329669 (2003 UD8)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5352878086 ± 2.15e-08
Semi-major axis (a)2.7200050001 AU ± 3.09e-09
Inclination (i)3.88685322° ± 2.04e-06
Long. of Asc. Node (Ω)238.33397039° ± 3.85e-05
Arg. of Perihelion (ω)108.38509875° ± 3.91e-05
Mean Anomaly (M)331.50380252° ± 2.44e-06
Mean Motion (n)0.2197139959°/day ± 3.75e-10
Perihelion dist (q)1.26401948 AU ± 5.84e-08
Aphelion dist (Q)4.17599052 AU ± 5.86e-08
Orbital Period4.48595129 yr ± 7.65e-09
Physical Parameters
H (abs. magnitude)16.72
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.266″
Uncertainty0
Orbit TypeAmor
MOID0.265100 AU
Observations Used534
Oppositions38
Arc Total1976-2025
First Observation Used1976-06-29
Last Observation Used2025-05-28
Observations (596)
Date Type RA Dec Mag Band Observatory
2021-09-24 06:33:54 C 19 12 43.05 -13 14 34.3 V T05
2021-09-24 06:38:31 C 19 12 43.60 -13 14 33.8 V T05
2021-09-24 06:46:32 C 19 12 44.58 -13 14 32.9 V T05
2021-09-24 07:01:05 C 19 12 46.32 -13 14 31.5 V T05
2021-09-28 06:51:25 C 19 25 01.64 -13 03 37.1 V T05
2021-09-28 07:05:32 C 19 25 03.45 -13 03 35.0 V T05
2021-09-28 07:20:06 C 19 25 05.28 -13 03 33.1 V T05
2021-09-29 06:10:17 C 19 28 06.77 -13 00 27.8 V T05
2021-09-29 06:14:57 C 19 28 07.37 -13 00 27.3 V T05
2021-09-29 06:22:20 C 19 28 08.30 -13 00 26.4 V T05
2021-10-02 06:32:49 C 19 37 55.03 -12 49 18.7 V T05
2021-10-02 06:38:07 C 19 37 55.74 -12 49 17.9 V T05
2021-10-02 06:48:01 C 19 37 57.06 -12 49 16.2 V T05
2021-10-02 07:02:37 C 19 37 59.02 -12 49 13.8 V T05
2021-10-03 07:07:08 C 19 41 19.29 -12 45 02.2 V T05
2021-10-03 07:13:08 C 19 41 20.10 -12 45 01.4 V T05
2021-10-03 07:21:44 C 19 41 21.28 -12 44 59.5 V T05
2021-10-03 07:37:39 C 19 41 23.45 -12 44 56.4 V T05
2021-10-04 11:05:59 C 19 45 15.20 -12 39 54.5 V D29
2021-10-04 11:26:20 C 19 45 18.01 -12 39 50.8 V D29
2021-10-04 11:46:42 C 19 45 20.79 -12 39 46.6 V D29
2021-10-06 06:22:11 C 19 51 24.56 -12 31 11.0 V T05
2021-10-06 06:26:48 C 19 51 25.21 -12 31 10.1 V T05
2021-10-06 06:35:24 C 19 51 26.40 -12 31 08.3 V T05
2021-10-06 06:52:33 C 19 51 28.78 -12 31 04.6 V T05
2021-10-09 05:48:24 C 20 01 48.29 -12 14 58.7 V T08
2021-10-09 06:02:35 C 20 01 50.27 -12 14 55.8 V T08
2021-10-09 06:07:54 C 20 01 51.04 -12 14 54.0 V T08
2021-10-11 07:02:49 C 20 09 06.46 -12 02 25.6 V T05
2021-10-11 07:07:27 C 20 09 07.15 -12 02 24.1 V T05
2021-10-11 07:29:51 C 20 09 10.40 -12 02 18.1 V T05
2021-10-16 05:51:47 C 20 27 08.76 -11 27 18.9 V T08
2021-10-16 05:56:27 C 20 27 09.46 -11 27 17.9 V T08
2021-10-16 06:22:22 C 20 27 13.38 -11 27 09.0 V T08
2021-10-16 19:48:06 C 20 29 17.38 -11 22 48.5 V K83
2021-10-16 19:51:04 C 20 29 17.85 -11 22 47.0 V K83
2021-10-16 19:54:21 C 20 29 18.35 -11 22 47.0 V K83
2021-10-19 07:06:17 C 20 38 28.42 -11 02 16.8 V T05
2021-10-19 07:06:56 C 20 38 28.56 -11 02 15.3 V T05
2021-10-19 07:16:52 C 20 38 30.07 -11 02 12.2 V T05
2021-10-19 07:22:09 C 20 38 30.84 -11 02 10.3 V T05
2021-10-19 07:37:19 C 20 38 33.17 -11 02 04.8 V T05
2021-10-19 07:41:17 C 20 38 33.76 -11 02 03.6 V T05
2021-10-19 17:46:01 C 20 40 08.49 -10 58 29.5 V K87
2021-10-19 17:50:14 C 20 40 09.13 -10 58 28.5 V K87
2021-10-19 17:54:27 C 20 40 09.81 -10 58 26.7 V K87
2021-10-21 06:43:15 C 20 45 54.27 -10 44 37.2 V T08
2021-10-21 06:47:53 C 20 45 54.98 -10 44 35.2 V T08
2021-10-21 06:57:50 C 20 45 56.51 -10 44 31.5 V T08
2021-10-21 07:13:47 C 20 45 58.97 -10 44 24.9 V T08