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
2019-01-03 05:47:47 C 00 04 25.202 +08 46 49.85 U F51
2019-10-17 08:51:06 C 07 12 50.47 +52 36 34.8 V G96
2019-10-17 08:58:36 C 07 12 51.42 +52 36 41.7 V G96
2019-10-17 09:06:06 C 07 12 52.12 +52 36 49.3 V G96
2019-10-17 09:13:36 C 07 12 52.97 +52 36 56.3 V G96
2019-10-28 08:35:30 C 07 44 15.57 +57 32 55.1 V G96
2019-10-28 08:45:25 C 07 44 16.95 +57 33 08.3 V G96
2019-10-28 08:59:42 C 07 44 18.95 +57 33 27.0 V G96
2019-10-28 09:07:11 C 07 44 19.91 +57 33 36.6 V G96
2019-10-30 08:32:15 C 07 51 14.50 +58 36 30.8 V 703
2019-10-30 08:40:05 C 07 51 15.66 +58 36 42.6 V 703
2019-10-30 08:50:07 C 07 51 17.14 +58 36 56.3 V 703
2019-10-30 08:57:58 C 07 51 18.07 +58 37 07.8 V 703
2019-12-04 11:30:03 S 15 39 35.489 +67 22 01.45 L C51
2019-12-04 14:38:22 S 15 41 41.311 +67 10 03.47 L C51
2019-12-04 17:46:52 S 15 43 45.516 +66 57 56.30 L C51
2019-12-04 20:55:11 S 15 45 47.993 +66 45 41.80 L C51
2020-07-30 13:28:53 C 03 53 07.186 +29 19 56.40 U F51
2020-07-30 13:46:33 C 03 53 07.795 +29 20 03.09 U F51
2020-07-30 14:21:52 C 03 53 09.017 +29 20 15.13 U F51
2020-09-29 09:12:12 C 03 57 16.41 +38 12 08.6 V G96
2020-09-29 09:19:42 C 03 57 16.10 +38 12 10.9 V G96
2020-09-29 09:27:11 C 03 57 15.71 +38 12 13.1 V G96
2020-10-22 07:13:06 C 03 14 51.31 +40 32 07.9 V G96
2020-10-22 07:20:38 C 03 14 50.51 +40 32 08.5 V G96
2020-10-22 07:28:09 C 03 14 49.71 +40 32 09.5 V G96
2020-10-22 07:35:38 C 03 14 48.92 +40 32 10.0 V G96
2020-11-09 15:03:48 C 02 24 18.66 +39 45 19.7 q D29
2020-11-09 15:41:59 C 02 24 14.09 +39 45 07.7 q D29
2020-12-02 06:56:15 C 01 29 58.457 +35 17 01.43 U F51
2020-12-02 07:14:35 C 01 29 57.050 +35 16 50.72 U F51
2020-12-02 07:32:50 C 01 29 55.644 +35 16 39.99 U F51
2020-12-02 10:01:57 C 01 29 44.256 +35 15 11.36 U F51
2020-12-02 10:18:45 C 01 29 42.980 +35 15 01.38 U F51
2020-12-02 10:35:18 C 01 29 41.738 +35 14 51.30 U F51
2020-12-02 10:51:52 C 01 29 40.479 +35 14 41.45 U F51
2020-12-03 08:53:46 C 01 28 03.836 +35 01 44.72 U F51
2020-12-03 09:25:31 C 01 28 01.479 +35 01 25.78 U F51
2020-12-03 09:41:28 C 01 28 00.323 +35 01 16.31 U F51
2020-12-03 09:58:30 C 01 27 59.061 +35 01 06.15 U F51
2020-12-03 10:15:32 C 01 27 57.820 +35 00 55.99 U F51
2020-12-03 10:32:24 C 01 27 56.585 +35 00 45.82 U F51
2020-12-04 08:52:53 C 01 26 21.949 +34 47 38.28 U F51
2020-12-04 09:09:48 C 01 26 20.736 +34 47 28.02 U F51
2020-12-04 09:26:47 C 01 26 19.541 +34 47 18.10 U F51
2020-12-06 09:20:19 C 01 23 07.245 +34 19 12.89 U F51
2020-12-06 09:39:03 C 01 23 06.008 +34 19 01.67 U F51
2020-12-06 09:57:52 C 01 23 04.773 +34 18 50.53 U F51
2020-12-06 10:16:37 C 01 23 03.549 +34 18 39.27 U F51
2020-12-06 10:35:06 C 01 23 02.328 +34 18 28.34 U F51