2019 UD4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3475448897 ± 8.48e-09
Semi-major axis (a)1.5676885844 AU ± 2.96e-09
Inclination (i)3.33616118° ± 1.41e-06
Long. of Asc. Node (Ω)310.41636292° ± 7.50e-06
Arg. of Perihelion (ω)39.88728781° ± 1.32e-05
Mean Anomaly (M)49.56660471° ± 3.92e-06
Mean Motion (n)0.5021374147°/day ± 1.42e-09
Perihelion dist (q)1.02284643 AU ± 1.34e-08
Aphelion dist (Q)2.11253074 AU ± 1.39e-08
Orbital Period1.96286167 yr ± 5.55e-09
Physical Parameters
H (abs. magnitude)23.17
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.267″
Uncertainty0
Orbit TypeAmor
MOID0.031996 AU
Observations Used340
Oppositions1
Arc Total2019-2021
First Observation Used2019-08-20
Last Observation Used2021-10-11
Observations (353)
Date Type RA Dec Mag Band Observatory
2021-07-30 09:18:49 C 20 10 25.26 -23 13 44.7 V T05
2021-07-30 09:22:47 C 20 10 25.50 -23 13 38.3 V T05
2021-07-30 09:32:41 C 20 10 26.11 -23 13 20.2 V T05
2021-08-01 04:09:35 C 20 14 33.66 -21 48 51.2 X Y00
2021-08-01 04:16:04 C 20 14 34.11 -21 48 36.6 X Y00
2021-08-01 04:23:03 C 20 14 34.69 -21 48 21.5 X Y00
2021-08-02 10:23:27 C 20 17 56.08 -20 42 36.8 V T08
2021-08-02 10:31:25 C 20 17 56.70 -20 42 17.3 V T08
2021-08-02 11:00:18 C 20 17 59.13 -20 41 08.7 V T08
2021-08-02 11:08:28 C 20 17 59.78 -20 40 49.1 V T08
2021-08-03 08:56:41 C 20 20 42.064 -19 47 09.02 U F51
2021-08-03 09:10:03 C 20 20 43.287 -19 46 35.27 U F51
2021-08-03 09:23:24 C 20 20 44.507 -19 46 01.26 U F51
2021-08-03 09:36:46 C 20 20 45.723 -19 45 27.17 U F51
2021-08-04 15:34:30 C 20 24 42.06 -18 24 10.4 q D29
2021-08-04 15:54:51 C 20 24 44.22 -18 23 11.6 q D29
2021-08-04 16:15:13 C 20 24 46.39 -18 22 12.4 q D29
2021-08-06 01:35:36 C 20 29 47.58 -16 39 22.3 V W46
2021-08-06 02:05:19 C 20 29 51.52 -16 37 48.1 V W46
2021-08-06 02:53:51 C 20 29 57.77 -16 35 11.5 V W46
2021-08-06 09:09:37 C 20 30 55.22 -16 13 52.4 V T08
2021-08-06 09:12:17 C 20 30 55.51 -16 13 43.8 V T08
2021-08-06 09:16:19 C 20 30 56.05 -16 13 30.2 V T08
2021-08-06 09:24:21 C 20 30 57.00 -16 13 02.8 V T08
2021-08-08 08:54:52 C 20 39 14.496 -13 16 13.96 U F51
2021-08-08 09:09:30 C 20 39 16.68 -13 15 14.9 V T05
2021-08-08 09:12:05 C 20 39 17.052 -13 15 04.23 U F51
2021-08-08 09:12:08 C 20 39 17.06 -13 15 04.0 V T05
2021-08-08 09:23:22 C 20 39 18.72 -13 14 18.5 V T05
2021-08-08 09:29:20 C 20 39 19.612 -13 13 54.02 U F51
2021-08-08 09:46:33 C 20 39 22.155 -13 12 43.79 U F51
2021-08-09 01:27:25 C 20 42 23.26 -12 06 44.4 V G40
2021-08-09 02:08:30 C 20 42 29.91 -12 03 44.2 V G40
2021-08-09 09:11:42 C 20 44 01.53 -11 32 11.3 V T08
2021-08-09 09:17:01 C 20 44 02.40 -11 31 47.6 V T08
2021-08-09 09:23:00 C 20 44 03.36 -11 31 20.9 V T08
2021-08-09 09:30:58 C 20 44 04.67 -11 30 45.2 V T08
2021-08-09 15:25:43 C 20 45 18.18 -11 04 19.1 q D29
2021-08-09 15:46:05 C 20 45 21.67 -11 02 45.6 q D29
2021-08-09 20:40:27 C 20 46 26.69 -10 40 22.5 V L18
2021-08-09 20:41:24 C 20 46 26.85 -10 40 18.2 V L18
2021-08-09 20:42:21 C 20 46 27.02 -10 40 12.8 V L18
2021-08-09 20:43:18 C 20 46 27.21 -10 40 09.1 V L18
2021-08-09 20:44:15 C 20 46 27.40 -10 40 04.5 V L18
2021-08-09 20:45:12 C 20 46 27.56 -10 40 00.9 V L18
2021-08-09 20:46:09 C 20 46 27.77 -10 39 56.1 V L18
2021-08-09 20:47:06 C 20 46 27.93 -10 39 50.4 V L18
2021-08-09 20:48:03 C 20 46 28.07 -10 39 47.7 V L18
2021-08-09 20:49:00 C 20 46 28.27 -10 39 42.7 V L18
2021-08-09 21:49:16 C 20 46 41.45 -10 35 03.7 q G01