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
2010-01-06 06:35:54 C 09 05 59.07 -01 40 00.7 o 291
2010-01-06 06:43:43 C 09 05 58.84 -01 40 00.5 o 291
2010-01-06 06:51:31 C 09 05 58.60 -01 40 01.4 o 291
2011-10-21 08:04:42 C 03 12 22.84 +09 28 37.4 o H21
2011-10-21 08:24:34 C 03 12 22.05 +09 28 31.4 o H21
2014-08-28 10:47:28 C 01 14 03.781 +13 17 54.44 L F51
2014-08-28 11:22:50 C 01 14 03.008 +13 17 42.63 L F51
2014-08-28 11:40:22 C 01 14 02.625 +13 17 36.93 L F51
2014-09-01 09:13:35 C 01 11 54.46 +12 43 48.4 q 703
2014-09-01 09:29:31 C 01 11 54.00 +12 43 42.2 q 703
2014-09-01 09:37:30 C 01 11 53.73 +12 43 40.0 q 703
2014-10-01 05:44:38 C 00 43 54.21 +06 39 48.6 q G96
2014-10-01 05:51:54 C 00 43 53.89 +06 39 45.1 q G96
2014-10-01 05:59:10 C 00 43 53.55 +06 39 40.9 q G96
2014-10-01 06:06:27 C 00 43 53.19 +06 39 36.8 q G96
2014-10-25 04:47:42 C 00 22 20.37 +01 52 59.1 q G96
2014-10-25 04:56:28 C 00 22 20.12 +01 52 55.8 q G96
2014-10-25 05:05:15 C 00 22 19.87 +01 52 52.4 q G96
2014-10-25 05:14:01 C 00 22 19.62 +01 52 48.9 q G96
2017-01-30 13:02:42 C 11 57 04.436 -12 38 18.42 L F51
2017-01-30 13:19:26 C 11 57 04.769 -12 38 21.01 L F51
2017-01-30 13:36:10 C 11 57 05.090 -12 38 23.79 L F51
2017-01-30 13:52:54 C 11 57 05.426 -12 38 26.47 L F51
2017-02-04 13:40:43 C 11 59 23.610 -12 54 22.15 L F51
2017-02-04 13:57:47 C 11 59 23.850 -12 54 23.97 L F51
2017-02-04 14:14:47 C 11 59 24.099 -12 54 25.70 L F51
2017-02-04 14:31:49 C 11 59 24.344 -12 54 27.42 L F51
2017-02-22 11:40:09 C 12 02 03.933 -12 42 38.24 L F51
2017-02-22 11:57:56 C 12 02 03.792 -12 42 34.98 L F51
2017-02-22 12:15:40 C 12 02 03.651 -12 42 31.80 L F51
2017-02-22 12:33:27 C 12 02 03.512 -12 42 28.57 L F51
2017-03-02 06:14:51 C 12 00 11.67 -11 53 28.5 R G45
2017-03-02 06:21:51 C 12 00 11.55 -11 53 26.2 R G45
2017-03-02 06:28:57 C 12 00 11.42 -11 53 23.6 R G45
2017-03-19 08:12:33 C 11 50 21.72 -08 06 43.2 q G96
2017-03-19 08:18:40 C 11 50 21.49 -08 06 38.6 q G96
2017-03-19 08:23:51 C 11 50 21.34 -08 06 34.7 q 703
2017-03-19 08:24:45 C 11 50 21.29 -08 06 33.9 q G96
2017-03-19 08:30:52 C 11 50 21.07 -08 06 29.3 q G96
2017-03-19 08:31:06 C 11 50 21.07 -08 06 29.2 q 703
2017-03-19 08:38:20 C 11 50 20.84 -08 06 23.7 q 703
2017-03-19 08:45:34 C 11 50 20.53 -08 06 18.0 q 703
2017-03-19 10:24:28 C 11 50 17.22 -08 05 02.6 q G96
2017-03-19 10:34:07 C 11 50 16.90 -08 04 55.2 q G96
2017-03-19 10:44:24 C 11 50 16.57 -08 04 47.4 q G96
2017-03-19 10:53:50 C 11 50 16.26 -08 04 40.1 q G96
2017-03-24 07:01:40 C 11 46 34.67 -06 30 21.6 q 703
2017-03-24 07:10:00 C 11 46 34.39 -06 30 14.5 q 703
2017-03-24 07:18:20 C 11 46 34.05 -06 30 07.5 q 703
2017-03-24 07:26:39 C 11 46 33.77 -06 30 00.0 q 703