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
2005-11-17 02:45:02 C 23 08 38.52 -01 20 33.0 r 448
2005-11-17 03:01:54 C 23 08 38.92 -01 20 24.1 r 448
2005-11-17 03:19:52 C 23 08 39.42 -01 20 14.5 r 448
2005-11-19 04:35:14 C 23 10 15.838 -00 54 07.45 e 645
2005-11-19 04:40:14 C 23 10 15.995 -00 54 04.81 20.17 e 645
2005-11-26 04:37:48 C 23 16 06.198 +00 26 31.65 e 645
2005-11-26 04:42:48 C 23 16 06.365 +00 26 33.85 20.67 e 645
2005-11-27 02:08:28 C 23 16 53.50 +00 36 09.1 c 711
2005-11-27 02:37:59 C 23 16 54.56 +00 36 21.6 c 711
2005-11-30 04:20:35 C 23 19 39.188 +01 08 19.53 e 645
2005-11-30 04:25:35 C 23 19 39.370 +01 08 21.62 21.04 e 645
2006-10-23 10:29:11 C 06 30 50.97 +55 25 00.1 c 711
2006-10-23 10:36:44 C 06 30 51.16 +55 25 07.9 c 711
2006-10-23 10:44:17 C 06 30 51.43 +55 25 17.8 c 711
2006-11-05 08:07:48 C 06 36 05.84 +62 48 21.9 o 448
2006-11-05 08:31:18 C 06 36 05.65 +62 49 03.0 o 448
2006-11-05 08:45:14 C 06 36 05.57 +62 49 25.9 o 448
2006-12-10 18:03:24 C 21 30 30.04 +74 18 51.1 18.9 o 130
2006-12-10 18:08:28 C 21 30 28.18 +74 18 32.2 19.2 o 130
2006-12-10 18:13:48 C 21 30 26.27 +74 18 11.5 19.3 o 130
2006-12-10 18:18:56 C 21 30 24.28 +74 17 51.7 19.3 o 130
2008-09-09 09:44:26 C 04 37 35.61 +19 57 36.5 r 703
2008-09-09 09:50:47 C 04 37 34.75 +19 57 39.7 r 703
2008-09-09 10:08:26 C 04 37 32.05 +19 57 47.6 r 703
2008-09-09 10:13:35 C 04 37 31.29 +19 57 50.0 r 703
2008-09-23 08:51:00 C 03 38 42.57 +21 44 13.4 r 703
2008-09-23 09:01:28 C 03 38 40.41 +21 44 15.3 r 703
2008-09-23 09:12:00 C 03 38 38.25 +21 44 17.1 r 703
2008-09-23 09:22:35 C 03 38 35.98 +21 44 18.7 r 703
2008-09-24 08:24:51 C 03 33 50.10 +21 47 21.8 18.5 c 704
2008-09-24 08:42:13 C 03 33 46.42 +21 47 24.5 18.9 c 704
2008-09-24 08:59:34 C 03 33 42.72 +21 47 26.5 18.8 c 704
2008-09-24 09:16:55 C 03 33 39.08 +21 47 28.8 18.8 c 704
2008-09-24 09:34:16 C 03 33 35.37 +21 47 30.8 18.6 c 704
2008-09-28 10:05:40 C 03 12 51.84 +21 51 56.6 r G96
2008-09-28 10:15:19 C 03 12 49.68 +21 51 56.4 r G96
2008-09-28 10:24:56 C 03 12 47.52 +21 51 56.0 r G96
2008-09-28 10:34:34 C 03 12 45.36 +21 51 55.7 r G96
2008-10-03 06:46:15 C 02 46 50.26 +21 37 52.3 18.3 c 704
2008-10-03 07:03:44 C 02 46 46.27 +21 37 48.8 18.6 c 704
2008-10-03 07:21:22 C 02 46 42.24 +21 37 45.3 18.4 c 704
2008-10-03 07:38:57 C 02 46 38.25 +21 37 41.7 18.4 c 704
2008-10-03 07:56:28 C 02 46 34.21 +21 37 37.2 18.4 c 704
2008-10-20 23:11:30 C 01 20 46.51 +18 20 35.7 r B67
2008-10-20 23:21:04 C 01 20 44.86 +18 20 30.2 r B67
2008-10-20 23:30:32 C 01 20 43.29 +18 20 23.9 r B67
2008-10-24 06:47:11 C 01 08 21.55 +17 32 31.2 r 703
2008-10-24 07:04:05 C 01 08 19.03 +17 32 20.7 r 703
2008-10-24 07:37:58 C 01 08 13.92 +17 32 00.4 r 703
2008-10-27 05:57:40 C 00 58 27.83 +16 50 16.8 18.7 c 704