155140 (2005 UD)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8724259073 ± 1.58e-08
Semi-major axis (a)1.2748022331 AU ± 6.83e-10
Inclination (i)28.61064732° ± 4.45e-06
Long. of Asc. Node (Ω)19.65021611° ± 1.51e-06
Arg. of Perihelion (ω)207.67056636° ± 2.42e-06
Mean Anomaly (M)20.32351625° ± 3.75e-06
Mean Motion (n)0.6847752463°/day ± 5.50e-10
Perihelion dist (q)0.16263174 AU ± 2.01e-08
Aphelion dist (Q)2.38697273 AU ± 2.01e-08
Orbital Period1.43934275 yr ± 1.16e-09
Physical Parameters
H (abs. magnitude)17.47
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.191″
Uncertainty0
Orbit TypeApollo
MOID0.076425 AU
Observations Used902
Oppositions13
Arc Total1982-2024
First Observation Used1982-11-06
Last Observation Used2024-12-19
Observations (999)
Date Type RA Dec Mag Band Observatory
2020-12-06 10:52:29 C 01 23 01.220 +34 18 18.08 U F51
2020-12-06 11:09:32 C 01 23 00.088 +34 18 07.96 U F51
2020-12-06 11:26:25 C 01 22 59.003 +34 17 57.78 U F51
2020-12-17 04:18:42 C 01 09 55.30 +31 54 49.4 V G96
2020-12-17 04:26:08 C 01 09 55.05 +31 54 45.4 V G96
2020-12-17 04:33:35 C 01 09 54.71 +31 54 42.0 V G96
2020-12-17 04:41:01 C 01 09 54.42 +31 54 37.2 V G96
2021-01-07 06:33:49 C 01 01 25.951 +28 27 45.97 U F52
2021-01-07 06:49:40 C 01 01 25.981 +28 27 41.41 U F52
2021-01-07 07:05:30 C 01 01 25.953 +28 27 36.67 U F52
2021-08-10 14:18:20 C 04 49 02.603 +18 21 03.28 U F51
2021-08-10 14:26:07 C 04 49 02.328 +18 21 06.61 U F51
2021-08-10 14:33:58 C 04 49 02.055 +18 21 10.01 U F51
2021-08-10 14:41:46 C 04 49 01.786 +18 21 13.46 U F51
2021-09-16 09:44:52 C 03 50 44.01 +24 02 50.5 V 703
2021-09-16 09:52:26 C 03 50 42.98 +24 02 51.1 V 703
2021-09-16 09:59:59 C 03 50 42.04 +24 02 53.3 V 703
2021-09-28 12:21:57 C 03 10 05.43 +24 51 29.1 V T08
2021-09-28 12:37:47 C 03 10 02.89 +24 51 30.8 V T08
2021-09-28 12:42:29 C 03 10 02.08 +24 51 31.1 V T08
2021-09-28 12:48:34 C 03 10 01.07 +24 51 31.7 V T08
2021-09-29 10:30:45 C 03 06 33.506 +24 51 55.87 U F52
2021-09-29 10:48:58 C 03 06 30.534 +24 51 56.20 U F52
2021-09-29 11:07:11 C 03 06 27.548 +24 51 56.49 U F52
2021-09-30 12:46:59 C 03 02 17.51 +24 51 45.8 V T05
2021-09-30 12:51:58 C 03 02 16.74 +24 51 45.2 V T05
2021-09-30 13:38:08 C 03 02 09.05 +24 51 43.7 V T05
2021-09-30 13:46:26 C 03 02 07.62 +24 51 43.7 V T05
2021-10-03 08:34:34 C 02 51 02.25 +24 47 29.9 V 703
2021-10-03 08:44:12 C 02 51 00.54 +24 47 29.1 V 703
2021-10-03 08:51:48 C 02 50 59.26 +24 47 27.4 V 703
2021-10-03 08:59:23 C 02 50 57.97 +24 47 26.8 V 703
2021-10-06 10:54:15 C 02 38 22.70 +24 36 31.7 V T08
2021-10-06 11:01:35 C 02 38 21.36 +24 36 31.6 V T08
2021-10-06 11:06:14 C 02 38 20.56 +24 36 30.3 V T08
2021-10-06 11:28:11 C 02 38 16.68 +24 36 26.4 V T08
2021-10-09 01:14:29 C 02 27 38.11 +24 22 04.9 V K88
2021-10-09 01:17:20 C 02 27 37.59 +24 22 04.4 V K88
2021-10-09 01:20:11 C 02 27 37.10 +24 22 03.1 V K88
2021-10-09 07:28:50 C 02 26 33.93 +24 20 26.4 V 703
2021-10-09 07:37:03 C 02 26 32.50 +24 20 23.4 V 703
2021-10-09 07:45:13 C 02 26 31.07 +24 20 21.7 V 703
2021-10-09 07:53:24 C 02 26 29.62 +24 20 19.4 V 703
2021-10-11 17:26:00 C 02 16 36.35 +24 02 36.3 V D29
2021-10-11 17:46:21 C 02 16 32.80 +24 02 29.0 V D29
2021-10-11 18:06:43 C 02 16 29.26 +24 02 21.9 V D29
2021-10-13 00:10:25 C 02 11 22.24 +23 51 36.9 V K88
2021-10-13 00:13:15 C 02 11 21.75 +23 51 36.2 V K88
2021-10-13 00:16:06 C 02 11 21.27 +23 51 34.7 V K88
2021-10-13 05:51:26 C 02 10 24.94 +23 49 31.2 V G96