474163 (1999 SO5)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.0645067428 ± 2.00e+00
Semi-major axis (a)1.0850682702 AU ± 3.00e+00
Inclination (i)13.36941012° ± 4.00e+00
Long. of Asc. Node (Ω)196.00875390° ± 5.00e+00
Arg. of Perihelion (ω)359.87496391° ± 6.00e+00
Mean Anomaly (M)203.32652395° ± 1.17e-05
Mean Motion (n)0.8720204709°/day ± 3.62e+00
Perihelion dist (q)1.01507405 AU ± 3.55e+00
Aphelion dist (Q)1.15506249 AU ± 3.86e+00
Orbital Period1.13027884 yr ± 4.69e+00
NGA Modelr2
A2-5.67459054e-06 AU/d²
Physical Parameters
H (abs. magnitude)20.81
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-27
RMS Residual0.374″
Uncertainty0
Orbit TypeApollo
MOID0.014222 AU
Observations Used341
Oppositions3
Arc Total1999-2025
First Observation Used1999-09-29
Last Observation Used2025-10-06
Observations (358)
Date Type RA Dec Mag Band Observatory
2016-11-03 10:18:39 C 01 39 00.80 -22 01 22.6 L T05
2016-11-03 10:38:00 C 01 39 00.06 -22 01 59.1 L T05
2016-11-08 04:34:19 C 01 35 58.30 -25 08 55.9 V G45
2016-11-08 05:01:07 C 01 35 57.42 -25 09 33.7 V G45
2016-11-08 05:20:07 C 01 35 56.81 -25 10 01.0 V G45
2016-11-08 05:46:34 C 01 35 55.95 -25 10 38.3 V G45
2016-11-15 07:17:20 C 01 33 40.123 -28 19 14.29 L F51
2016-11-15 07:32:35 C 01 33 39.861 -28 19 27.41 L F51
2016-11-15 08:03:00 C 01 33 39.352 -28 19 53.45 L F51
2016-12-22 06:37:05 C 02 00 26.366 -28 44 58.34 L F51
2016-12-22 07:04:54 C 02 00 27.781 -28 44 45.25 L F51
2016-12-22 07:18:46 C 02 00 28.492 -28 44 38.55 L F51
2017-01-09 05:55:51 C 02 29 43.367 -24 28 43.92 L F51
2017-01-09 06:14:23 C 02 29 44.684 -24 28 30.89 L F51
2017-01-09 06:32:53 C 02 29 45.986 -24 28 17.86 L F51
2017-01-18 05:34:49 C 02 46 59.661 -21 48 52.77 L F51
2017-01-18 05:48:44 C 02 47 00.745 -21 48 41.99 L F51
2017-01-18 06:02:42 C 02 47 01.835 -21 48 30.98 L F51
2017-01-18 06:16:40 C 02 47 02.921 -21 48 19.90 L F51
2017-01-30 05:36:06 C 03 12 25.381 -17 49 01.04 L F51
2017-01-30 06:05:47 C 03 12 27.973 -17 48 34.70 L F51
2017-01-30 06:20:37 C 03 12 29.288 -17 48 21.66 L F51
2024-09-04 13:54:30 C 04 52 14.246 +23 30 03.01 X F52
2024-09-04 14:12:30 C 04 52 16.698 +23 29 52.58 X F52
2024-09-04 14:48:35 C 04 52 21.592 +23 29 30.78 X F52
2024-11-01 11:27:30 C 07 41 22.643 -04 51 32.26 V G96
2024-11-01 11:44:10 C 07 41 24.248 -04 52 01.56 V G96
2024-11-01 11:52:30 C 07 41 25.062 -04 52 16.57 V G96
2025-03-10 07:51:22 C 14 55 17.666 -67 40 06.13 V W68
2025-03-10 07:54:00 C 14 55 18.782 -67 40 02.35 V W68
2025-03-10 08:31:32 C 14 55 34.754 -67 39 10.30 V W68
2025-03-10 09:09:06 C 14 55 50.851 -67 38 15.50 V W68
2025-03-19 23:54:16 C 16 37 09.346 -57 20 42.68 V M22
2025-03-19 23:58:19 C 16 37 10.776 -57 20 26.92 V M22
2025-03-20 00:32:46 C 16 37 22.810 -57 18 11.16 V M22
2025-03-24 01:46:58 C 17 11 07.042 -49 21 10.73 V M22
2025-03-24 01:50:13 C 17 11 07.951 -49 20 52.76 V M22
2025-03-24 01:56:47 C 17 11 09.794 -49 20 16.19 V M22
2025-03-24 02:05:22 C 17 11 12.206 -49 19 28.70 V M22
2025-03-28 07:51:28 C 17 40 15.022 -38 18 38.95 V W68
2025-03-28 07:56:03 C 17 40 15.991 -38 18 06.26 V W68
2025-03-28 08:17:08 C 17 40 20.707 -38 15 35.96 V W68
2025-04-01 08:06:06 C 18 02 30.564 -25 42 53.06 V W68
2025-04-01 08:10:39 C 18 02 31.368 -25 42 15.84 V W68
2025-04-01 08:18:35 C 18 02 32.779 -25 41 10.54 V W68
2025-04-01 08:33:11 C 18 02 35.359 -25 39 10.37 V W68
2025-04-06 09:21:03 C 18 24 49.274 -08 40 33.82 V W68
2025-04-06 09:25:39 C 18 24 49.860 -08 39 56.20 V W68
2025-04-06 09:36:43 C 18 24 51.322 -08 38 24.54 V W68
2025-04-06 09:55:01 C 18 24 53.710 -08 35 53.12 V W68