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
2018-10-04 00:59:35 C 02 55 35.99 +07 53 13.0 u 557
2018-10-04 01:00:56 C 02 55 34.85 +07 53 15.0 t 073
2018-10-04 01:30:37 C 02 55 16.49 +07 53 09.1 u 557
2018-10-04 02:30:33 C 02 54 38.76 +07 53 02.5 u 557
2018-10-04 03:00:29 C 02 54 20.03 +07 52 58.2 u 557
2018-10-04 03:27:36 C 02 54 03.08 +07 52 54.8 u 557
2018-10-04 03:59:48 C 02 53 42.94 +07 52 50.7 u 557
2018-10-04 10:20:40 C 02 49 50.760 +07 52 16.21 U F52
2018-10-04 10:38:30 C 02 49 39.683 +07 52 13.81 U F52
2018-10-04 10:56:20 C 02 49 28.476 +07 52 09.85 U F52
2018-10-04 13:48:50 C 02 47 41.84 +07 51 45.5 U T05
2018-10-04 13:53:17 C 02 47 39.10 +07 51 45.0 U T05
2018-10-04 14:22:27 C 02 47 21.14 +07 51 40.1 U T05
2018-10-04 14:43:11 C 02 47 08.39 +07 51 36.5 U T05
2018-10-04 21:27:38 C 02 43 07.59 +07 50 12.1 q A17
2018-10-04 21:30:35 C 02 43 05.67 +07 50 12.1 u 557
2018-10-04 21:32:43 C 02 43 04.51 +07 50 11.3 q A17
2018-10-04 21:54:42 C 02 42 51.32 +07 50 07.6 q A17
2018-10-04 21:54:57 C 02 42 50.88 +07 50 11.6 t 073
2018-10-04 22:00:55 C 02 42 47.41 +07 50 07.1 u 557
2018-10-04 22:30:31 C 02 42 29.61 +07 50 02.0 u 557
2018-10-04 22:36:59 C 02 42 25.48 +07 50 03.8 t 073
2018-10-04 23:00:50 C 02 42 11.37 +07 49 56.7 u 557
2018-10-04 23:30:27 C 02 41 53.58 +07 49 51.5 u 557
2018-10-04 23:32:26 C 02 41 52.11 +07 49 53.3 t 073
2018-10-04 23:59:22 C 02 41 36.27 +07 49 48.0 r 106
2018-10-05 00:03:47 C 02 41 33.49 +07 49 45.3 u 557
2018-10-05 00:24:13 C 02 41 21.30 +07 49 43.4 r 106
2018-10-05 00:31:51 C 02 41 16.65 +07 49 40.3 u 557
2018-10-05 00:38:00 C 02 41 12.69 +07 49 41.9 t 073
2018-10-05 00:49:03 C 02 41 06.38 +07 49 39.0 r 106
2018-10-05 01:02:10 C 02 40 58.47 +07 49 34.7 u 557
2018-10-05 01:13:53 C 02 40 51.42 +07 49 34.4 r 106
2018-10-05 01:31:01 C 02 40 41.19 +07 49 29.2 u 557
2018-10-05 02:00:29 C 02 40 23.50 +07 49 23.7 u 557
2018-10-05 02:30:51 C 02 40 05.37 +07 49 17.6 u 557
2018-10-05 03:00:25 C 02 39 47.73 +07 49 11.6 u 557
2018-10-05 03:30:46 C 02 39 29.68 +07 49 05.7 u 557
2018-10-05 12:52:37 C 02 34 02.34 +07 47 26.7 U T08
2018-10-05 13:07:14 C 02 33 53.77 +07 47 23.6 U T08
2018-10-05 13:21:44 C 02 33 45.27 +07 47 20.3 U T08
2018-10-05 13:36:17 C 02 33 36.75 +07 47 16.8 U T08
2018-10-05 21:29:01 C 02 29 08.73 +07 45 14.3 t 073
2018-10-05 22:02:40 C 02 28 49.50 +07 45 06.4 t 073
2018-10-05 22:36:19 C 02 28 30.32 +07 44 58.5 t 073
2018-10-05 23:18:22 C 02 28 06.28 +07 44 48.5 t 073
2018-10-06 00:02:10 C 02 27 41.35 +07 44 37.2 t 073
2018-10-06 00:24:02 C 02 27 28.89 +07 44 32.0 t 073
2018-10-06 20:15:27 C 02 16 38.04 +07 39 13.5 t 073
2018-10-06 20:57:30 C 02 16 15.48 +07 39 02.1 t 073