IAA RAS IAA Minor Planet Database

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
2019-08-20 06:07:47 C 16 22 09.729 -20 14 20.32 – V F51
2019-08-20 06:35:37 C 16 22 11.492 -20 14 03.53 – V F51
2019-08-20 06:49:31 C 16 22 12.378 -20 13 55.17 – V F51
2019-10-14 05:23:35 C 20 30 06.979 +07 21 27.46 – V F52
2019-10-14 05:40:31 C 20 30 12.236 +07 22 01.48 – V F52
2019-10-22 07:53:37 C 21 34 30.718 +13 17 38.63 – U F51
2019-10-22 08:25:44 C 21 34 40.779 +13 18 28.75 – U F51
2019-10-22 08:41:48 C 21 34 45.845 +13 18 53.80 – U F51
2019-10-22 18:34:41 C 21 38 03.16 +13 34 05.6 – V L01
2019-10-22 18:37:12 C 21 38 03.95 +13 34 09.7 – V L01
2019-10-22 18:46:46 C 21 38 06.95 +13 34 25.0 – V L01
2019-10-22 18:50:16 C 21 38 08.02 +13 34 30.5 – V L01
2019-10-22 18:53:25 C 21 38 09.01 +13 34 34.8 – V L01
2019-10-23 01:45:59 C 21 40 23.90 +13 45 20.7 – u H21
2019-10-23 01:50:18 C 21 40 25.25 +13 45 27.4 – u H21
2019-10-23 01:54:29 C 21 40 26.56 +13 45 33.9 – u H21
2019-10-24 01:42:40 C 21 48 12.64 +14 21 25.7 – V H01
2019-10-24 01:48:58 C 21 48 14.57 +14 21 35.0 – V H01
2019-10-24 02:03:18 C 21 48 18.99 +14 21 56.2 – V H01
2019-10-24 02:20:36 C 21 48 24.32 +14 22 21.7 – V H01
2019-10-25 02:18:29 C 21 56 07.68 +14 56 34.2 – V G96
2019-10-25 02:26:05 C 21 56 10.01 +14 56 45.7 – V G96
2019-10-25 02:33:39 C 21 56 12.31 +14 56 56.2 – V G96
2019-10-28 02:16:18 C 22 18 42.23 +16 28 11.7 – V H21
2019-10-28 02:30:28 C 22 18 46.38 +16 28 27.7 – V H21
2019-10-28 02:43:58 C 22 18 50.34 +16 28 43.7 – V H21
2019-10-29 03:53:01 C 22 26 29.94 +16 57 02.3 – o 691
2019-10-29 04:02:57 C 22 26 32.81 +16 57 12.2 – o 691
2019-10-29 04:12:52 C 22 26 35.64 +16 57 23.8 – o 691
2019-10-29 08:18:43 C 22 27 48.578 +17 01 56.72 – U F52
2019-10-29 08:33:35 C 22 27 52.821 +17 02 11.89 – U F52
2019-11-02 07:41:54 C 22 55 25.233 +18 30 25.74 – U F51
2019-11-02 08:00:13 C 22 55 30.027 +18 30 39.77 – U F51
2019-11-02 08:36:48 C 22 55 39.659 +18 31 07.63 – U F51
2019-11-19 07:40:22 C 00 27 33.66 +21 11 54.6 – o 291
2019-11-19 07:48:58 C 00 27 35.14 +21 11 55.8 – o 291
2019-11-19 07:57:35 C 00 27 36.67 +21 11 56.3 – o 291
2019-11-26 02:52:06 C 00 54 36.17 +21 25 28.6 – u H21
2019-11-26 03:02:58 C 00 54 37.65 +21 25 28.9 – u H21
2019-11-26 03:19:54 C 00 54 40.01 +21 25 29.0 – u H21
2019-12-24 07:10:13 C 02 16 54.131 +21 43 14.00 – V T12
2019-12-24 07:15:41 C 02 16 54.655 +21 43 14.19 – V T12
2019-12-24 07:21:11 C 02 16 55.190 +21 43 14.34 – V T12
2021-06-12 06:36:04 C 19 26 14.77 -31 06 56.8 – V 807
2021-06-12 06:44:02 C 19 26 15.00 -31 06 57.0 – V 807
2021-06-12 06:52:00 C 19 26 15.22 -31 06 58.5 – V 807
2021-06-13 06:48:00 C 19 27 08.80 -31 08 03.7 – V 807
2021-06-13 06:58:39 C 19 27 09.12 -31 08 04.2 – V 807
2021-06-13 07:09:16 C 19 27 09.41 -31 08 04.4 – V 807
2021-07-30 09:14:50 C 20 10 24.99 -23 13 51.5 – V T05