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
2021-11-01 07:18:02 C 01 04 28.631 +19 53 08.88 U F52
2021-11-01 07:36:36 C 01 04 26.523 +19 52 58.49 U F52
2021-11-01 07:55:02 C 01 04 24.430 +19 52 48.19 U F52
2021-11-03 05:17:29 C 00 59 31.93 +19 27 27.5 V 703
2021-11-03 05:25:03 C 00 59 31.07 +19 27 23.3 V 703
2021-11-03 05:32:37 C 00 59 30.23 +19 27 19.5 V 703
2021-11-03 05:40:10 C 00 59 29.50 +19 27 14.8 V 703
2021-11-06 12:38:07 C 00 51 47.91 +18 44 33.0 V D29
2021-11-06 13:03:34 C 00 51 45.54 +18 44 19.8 V D29
2021-11-06 13:29:01 C 00 51 43.16 +18 44 06.2 V D29
2021-11-07 04:45:24 C 00 50 20.73 +18 36 06.1 V G96
2021-11-07 04:52:59 C 00 50 20.05 +18 36 02.2 V G96
2021-11-07 05:00:34 C 00 50 19.36 +18 35 58.5 V G96
2021-11-07 05:08:08 C 00 50 18.66 +18 35 54.3 V G96
2021-11-08 05:18:01 C 00 48 13.103 +18 23 27.69 U F51
2021-11-08 05:33:49 C 00 48 11.729 +18 23 19.68 U F51
2021-11-08 05:49:40 C 00 48 10.351 +18 23 11.69 U F51
2021-11-08 06:05:32 C 00 48 08.977 +18 23 03.71 U F51
2021-11-08 11:54:49 C 00 47 39.485 +18 20 11.69 V P07
2021-11-08 13:07:11 C 00 47 33.238 +18 19 35.47 V P07
2021-11-08 14:22:18 C 00 47 26.782 +18 18 57.02 V P07
2021-11-08 15:24:21 C 00 47 21.468 +18 18 25.20 V P07
2021-11-12 10:47:35 C 00 40 21.28 +17 33 57.7 V D29
2021-11-12 11:06:41 C 00 40 19.81 +17 33 48.5 V D29
2021-11-12 11:25:46 C 00 40 18.50 +17 33 40.0 V D29
2022-10-20 11:28:54 C 10 24 41.692 +40 32 20.08 V 703
2022-10-20 11:36:10 C 10 24 43.765 +40 32 13.49 V 703
2022-10-20 11:43:26 C 10 24 45.954 +40 32 07.12 V 703
2022-10-20 11:50:42 C 10 24 48.053 +40 31 58.44 V 703
2022-10-31 12:05:46 C 11 48 23.839 +33 12 45.22 V G96
2022-10-31 12:14:08 C 11 48 26.600 +33 12 25.42 V G96
2022-10-31 12:22:29 C 11 48 29.344 +33 12 05.65 V G96
2022-10-31 12:30:50 C 11 48 32.072 +33 11 46.07 V G96
2023-10-17 17:35:41 C 03 58 41.08 +44 10 55.0 q 867
2023-10-17 17:39:42 C 03 58 40.70 +44 10 56.8 q 867
2023-10-17 17:52:35 C 03 58 39.61 +44 11 01.3 q 867
2023-10-17 18:01:08 C 03 58 38.88 +44 11 04.9 q 867
2023-10-18 16:38:29 C 03 56 44.26 +44 19 38.2 q 867
2023-10-18 16:46:33 C 03 56 43.60 +44 19 41.3 q 867
2023-10-18 16:54:38 C 03 56 42.93 +44 19 43.7 q 867
2023-10-18 16:58:39 C 03 56 42.52 +44 19 45.4 q 867
2023-10-25 09:56:36 C 03 41 11.428 +45 12 20.70 X F52
2023-10-25 10:05:03 C 03 41 10.517 +45 12 23.12 X F52
2023-10-25 10:13:42 C 03 41 09.587 +45 12 25.55 X F52
2023-12-06 07:00:01 C 01 35 11.036 +40 52 25.68 V V00
2023-12-06 07:07:57 C 01 35 10.298 +40 52 20.14 V V00
2023-12-06 07:15:53 C 01 35 09.517 +40 52 14.41 V V00
2023-12-06 07:23:48 C 01 35 08.761 +40 52 08.69 V V00
2023-12-12 04:42:48 C 01 23 07.138 +39 11 39.84 V G96
2023-12-12 04:50:59 C 01 23 06.536 +39 11 33.76 V G96