2009 ST171

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6082586000
Semi-major axis (a)2.5790278000 AU
Inclination (i)3.74287000°
Long. of Asc. Node (Ω)186.50457000°
Arg. of Perihelion (ω)206.02092000°
Mean Anomaly (M)318.34731000°
Mean Motion (n)0.2379688100°/day
Perihelion dist (q)1.01031200 AU
Aphelion dist (Q)4.14774360 AU
Orbital Period4.14175150 yr
Physical Parameters
H (abs. magnitude)26.80
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.200″
Uncertainty7
Orbit TypeAmor
MOID0.025197 AU
Observations Used19
Oppositions1
Arc Total
First Observation Used
Last Observation Used2009-09-29
Observations (48)
Date Type RA Dec Mag Band Observatory
2009-09-28 05:44:36 C 00 12 27.46 +03 24 42.3 r G96
2009-09-28 05:55:25 C 00 12 33.94 +03 24 48.9 r G96
2009-09-28 06:06:08 C 00 12 40.39 +03 24 56.2 r G96
2009-09-28 06:16:58 C 00 12 46.87 +03 25 03.2 r G96
2009-09-28 06:29:55 C 00 12 54.61 +03 25 11.5 r G96
2009-09-28 06:30:50 C 00 12 55.18 +03 25 12.2 r G96
2009-09-28 06:31:45 C 00 12 55.72 +03 25 12.7 r G96
2009-09-28 06:32:38 C 00 12 56.23 +03 25 13.8 r G96
2009-09-28 09:00:07 C 00 14 25.39 +03 26 47.1 r G96
2009-09-28 09:01:02 C 00 14 25.97 +03 26 48.0 r G96
2009-09-28 09:01:54 C 00 14 26.46 +03 26 48.6 r G96
2009-09-29 06:16:48 C 00 29 05.82 +03 40 56.1 r G96
2009-09-29 06:17:47 C 00 29 06.50 +03 40 57.0 r G96
2009-09-29 06:18:46 C 00 29 07.18 +03 40 57.6 r G96
2009-09-29 06:19:47 C 00 29 07.87 +03 40 58.5 r G96
2009-09-29 09:28:54 C 00 31 18.33 +03 43 06.2 r G96
2009-09-29 09:29:55 C 00 31 19.05 +03 43 06.8 r G96
2009-09-29 09:30:55 C 00 31 19.74 +03 43 07.4 r G96
2009-09-29 09:31:57 C 00 31 20.49 +03 43 08.0 r G96
2009-09-19 07:00:03 C 23 41 00.06 -08 20 16.8 r G96
2009-09-19 07:14:49 C 23 40 59.55 -08 20 21.6 r G96
2009-09-19 07:29:28 C 23 40 59.08 -08 20 23.4 r G96
2009-09-19 07:44:01 C 23 40 58.62 -08 20 29.1 r G96
2009-09-25 07:06:25 C 23 36 35.31 -08 56 44.8 r G96
2009-09-25 07:18:38 C 23 36 34.95 -08 56 47.9 r G96
2009-09-25 07:30:50 C 23 36 34.56 -08 56 50.8 r G96
2009-09-25 07:43:02 C 23 36 34.20 -08 56 53.9 r G96
2020-07-26 08:11:44 C 20 39 29.14 -18 52 07.6 V G96
2020-07-26 08:18:34 C 20 39 28.80 -18 52 09.4 V G96
2020-07-26 08:25:22 C 20 39 28.54 -18 52 11.1 V G96
2024-09-10 10:06:12 C 01 17 13.662 +01 46 51.36 X F52
2024-09-10 10:24:12 C 01 17 13.405 +01 46 47.55 X F52
2024-09-10 10:42:12 C 01 17 13.147 +01 46 43.56 X F52
2024-09-10 11:00:12 C 01 17 12.890 +01 46 39.45 X F52
2024-09-28 11:31:22 C 01 07 26.267 -00 01 38.88 X F52
2024-09-28 11:48:42 C 01 07 25.698 -00 01 43.22 X F52
2024-09-28 12:06:02 C 01 07 25.093 -00 01 48.30 X F52
2024-09-28 12:23:21 C 01 07 24.535 -00 01 52.40 X F52
2024-10-06 06:06:06 C 01 01 21.558 -00 49 41.52 V G96
2024-10-06 06:13:36 C 01 01 21.281 -00 49 43.82 V G96
2024-10-06 06:21:06 C 01 01 21.004 -00 49 45.84 V G96
2024-10-10 09:30:39 C 00 58 01.128 -01 12 48.74 X F52
2024-10-10 09:47:07 C 00 58 00.525 -01 12 52.41 X F52
2024-10-10 10:03:32 C 00 57 59.933 -01 12 56.08 X F52
2024-10-10 10:19:56 C 00 57 59.345 -01 12 59.64 X F52
2024-10-23 08:07:31 C 00 48 35.903 -02 05 22.82 X F52
2024-10-23 08:22:56 C 00 48 35.485 -02 05 24.72 X F52
2024-10-23 08:53:52 C 00 48 34.593 -02 05 28.37 X F52