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
2021-08-09 21:50:22 C 20 46 41.65 -10 34 57.3 q G01
2021-08-09 21:51:27 C 20 46 41.86 -10 34 54.4 q G01
2021-08-09 21:52:31 C 20 46 42.13 -10 34 50.2 q G01
2021-08-10 09:11:00 C 20 49 11.75 -09 39 08.1 V T08
2021-08-10 09:13:39 C 20 49 12.24 -09 38 55.4 V T08
2021-08-10 09:17:39 C 20 49 12.95 -09 38 35.5 V T08
2021-08-10 09:24:59 C 20 49 14.28 -09 37 59.4 V T08
2021-08-10 13:42:57 C 20 50 12.61 -09 17 12.5 q Q21
2021-08-10 13:48:01 C 20 50 13.56 -09 16 46.5 q Q21
2021-08-10 19:46:26 C 20 51 39.90 -08 46 37.2 V L54
2021-08-10 20:10:11 C 20 51 44.75 -08 44 36.3 V L54
2021-08-10 20:35:07 C 20 51 49.77 -08 42 27.6 V L54
2021-08-10 20:54:06 C 20 51 53.65 -08 40 50.4 V L54
2021-08-10 21:03:36 C 20 51 55.57 -08 40 01.6 V L54
2021-08-10 21:12:44 C 20 51 58.80 -08 39 25.0 q G01
2021-08-10 21:13:06 C 20 51 57.45 -08 39 12.9 V L54
2021-08-10 21:13:52 C 20 51 59.00 -08 39 19.8 q G01
2021-08-10 21:14:56 C 20 51 59.25 -08 39 13.7 q G01
2021-08-10 21:16:03 C 20 51 59.50 -08 39 08.3 q G01
2021-08-10 23:46:44 C 20 52 30.72 -08 26 05.9 q G01
2021-08-10 23:47:49 C 20 52 30.91 -08 26 01.1 q G01
2021-08-10 23:48:53 C 20 52 31.15 -08 25 54.6 q G01
2021-08-10 23:49:58 C 20 52 31.35 -08 25 49.2 q G01
2021-08-11 08:23:48 C 20 54 41.122 -07 39 06.94 U F51
2021-08-11 08:41:39 C 20 54 44.707 -07 37 31.22 U F51
2021-08-11 08:59:28 C 20 54 48.271 -07 35 55.32 U F51
2021-08-11 09:17:17 C 20 54 51.817 -07 34 19.22 U F51
2021-08-11 21:33:40 C 20 57 57.53 -06 27 16.5 q G01
2021-08-11 21:34:48 C 20 57 57.96 -06 27 10.6 q G01
2021-08-11 21:35:53 C 20 57 58.08 -06 27 03.0 q G01
2021-08-11 21:36:57 C 20 57 58.35 -06 26 54.8 q G01
2021-08-11 22:09:33 C 20 58 05.66 -06 23 46.0 V K87
2021-08-11 22:11:10 C 20 58 05.99 -06 23 37.0 V K87
2021-08-11 22:12:48 C 20 58 06.35 -06 23 27.8 V K87
2021-08-11 23:08:59 C 20 58 19.29 -06 18 13.8 q G01
2021-08-11 23:10:05 C 20 58 19.62 -06 18 06.1 q G01
2021-08-11 23:11:10 C 20 58 19.72 -06 18 00.6 q G01
2021-08-11 23:12:14 C 20 58 20.02 -06 17 52.2 q G01
2021-08-12 20:24:05 C 21 04 06.41 -04 11 23.2 X G02
2021-08-12 20:30:36 C 21 04 08.11 -04 10 42.2 X G02
2021-08-12 20:37:38 C 21 04 09.82 -04 09 59.1 X G02
2021-08-12 21:07:18 C 21 04 18.54 -04 06 43.4 V G17
2021-08-12 21:10:00 C 21 04 19.23 -04 06 26.5 V G17
2021-08-12 21:12:40 C 21 04 19.90 -04 06 10.0 V G17
2021-08-12 21:29:51 C 21 04 22.67 -04 04 32.1 V K88
2021-08-12 21:32:42 C 21 04 23.39 -04 04 14.1 V K88
2021-08-12 21:35:31 C 21 04 24.04 -04 03 56.7 V K88
2021-08-12 22:11:13 C 21 04 31.87 -04 00 15.8 V L18
2021-08-12 22:13:43 C 21 04 32.45 -03 59 59.8 V L18
2021-08-12 22:16:13 C 21 04 33.11 -03 59 44.3 V L18