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
1999-10-07 20:17:30 C 22 07 39.65 +00 45 56.0 z 143
1999-10-07 20:24:37 C 22 07 39.96 +00 45 35.7 19.5 z 143
1999-10-07 20:26:58 C 22 07 40.09 +00 45 28.7 z 143
1999-10-08 05:52:40 C 22 08 10.786 +00 18 44.46 645
1999-10-08 05:53:52 C 22 08 10.846 +00 18 41.03 645
1999-10-08 05:56:15 C 22 08 10.970 +00 18 34.19 645
1999-10-08 05:57:27 C 22 08 11.014 +00 18 31.29 645
1999-10-15 02:17:27 C 22 18 33.33 -06 42 06.3 19.2 a 704
1999-10-15 03:04:06 C 22 18 36.17 -06 43 52.5 19.9 a 704
1999-10-15 03:26:27 C 22 18 37.51 -06 44 44.0 20.0 a 704
1999-10-15 03:48:42 C 22 18 38.81 -06 45 34.5 19.6 a 704
1999-10-15 13:33:23 C 22 19 17.70 -07 06 48.1 413
1999-10-15 13:36:23 C 22 19 17.88 -07 06 54.9 413
1999-10-16 05:00:40 C 22 20 24.19 -07 41 47.7 c 658
1999-10-16 05:04:48 C 22 20 24.45 -07 41 58.0 c 658
1999-10-16 05:08:32 C 22 20 24.73 -07 42 06.9 c 658
1999-10-16 14:22:12 C 22 21 02.17 -08 01 16.7 413
1999-10-16 14:24:46 C 22 21 02.35 -08 01 22.1 413
1999-10-18 04:10:50 C 22 23 48.51 -09 21 04.6 c 658
1999-10-18 04:18:02 C 22 23 48.92 -09 21 19.1 c 658
1999-10-18 04:31:54 C 22 23 49.81 -09 21 47.2 c 658
1999-11-02 11:31:21 C 22 53 57.58 -18 17 59.8 413
1999-11-02 11:34:41 C 22 53 57.92 -18 18 03.1 413
1999-11-02 11:38:25 C 22 53 58.18 -18 18 07.4 413
1999-11-04 12:23:33 C 22 58 20.25 -19 02 41.8 413
2007-09-10 11:00:53 C 04 34 46.12 +25 14 57.3 o 291
2007-09-10 11:09:21 C 04 34 47.15 +25 14 50.3 o 291
2007-09-10 11:17:50 C 04 34 48.20 +25 14 44.1 o 291
2007-09-15 10:38:00 C 04 49 50.26 +23 31 58.0 r G96
2007-09-15 10:54:33 C 04 49 52.24 +23 31 42.8 r G96
2007-09-15 11:02:32 C 04 49 53.18 +23 31 35.2 r G96
2007-09-18 09:07:50 C 04 58 29.63 +22 23 04.6 22.3 o H55
2007-09-18 09:16:14 C 04 58 30.60 +22 22 56.6 20.4 o H55
2007-09-18 09:24:31 C 04 58 31.53 +22 22 49.9 22.1 o H55
2007-09-18 10:54:41 C 04 58 42.63 +22 21 18.7 r G96
2007-09-18 11:02:59 C 04 58 43.64 +22 21 09.7 r G96
2007-09-18 11:11:17 C 04 58 44.61 +22 21 01.3 r G96
2007-09-18 11:19:44 C 04 58 45.58 +22 20 52.8 r G96
2007-10-20 09:37:17 C 06 18 24.71 +02 52 42.5 o 291
2007-10-20 09:47:41 C 06 18 25.64 +02 52 18.9 o 291
2007-10-20 09:54:26 C 06 18 26.09 +02 52 07.3 o 291
2007-11-13 11:16:26 C 06 53 45.20 -18 34 19.1 o 291
2007-11-13 11:35:17 C 06 53 45.80 -18 35 01.5 o 291
2008-02-11 08:48:57 C 05 47 45.12 -48 15 16.7 r F85
2008-02-11 09:26:28 C 05 47 44.48 -48 14 42.5 r F85
2008-02-11 10:19:59 C 05 47 43.83 -48 13 53.6 r F85
2008-03-06 11:33:12 C 06 04 06.38 -35 47 45.4 r E12
2008-03-06 11:45:04 C 06 04 06.92 -35 47 20.8 r E12
2008-03-06 12:08:52 C 06 04 08.11 -35 46 32.1 r E12
2008-04-06 02:07:09 C 07 29 50.59 +09 19 54.7 r H45