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
1999-09-29 02:43:06 c 21 57 53.91 +11 43 45.1 c 703
1999-09-29 03:00:54 c 21 57 54.40 +11 42 46.2 c 703
1999-09-29 03:18:45 c 21 57 54.81 +11 41 47.1 c 703
1999-09-29 03:36:37 c 21 57 55.29 +11 40 46.0 c 703
1999-09-29 05:04:37 c 21 57 57.48 +11 35 49.5 c 703
1999-09-29 05:09:15 c 21 57 57.62 +11 35 37.2 c 703
1999-09-29 05:11:40 c 21 57 57.70 +11 35 29.1 c 703
1999-09-29 05:15:12 c 21 57 57.79 +11 35 17.1 c 703
1999-09-29 18:04:30 C 21 58 28.53 +10 52 17.9 o 461
1999-09-29 18:08:15 C 21 58 28.62 +10 52 04.9 o 461
1999-09-30 02:16:59 c 21 58 48.53 +10 25 16.6 c 703
1999-09-30 02:20:44 c 21 58 48.53 +10 25 01.2 c 703
1999-09-30 02:24:29 c 21 58 48.65 +10 24 49.6 c 703
1999-09-30 02:29:59 c 21 58 48.83 +10 24 29.5 c 703
1999-09-30 04:40:41 C 21 58 52.23 +10 17 17.1 18.9 a 704
1999-09-30 05:22:54 C 21 58 53.45 +10 14 57.1 18.7 a 704
1999-09-30 06:05:14 C 21 58 54.64 +10 12 37.4 18.9 a 704
1999-09-30 12:10:50 C 21 59 10.45 +09 53 20.2 d 426
1999-09-30 12:15:46 C 21 59 10.58 +09 53 03.4 d 426
1999-09-30 12:21:16 C 21 59 10.69 +09 52 46.1 d 426
1999-09-30 12:26:11 C 21 59 10.85 +09 52 29.5 d 426
1999-10-01 02:23:12 c 21 59 46.89 +09 05 47.9 c 703
1999-10-01 02:26:13 c 21 59 47.04 +09 05 37.3 c 703
1999-10-01 02:28:21 c 21 59 47.20 +09 05 32.1 c 703
1999-10-01 13:19:25 C 22 00 12.21 +08 30 55.9 d 426
1999-10-01 13:24:24 C 22 00 12.37 +08 30 40.3 d 426
1999-10-01 18:10:55 C 22 00 26.60 +08 14 06.2 557
1999-10-01 18:12:47 C 22 00 26.64 +08 13 59.8 557
1999-10-01 18:14:37 C 22 00 26.69 +08 13 53.6 557
1999-10-01 18:16:29 C 22 00 26.79 +08 13 47.1 557
1999-10-01 19:18:59 C 22 00 28.96 +08 10 26.2 d 046
1999-10-01 19:22:07 C 22 00 29.13 +08 10 16.8 d 046
1999-10-01 19:27:20 C 22 00 29.33 +08 09 59.5 d 046
1999-10-01 20:25:11 C 22 00 31.43 +08 06 51.8 z 587
1999-10-01 20:31:05 C 22 00 31.62 +08 06 34.3 z 587
1999-10-01 20:38:17 C 22 00 31.94 +08 06 11.3 z 587
1999-10-01 22:24:16 C 22 00 35.25 +08 00 26.1 c 118
1999-10-01 22:36:44 C 22 00 35.74 +07 59 46.0 c 118
1999-10-01 22:52:02 C 22 00 36.25 +07 58 55.5 c 118
1999-10-02 13:04:11 C 22 01 14.66 +07 14 12.6 d 426
1999-10-02 13:09:32 C 22 01 14.83 +07 13 55.3 d 426
1999-10-02 13:14:32 C 22 01 15.01 +07 13 39.8 d 426
1999-10-05 20:13:43 C 22 05 04.69 +03 06 59.1 z 587
1999-10-05 20:28:30 C 22 05 05.41 +03 06 15.8 z 587
1999-10-06 13:19:29 C 22 05 57.02 +02 16 58.2 413
1999-10-06 13:21:49 C 22 05 57.12 +02 16 51.5 413
1999-10-07 12:55:22 C 22 07 13.96 +01 08 00.7 413
1999-10-07 12:57:57 C 22 07 14.08 +01 07 53.0 413
1999-10-07 20:03:15 C 22 07 38.94 +00 46 39.6 19.3 z 143
1999-10-07 20:12:45 C 22 07 39.48 +00 46 11.9 z 143