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
2021-07-01 09:17:29 C 18 19 05.57 -16 48 39.6 V T08
2021-07-04 02:29:44 C 18 16 22.81 -16 32 34.7 V W46
2021-07-04 02:51:00 C 18 16 21.81 -16 32 29.4 V W46
2021-07-04 03:12:53 C 18 16 20.84 -16 32 24.1 V W46
2021-07-04 20:29:22 C 18 15 37.14 -16 28 10.7 V L54
2021-07-04 20:59:02 C 18 15 35.81 -16 28 04.0 V L54
2021-07-04 21:28:41 C 18 15 34.53 -16 28 00.0 V L54
2021-07-04 21:29:52 C 18 15 34.44 -16 27 57.2 V L54
2021-07-04 21:38:11 C 18 15 34.03 -16 27 54.6 V L54
2021-07-04 21:45:19 C 18 15 33.72 -16 27 53.2 V L54
2021-07-04 21:46:30 C 18 15 33.67 -16 27 53.2 V L54
2021-07-04 21:48:52 C 18 15 33.61 -16 27 50.7 V L54
2021-07-04 21:51:15 C 18 15 33.57 -16 27 52.3 V L54
2021-07-04 22:51:47 C 18 15 30.71 -16 27 36.0 V L54
2021-07-04 23:19:08 C 18 15 29.48 -16 27 29.2 V L54
2021-07-04 23:46:28 C 18 15 28.25 -16 27 22.3 V L54
2021-07-05 02:52:35 C 18 15 21.03 -16 26 36.3 q W38
2021-07-05 03:11:02 C 18 15 20.19 -16 26 31.5 q W38
2021-07-05 20:27:47 C 18 14 36.45 -16 22 18.5 V L54
2021-07-05 21:02:36 C 18 14 34.83 -16 22 09.6 V L54
2021-07-05 21:37:02 C 18 14 33.37 -16 21 57.8 V L54
2021-07-05 22:20:40 C 18 14 31.37 -16 21 52.3 V L54
2021-07-05 22:42:02 C 18 14 30.44 -16 21 46.0 V L54
2021-07-05 22:53:54 C 18 14 29.92 -16 21 43.1 V L54
2021-07-05 23:12:54 C 18 14 29.02 -16 21 38.3 V L54
2021-07-05 23:30:44 C 18 14 28.23 -16 21 34.1 V L54
2021-07-05 23:33:06 C 18 14 28.13 -16 21 33.7 V L54
2021-07-06 08:02:56 C 18 14 06.74 -16 19 27.9 U I41
2021-07-06 08:35:32 C 18 14 05.25 -16 19 19.8 U I41
2021-07-06 22:52:26 C 18 13 29.33 -16 15 53.8 X G02
2021-07-06 23:00:28 C 18 13 28.96 -16 15 51.9 X G02
2021-07-06 23:10:30 C 18 13 28.52 -16 15 48.4 X G02
2021-07-07 21:03:37 C 18 12 33.80 -16 10 31.7 V G17
2021-07-07 21:08:48 C 18 12 33.57 -16 10 30.2 V G17
2021-07-07 21:13:58 C 18 12 33.34 -16 10 29.1 V G17
2021-07-08 07:33:38 C 18 12 07.00 -16 07 59.0 U I41
2021-07-08 08:34:15 C 18 12 04.23 -16 07 44.0 U I41
2021-07-08 10:30:37 C 18 11 59.46 -16 07 13.4 V T08
2021-07-08 10:35:20 C 18 11 59.25 -16 07 12.3 V T08
2021-07-08 11:21:38 C 18 11 57.14 -16 07 01.0 V T08
2021-07-08 11:35:41 C 18 11 56.49 -16 06 57.4 V T08
2021-07-09 03:38:15 C 18 11 17.12 -16 03 10.6 q W38
2021-07-09 03:57:55 C 18 11 16.19 -16 03 06.7 q W38
2021-07-09 04:18:55 C 18 11 15.26 -16 03 01.5 q W38
2021-07-09 23:51:58 C 18 10 27.33 -15 58 05.1 q 807
2021-07-10 00:12:17 C 18 10 26.44 -15 58 00.7 q 807
2021-07-10 00:33:13 C 18 10 25.50 -15 57 55.7 q 807
2021-07-11 20:06:48 C 18 08 38.41 -15 48 02.3 V L54
2021-07-11 20:27:01 C 18 08 37.59 -15 47 58.6 V L54
2021-07-11 20:48:23 C 18 08 36.62 -15 47 53.6 V L54