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
2018-10-17 21:35:59 C 00 40 00.25 +06 09 04.7 u 557
2018-10-17 22:05:53 C 00 39 53.35 +06 08 56.1 u 557
2018-10-17 22:35:48 C 00 39 46.46 +06 08 47.5 u 557
2018-10-17 23:05:40 C 00 39 39.57 +06 08 38.9 u 557
2018-10-17 23:35:34 C 00 39 32.71 +06 08 30.3 u 557
2018-10-18 02:35:31 C 00 38 53.76 +06 07 43.3 V 703
2018-10-18 02:43:19 C 00 38 52.00 +06 07 41.3 V 703
2018-10-18 02:51:06 C 00 38 50.22 +06 07 39.1 V 703
2018-10-18 02:58:54 C 00 38 48.53 +06 07 36.5 V 703
2018-10-18 05:16:44 C 00 38 17.22 +06 06 58.4 V G96
2018-10-18 05:24:49 C 00 38 15.39 +06 06 56.2 V G96
2018-10-18 05:32:51 C 00 38 13.57 +06 06 53.9 V G96
2018-10-18 05:40:54 C 00 38 11.75 +06 06 51.6 V G96
2018-10-20 21:21:34 C 00 25 32.18 +05 50 18.4 q 160
2018-10-20 21:24:41 C 00 25 31.62 +05 50 17.8 q 160
2018-10-20 21:27:56 C 00 25 31.01 +05 50 17.2 q 160
2018-10-21 21:56:41 C 00 21 19.80 +05 44 44.8 V C95
2018-10-21 22:02:16 C 00 21 18.73 +05 44 43.5 V C95
2018-11-01 04:33:48 C 23 53 50.63 +05 10 47.2 V 703
2018-11-01 04:41:53 C 23 53 50.02 +05 10 46.5 V 703
2018-11-01 04:49:59 C 23 53 49.43 +05 10 46.7 V 703
2018-11-01 04:58:03 C 23 53 48.79 +05 10 45.2 V 703
2018-11-01 06:48:16 C 23 53 41.294 +05 10 40.48 U F52
2018-11-01 07:08:43 C 23 53 39.784 +05 10 39.14 U F52
2018-11-01 07:29:12 C 23 53 38.268 +05 10 37.79 U F52
2018-11-02 02:10:34 C 23 52 22.53 +05 09 25.3 V G96
2018-11-02 02:18:43 C 23 52 21.97 +05 09 24.9 V G96
2018-11-02 02:26:52 C 23 52 21.41 +05 09 24.4 V G96
2018-11-02 02:35:02 C 23 52 20.85 +05 09 24.0 V G96
2018-11-02 09:21:49 C 23 51 53.75 +05 09 03.6 U T08
2018-11-02 09:36:20 C 23 51 52.79 +05 09 03.2 U T08
2018-11-02 09:50:46 C 23 51 51.83 +05 09 02.6 U T08
2018-11-02 10:10:44 C 23 51 50.49 +05 09 01.1 U T08
2018-11-04 04:16:58 C 23 49 21.89 +05 07 07.4 V 703
2018-11-04 04:24:35 C 23 49 21.40 +05 07 07.0 V 703
2018-11-04 04:32:13 C 23 49 21.01 +05 07 06.5 V 703
2018-11-04 04:39:50 C 23 49 20.53 +05 07 06.0 V 703
2018-11-09 07:48:45 C 23 44 03.059 +05 06 03.87 U F52
2018-11-09 08:08:19 C 23 44 02.367 +05 06 04.14 U F52
2018-11-09 08:27:52 C 23 44 01.674 +05 06 04.41 U F52
2018-11-09 08:47:24 C 23 44 00.987 +05 06 04.70 U F52
2018-11-11 03:15:48 C 23 42 46.56 +05 07 02.4 V G96
2018-11-11 03:24:07 C 23 42 46.32 +05 07 02.8 V G96
2018-11-11 03:32:24 C 23 42 46.08 +05 07 03.0 V G96
2018-11-11 03:40:42 C 23 42 45.84 +05 07 03.1 V G96
2018-11-13 04:01:12 C 23 41 38.65 +05 08 57.8 o 691
2018-11-13 04:19:34 C 23 41 38.21 +05 08 59.2 o 691
2018-11-13 04:37:31 C 23 41 37.83 +05 08 59.9 o 691
2019-01-03 05:10:23 C 00 04 23.789 +08 46 40.03 U F51
2019-01-03 05:29:01 C 00 04 24.501 +08 46 45.06 U F51