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
2021-10-13 06:00:46 C 02 10 23.34 +23 49 27.8 V G96
2021-10-13 06:08:16 C 02 10 22.04 +23 49 25.1 V G96
2021-10-13 06:15:46 C 02 10 20.77 +23 49 22.3 V G96
2021-10-13 07:04:12 C 02 10 12.42 +23 49 04.1 V 703
2021-10-13 07:11:47 C 02 10 11.15 +23 49 02.2 V 703
2021-10-13 07:26:57 C 02 10 08.53 +23 48 55.7 V 703
2021-10-14 08:19:35 C 02 05 57.50 +23 39 12.6 V T08
2021-10-14 09:15:20 C 02 05 48.03 +23 38 51.0 V T08
2021-10-14 09:25:09 C 02 05 46.36 +23 38 47.1 V T08
2021-10-14 09:56:30 C 02 05 41.02 +23 38 34.5 V T08
2021-10-14 10:02:34 C 02 05 39.98 +23 38 31.9 V T08
2021-10-16 05:42:55 C 01 58 25.60 +23 19 56.5 V 703
2021-10-16 05:50:37 C 01 58 24.29 +23 19 53.1 V 703
2021-10-16 05:58:18 C 01 58 23.01 +23 19 49.4 V 703
2021-10-16 06:06:00 C 01 58 21.77 +23 19 47.5 V 703
2021-10-24 08:07:44 C 01 28 36.13 +21 41 15.4 V 703
2021-10-24 08:15:41 C 01 28 34.98 +21 41 09.7 V 703
2021-10-24 08:23:37 C 01 28 33.84 +21 41 05.2 V 703
2021-10-24 08:31:34 C 01 28 32.72 +21 41 01.9 V 703
2021-10-24 10:56:42 C 01 28 12.379 +21 39 43.35 U F52
2021-10-24 11:15:14 C 01 28 09.722 +21 39 32.94 U F52
2021-10-24 11:52:33 C 01 28 04.412 +21 39 11.96 U F52
2021-10-26 10:28:00 C 01 21 42.02 +21 13 05.4 V T08
2021-10-26 10:35:45 C 01 21 40.98 +21 13 01.5 V T08
2021-10-26 10:41:03 C 01 21 40.24 +21 12 57.9 V T08
2021-10-26 10:57:44 C 01 21 37.92 +21 12 49.1 V T08
2021-10-27 04:28:56 C 01 19 19.83 +21 02 51.6 V G96
2021-10-27 04:36:30 C 01 19 18.82 +21 02 47.4 V G96
2021-10-27 04:44:06 C 01 19 17.82 +21 02 43.0 V G96
2021-10-27 04:51:41 C 01 19 16.82 +21 02 38.8 V G96
2021-10-27 06:29:28 C 01 19 03.82 +21 01 42.5 V 703
2021-10-27 06:37:15 C 01 19 02.80 +21 01 38.8 V 703
2021-10-27 06:44:58 C 01 19 01.75 +21 01 34.3 V 703
2021-10-27 06:52:41 C 01 19 00.75 +21 01 30.1 V 703
2021-10-30 05:17:38 C 01 10 14.05 +20 21 25.5 U I41
2021-10-30 05:18:59 C 01 10 13.89 +20 21 24.7 U I41
2021-10-30 06:46:52 C 01 10 03.23 +20 20 34.9 U I41
2021-10-30 06:48:14 C 01 10 03.06 +20 20 34.0 U I41
2021-10-30 07:07:33 C 01 10 00.72 +20 20 23.0 U I41
2021-10-30 20:54:31 C 01 08 23.44 +20 12 31.0 V K88
2021-10-30 20:57:21 C 01 08 23.17 +20 12 29.7 V K88
2021-10-30 21:00:12 C 01 08 22.81 +20 12 28.0 V K88
2021-10-31 05:41:04 C 01 07 22.40 +20 07 34.7 V 703
2021-10-31 05:48:41 C 01 07 21.52 +20 07 30.7 V 703
2021-10-31 05:56:18 C 01 07 20.61 +20 07 26.5 V 703
2021-10-31 06:03:55 C 01 07 19.76 +20 07 21.8 V 703
2021-10-31 20:58:19 C 01 05 37.79 +19 58 54.3 V K88
2021-10-31 21:01:10 C 01 05 37.49 +19 58 52.7 V K88
2021-10-31 21:04:01 C 01 05 37.18 +19 58 50.9 V K88
2021-11-01 06:59:40 C 01 04 30.717 +19 53 19.10 U F52