353190 (2009 ST)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3689606097 ± 4.50e-08
Semi-major axis (a)1.9558825479 AU ± 4.49e-09
Inclination (i)10.89710773° ± 1.19e-05
Long. of Asc. Node (Ω)189.12819249° ± 2.58e-05
Arg. of Perihelion (ω)270.08045509° ± 3.66e-05
Mean Anomaly (M)266.40720954° ± 2.29e-05
Mean Motion (n)0.3603280893°/day ± 1.24e-09
Perihelion dist (q)1.23423893 AU ± 8.81e-08
Aphelion dist (Q)2.67752617 AU ± 8.82e-08
Orbital Period2.73535789 yr ± 9.41e-09
Physical Parameters
H (abs. magnitude)19.84
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.355″
Uncertainty0
Orbit TypeAmor
MOID0.326322 AU
Observations Used121
Oppositions16
Arc Total1998-2024
First Observation Used1998-09-19
Last Observation Used2024-04-07
Observations (125)
Date Type RA Dec Mag Band Observatory
2020-10-14 08:05:29 C 00 12 27.820 -00 59 41.53 U F52
2020-10-14 08:23:09 C 00 12 27.063 -00 59 56.42 U F52
2020-10-17 05:10:49 C 00 09 49.87 -01 58 09.1 V G96
2020-10-17 05:18:21 C 00 09 49.55 -01 58 15.3 V G96
2020-10-17 05:25:55 C 00 09 49.28 -01 58 22.8 V G96
2020-10-17 05:33:26 C 00 09 48.96 -01 58 28.0 V G96
2020-11-16 06:04:35 C 00 00 35.915 -09 17 42.49 U F51
2020-11-16 06:21:24 C 00 00 36.123 -09 17 47.87 U F51
2020-11-16 06:38:13 C 00 00 36.352 -09 17 53.24 U F51
2020-11-16 06:55:02 C 00 00 36.566 -09 17 58.58 U F51
2024-02-20 14:45:10 C 13 12 57.994 -15 23 20.23 X F51
2024-02-20 14:59:11 C 13 12 57.992 -15 23 13.90 X F51
2024-02-20 15:13:10 C 13 12 57.982 -15 23 07.60 X F51
2024-03-19 11:24:22 C 12 57 28.017 -07 45 34.12 X F52
2024-03-19 11:40:25 C 12 57 27.291 -07 45 20.60 X F52
2024-03-19 11:56:29 C 12 57 26.560 -07 45 07.08 X F52
2024-03-19 12:12:34 C 12 57 25.843 -07 44 53.58 X F52
2024-04-02 09:44:11 C 12 43 11.266 -03 10 06.13 X F52
2024-04-02 09:59:20 C 12 43 10.632 -03 09 54.54 X F52
2024-04-02 10:14:27 C 12 43 09.972 -03 09 42.93 X F52
2024-04-02 10:29:37 C 12 43 09.299 -03 09 31.14 X F52
2024-04-07 06:48:06 C 12 38 35.473 -01 43 20.14 V G96
2024-04-07 06:55:27 C 12 38 35.164 -01 43 15.38 V G96
2024-04-07 07:02:47 C 12 38 34.854 -01 43 09.91 V G96
2024-04-07 07:10:07 C 12 38 34.613 -01 43 04.84 V G96