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
2021-11-08 03:01:52 C 21 53 08.81 -07 22 49.2 V 703
2021-11-08 03:08:52 C 21 53 09.86 -07 22 45.4 V 703
2021-11-08 03:15:52 C 21 53 10.96 -07 22 41.9 V 703
2021-11-08 06:17:01 C 21 53 38.99 -07 20 59.5 V T05
2021-11-08 06:21:38 C 21 53 39.69 -07 20 57.1 V T05
2021-11-08 06:29:37 C 21 53 40.89 -07 20 52.7 V T05
2021-11-08 06:44:13 C 21 53 43.11 -07 20 44.5 V T05
2021-11-16 04:28:02 C 22 22 40.54 -05 31 45.5 V 703
2021-11-16 04:36:10 C 22 22 41.83 -05 31 40.1 V 703
2021-11-16 04:44:18 C 22 22 43.00 -05 31 34.8 V 703
2021-11-16 04:52:26 C 22 22 44.26 -05 31 30.4 V 703
2021-11-17 04:03:55 C 22 26 12.55 -05 17 38.5 V G96
2021-11-17 04:10:05 C 22 26 13.48 -05 17 34.9 V G96
2021-11-17 04:16:13 C 22 26 14.36 -05 17 31.5 V G96
2021-11-17 04:22:23 C 22 26 15.27 -05 17 27.6 V G96
2021-11-17 04:44:37 C 22 26 18.74 -05 17 14.4 V 703
2021-11-17 05:06:55 C 22 26 21.84 -05 17 00.9 V 703
2021-11-20 08:16:57 C 22 37 29.33 -04 31 26.6 V T05
2021-11-20 08:22:56 C 22 37 30.20 -04 31 22.4 V T05
2021-11-20 08:30:54 C 22 37 31.26 -04 31 17.8 V T05
2021-11-20 08:49:23 C 22 37 33.97 -04 31 05.8 V T05
2021-11-22 06:30:23 C 22 44 14.404 -04 03 03.07 U F51
2021-11-22 06:47:10 C 22 44 16.802 -04 02 52.72 U F51
2021-11-22 07:03:59 C 22 44 19.194 -04 02 42.33 U F51
2021-11-22 07:20:45 C 22 44 21.585 -04 02 31.90 U F51
2021-11-24 06:18:28 C 22 51 08.36 -03 33 27.2 V T05
2021-11-24 06:26:25 C 22 51 09.50 -03 33 22.4 V T05
2021-11-24 06:31:46 C 22 51 10.25 -03 33 19.3 V T05
2021-11-24 06:47:07 C 22 51 12.42 -03 33 09.7 V T05
2021-11-28 03:06:50 C 23 04 18.12 -02 35 31.7 V 703
2021-11-28 03:14:30 C 23 04 19.17 -02 35 26.3 V 703
2021-11-28 03:22:11 C 23 04 20.22 -02 35 21.9 V 703
2021-11-28 03:29:52 C 23 04 21.25 -02 35 16.5 V 703
2021-11-28 07:18:26 C 23 04 53.13 -02 32 51.7 V T05
2021-11-28 07:23:03 C 23 04 53.76 -02 32 48.5 V T05
2021-11-28 07:30:58 C 23 04 54.86 -02 32 43.4 V T05
2021-11-28 07:48:12 C 23 04 57.21 -02 32 32.7 V T05
2021-11-29 17:04:56 C 23 09 36.04 -02 11 42.7 V 130
2021-11-29 17:10:56 C 23 09 36.86 -02 11 39.3 V 130
2021-11-29 17:17:22 C 23 09 37.75 -02 11 35.0 V 130
2021-12-02 03:01:22 C 23 17 34.54 -01 35 12.5 V 703
2021-12-02 03:09:32 C 23 17 35.68 -01 35 07.3 V 703
2021-12-02 03:17:43 C 23 17 36.77 -01 35 02.0 V 703
2021-12-03 03:08:17 C 23 20 51.68 -01 20 00.5 V G96
2021-12-03 03:16:26 C 23 20 52.77 -01 19 55.3 V G96
2021-12-03 03:24:36 C 23 20 53.85 -01 19 50.2 V G96
2021-12-03 03:32:46 C 23 20 54.96 -01 19 45.1 V G96
2021-12-03 19:39:35 C 23 23 06.03 -01 09 37.4 V 130
2021-12-03 19:48:10 C 23 23 07.10 -01 09 32.6 V 130
2021-12-05 03:02:25 C 23 27 19.54 -00 49 48.9 V 703