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
2018-10-06 21:50:57 C 02 15 46.69 +07 38 46.8 t 073
2018-10-06 22:41:24 C 02 15 19.55 +07 38 32.6 t 073
2018-10-06 23:17:29 C 02 15 00.22 +07 38 22.1 t 073
2018-10-08 20:45:24 C 01 52 25.67 +07 23 39.1 u 557
2018-10-08 21:15:43 C 01 52 11.45 +07 23 28.9 u 557
2018-10-08 21:42:18 C 01 51 59.24 +07 23 18.3 V Z80
2018-10-08 21:45:11 C 01 51 57.65 +07 23 18.9 u 557
2018-10-08 21:45:27 C 01 51 57.81 +07 23 16.4 V Z80
2018-10-08 21:48:55 C 01 51 56.20 +07 23 17.2 V Z80
2018-10-08 21:52:24 C 01 51 54.53 +07 23 14.9 V Z80
2018-10-08 21:55:53 C 01 51 52.94 +07 23 13.6 V Z80
2018-10-08 21:59:22 C 01 51 51.23 +07 23 12.9 V Z80
2018-10-08 22:03:02 C 01 51 49.59 +07 23 10.3 V Z80
2018-10-08 22:06:53 C 01 51 47.74 +07 23 11.1 V Z80
2018-10-08 22:15:14 C 01 51 43.54 +07 23 08.4 u 557
2018-10-08 22:45:33 C 01 51 29.37 +07 22 57.9 u 557
2018-10-08 22:54:35 C 01 51 25.47 +07 22 54.2 V Z80
2018-10-08 22:58:04 C 01 51 23.85 +07 22 52.3 V Z80
2018-10-08 23:01:22 C 01 51 22.31 +07 22 51.5 V Z80
2018-10-08 23:15:51 C 01 51 15.21 +07 22 47.4 u 557
2018-10-08 23:45:19 C 01 51 01.47 +07 22 37.2 u 557
2018-10-09 00:15:38 C 01 50 47.35 +07 22 26.6 u 557
2018-10-09 00:45:02 C 01 50 33.63 +07 22 16.1 u 557
2018-10-09 01:15:21 C 01 50 19.56 +07 22 05.4 u 557
2018-10-09 01:44:49 C 01 50 05.92 +07 21 55.0 u 557
2018-10-09 02:15:07 C 01 49 51.90 +07 21 44.2 u 557
2018-10-09 02:45:42 C 01 49 37.80 +07 21 33.1 u 557
2018-10-10 00:32:48 C 01 40 01.50 +07 13 45.8 u 557
2018-10-10 01:01:29 C 01 39 49.11 +07 13 35.2 u 557
2018-10-10 01:31:04 C 01 39 36.35 +07 13 24.3 u 557
2018-10-10 02:00:42 C 01 39 23.65 +07 13 13.4 u 557
2018-10-10 02:30:18 C 01 39 10.98 +07 13 02.5 u 557
2018-10-10 02:58:58 C 01 38 58.73 +07 12 51.8 u 557
2018-10-10 10:56:49 C 01 35 39.931 +07 10 11.35 U F52
2018-10-10 11:50:34 C 01 35 17.345 +07 09 51.52 U F52
2018-10-11 20:45:06 C 01 22 27.53 +06 57 32.0 u 557
2018-10-11 21:15:40 C 01 22 16.08 +06 57 21.0 u 557
2018-10-11 21:45:10 C 01 22 05.08 +06 57 10.3 u 557
2018-10-11 22:19:48 C 01 21 52.15 +06 56 57.7 u 557
2018-10-11 23:00:29 C 01 21 36.97 +06 56 42.9 u 557
2018-10-11 23:30:32 C 01 21 25.81 +06 56 31.9 u 557
2018-10-12 00:00:00 C 01 21 14.86 +06 56 21.0 u 557
2018-10-12 00:30:36 C 01 21 03.54 +06 56 09.8 u 557
2018-10-12 01:00:04 C 01 20 52.63 +06 55 58.9 u 557
2018-10-12 01:30:38 C 01 20 41.36 +06 55 47.2 u 557
2018-10-12 01:57:57 C 01 20 31.28 +06 55 36.9 u 557
2018-10-13 19:58:01 C 01 06 17.67 +06 40 30.7 u 557
2018-10-13 20:12:27 C 01 06 13.05 +06 40 25.7 u 557
2018-10-13 20:24:40 C 01 06 09.14 +06 40 21.5 u 557
2018-10-13 23:47:18 C 01 05 04.75 +06 39 11.8 U A16