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
1982-11-06 09:59:32 23 32 24.93 +01 48 23.8 o 260
1982-11-06 10:59:32 23 32 23.33 +01 48 37.3 o 260
2001-09-22 10:54:42 C 03 30 25.71 +30 04 19.5 o 644
2001-09-22 11:53:09 C 03 30 21.37 +30 04 33.3 o 644
2001-10-13 11:43:12 C 02 41 13.96 +30 47 46.2 o 644
2001-10-13 12:03:24 C 02 41 11.55 +30 47 44.4 o 644
2001-10-13 12:27:11 C 02 41 08.67 +30 47 41.3 o 644
2001-10-27 06:43:05 C 02 01 35.38 +29 27 32.1 o 644
2001-10-27 06:58:03 C 02 01 33.59 +29 27 26.5 o 644
2001-10-27 07:12:54 C 02 01 31.87 +29 27 21.5 o 644
2002-11-30 06:40:31 C 21 36 32.87 -17 17 48.3 V 608
2002-11-30 06:55:16 C 21 36 35.84 -17 17 24.2 V 608
2002-11-30 07:10:48 C 21 36 38.87 -17 16 58.9 V 608
2005-10-22 05:02:12 C 22 53 57.37 -12 37 09.7 r 703
2005-10-22 05:16:47 C 22 53 57.48 -12 36 33.6 r 703
2005-10-22 05:31:19 C 22 53 57.58 -12 35 56.8 r 703
2005-10-22 05:45:50 C 22 53 57.66 -12 35 20.1 r 703
2005-10-22 13:36:19 C 22 54 03.041 -12 15 32.06 r 413
2005-10-22 13:41:43 C 22 54 03.073 -12 15 18.83 r 413
2005-10-22 22:20:37 C 22 54 10.25 -11 55 18.8 o J77
2005-10-22 22:21:08 C 22 54 10.29 -11 55 18.3 r J95
2005-10-22 22:25:00 C 22 54 10.33 -11 55 09.3 r J95
2005-10-22 22:28:50 C 22 54 10.36 -11 55 00.4 r J95
2005-10-22 22:29:18 C 22 54 10.38 -11 54 58.7 o J77
2005-10-22 22:38:00 C 22 54 10.42 -11 54 38.3 o J77
2005-10-22 22:46:42 C 22 54 10.50 -11 54 18.7 o J77
2005-10-22 22:55:23 C 22 54 10.56 -11 53 58.4 o J77
2005-10-22 23:04:04 C 22 54 10.63 -11 53 37.6 o J77
2005-10-22 23:13:06 C 22 54 10.77 -11 53 17.6 o J77
2005-10-22 23:38:23 C 22 54 11.69 -11 51 53.0 r I77
2005-10-22 23:47:13 C 22 54 11.75 -11 51 32.6 r I77
2005-10-22 23:56:01 C 22 54 11.81 -11 51 12.3 r I77
2005-10-23 02:54:06 C 22 54 14.72 -11 44 43.9 r 703
2005-10-23 02:56:53 C 22 54 14.76 -11 44 37.5 r 703
2005-10-23 02:59:39 C 22 54 14.76 -11 44 31.6 r 703
2005-10-23 03:02:24 C 22 54 14.76 -11 44 24.9 r 703
2005-10-23 03:20:50 C 22 54 15.08 -11 43 43.2 c 673
2005-10-23 03:28:09 C 22 54 14.84 -11 43 26.7 o H06
2005-10-23 03:29:39 C 22 54 15.15 -11 43 23.3 c 673
2005-10-23 03:31:00 C 22 54 14.63 -11 43 21.8 r 734
2005-10-23 03:32:15 C 22 54 14.99 -11 43 16.3 c 651
2005-10-23 03:33:23 C 22 54 14.87 -11 43 14.4 o H06
2005-10-23 03:33:53 C 22 54 14.98 -11 43 12.7 c 651
2005-10-23 03:35:00 C 22 54 15.18 -11 43 11.1 c 673
2005-10-23 03:35:20 C 22 54 14.66 -11 43 12.2 r 734
2005-10-23 03:37:09 C 22 54 15.00 -11 43 05.2 c 651
2005-10-23 03:37:48 C 22 54 14.68 -11 43 06.8 r 734
2005-10-23 03:38:39 C 22 54 14.89 -11 43 02.8 o H06
2005-10-23 03:40:15 C 22 54 14.70 -11 43 00.9 r 734
2005-10-23 03:43:30 C 22 54 15.25 -11 42 51.7 c 673