405427 (2004 ST9)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4373151600 ± 2.46e-08
Semi-major axis (a)2.2468091208 AU ± 6.13e-09
Inclination (i)12.22523566° ± 2.68e-06
Long. of Asc. Node (Ω)194.98549153° ± 1.23e-05
Arg. of Perihelion (ω)60.08246168° ± 1.80e-05
Mean Anomaly (M)175.81061891° ± 1.08e-05
Mean Motion (n)0.2926597578°/day ± 1.20e-09
Perihelion dist (q)1.26424543 AU ± 5.53e-08
Aphelion dist (Q)3.22937281 AU ± 5.59e-08
Orbital Period3.36782307 yr ± 1.38e-08
Physical Parameters
H (abs. magnitude)18.09
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.323″
Uncertainty0
Orbit TypeAmor
MOID0.315128 AU
Observations Used446
Oppositions14
Arc Total2004-2024
First Observation Used2004-09-17
Last Observation Used2024-12-04
Observations (475)
Date Type RA Dec Mag Band Observatory
2007-05-24 07:45:27 C 18 33 02.14 +15 03 53.2 17.9 c 704
2007-05-24 07:57:22 C 18 33 02.89 +15 04 08.4 18.0 c 704
2007-05-24 08:09:19 C 18 33 03.64 +15 04 24.0 18.0 c 704
2007-05-24 08:21:12 C 18 33 04.44 +15 04 38.8 18.0 c 704
2007-05-24 08:33:08 C 18 33 05.18 +15 04 54.0 17.8 c 704
2007-06-02 00:02:27 C 18 46 07.11 +18 58 55.7 r 941
2007-06-02 00:04:06 C 18 46 07.18 +18 58 57.3 r 941
2007-06-02 00:05:44 C 18 46 07.30 +18 58 59.0 r 941
2007-06-02 00:17:15 C 18 46 07.85 +18 59 10.3 r 941
2007-06-07 07:31:06 C 18 52 34.54 +20 51 04.3 17.7 c 704
2007-06-07 07:45:16 C 18 52 35.06 +20 51 15.6 17.8 c 704
2007-06-07 07:59:26 C 18 52 35.67 +20 51 26.2 17.7 c 704
2007-06-07 08:13:36 C 18 52 36.24 +20 51 37.1 17.6 c 704
2007-06-07 08:27:44 C 18 52 36.79 +20 51 48.9 17.7 c 704
2007-06-14 09:12:54 C 18 59 22.06 +22 38 34.6 r H45
2007-06-14 09:17:36 C 18 59 22.18 +22 38 37.0 r H45
2007-06-14 09:18:50 C 18 59 22.23 +22 38 37.3 r H45
2007-06-14 09:19:55 C 18 59 22.27 +22 38 37.8 r H45
2007-06-14 09:21:41 C 18 59 22.31 +22 38 38.6 r H45
2007-06-16 00:41:36 C 19 00 41.93 +22 56 15.8 c B19
2007-06-16 00:50:02 C 19 00 41.71 +22 56 26.7 c B19
2007-06-24 22:26:46 C 19 06 18.64 +23 45 28.3 c A24
2007-06-24 22:37:55 C 19 06 18.84 +23 45 29.0 c A24
2007-06-24 22:58:58 C 19 06 19.22 +23 45 30.2 c A24
2007-06-24 23:00:11 C 19 06 19.24 +23 45 30.4 c A24
2007-06-24 23:01:38 C 19 06 19.28 +23 45 30.5 c A24
2007-06-24 23:16:12 C 19 06 19.52 +23 45 31.3 c A24
2007-07-04 08:50:03 C 19 10 13.32 +23 12 48.4 r H45
2007-07-04 08:51:41 C 19 10 13.33 +23 12 47.9 r H45
2007-07-04 08:54:06 C 19 10 13.37 +23 12 46.7 r H45
2007-07-04 09:03:21 C 19 10 13.46 +23 12 43.9 r H45
2007-07-04 09:07:12 C 19 10 13.49 +23 12 42.2 r H45
2007-07-04 23:25:11 C 19 10 26.50 +23 07 49.9 c A24
2007-07-04 23:31:28 C 19 10 26.56 +23 07 46.8 c A24
2007-07-04 23:48:52 C 19 10 26.70 +23 07 40.8 c A24
2007-07-05 00:06:40 C 19 10 26.81 +23 07 34.0 c A24
2007-07-05 00:25:57 C 19 10 27.06 +23 07 28.0 c A24
2007-07-05 00:39:51 C 19 10 27.17 +23 07 23.1 c A24
2007-07-05 00:41:17 C 19 10 27.20 +23 07 22.5 c A24
2007-07-05 00:57:16 C 19 10 27.34 +23 07 16.9 c A24
2007-07-06 22:13:30 C 19 11 04.93 +22 49 47.2 c A24
2007-07-06 22:29:02 C 19 11 05.06 +22 49 40.5 c A24
2007-07-06 22:36:21 C 19 11 05.06 +22 49 38.1 o 160
2007-07-06 22:41:26 C 19 11 05.10 +22 49 36.0 o 160
2007-07-06 22:44:21 C 19 11 05.20 +22 49 34.0 c A24
2007-07-06 22:45:50 C 19 11 05.20 +22 49 33.2 c A24
2007-07-06 22:47:21 C 19 11 05.15 +22 49 33.4 o 160
2007-07-06 23:00:18 C 19 11 05.33 +22 49 27.0 c A24
2007-07-06 23:12:14 C 19 11 05.44 +22 49 21.8 c A24
2007-07-07 22:58:27 C 19 11 24.02 +22 38 54.5 c A24