09-27
Last Observation Used2022-10-19
Observations (158)
Date Type RA Dec Mag Band Observatory
2022-09-01 07:32:01 C 21 00 29.036 +08 26 58.48 U F52
2022-09-01 07:48:38 C 21 00 28.203 +08 26 52.13 U F52
2022-09-25 06:08:52 C 20 37 20.239 +04 31 42.80 U F51
2022-09-25 06:33:04 C 20 37 19.536 +04 31 32.34 U F51
2022-09-25 06:45:00 C 20 37 19.191 +04 31 27.03 U F51
2022-10-19 06:39:39 C 20 31 18.649 +00 31 43.47 U F51
2022-10-19 07:02:02 C 20 31 18.764 +00 31 35.34 U F51
2022-10-19 07:13:31 C 20 31 18.838 +00 31 31.26 U F51