457912 (2009 UW18)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4391831542 ± 3.00e-08
Semi-major axis (a)1.2792879417 AU ± 1.16e-09
Inclination (i)16.98590418° ± 7.06e-06
Long. of Asc. Node (Ω)227.18911314° ± 5.41e-06
Arg. of Perihelion (ω)59.84682004° ± 9.06e-06
Mean Anomaly (M)104.83335581° ± 7.05e-06
Mean Motion (n)0.6811767508°/day ± 9.29e-10
Perihelion dist (q)0.71744623 AU ± 3.84e-08
Aphelion dist (Q)1.84112966 AU ± 3.85e-08
Orbital Period1.44694645 yr ± 1.97e-09
Physical Parameters
H (abs. magnitude)19.62
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.311″
Uncertainty0
Orbit TypeApollo
MOID0.106356 AU
Observations Used299
Oppositions6
Arc Total2006-2025
First Observation Used2006-11-19
Last Observation Used2025-12-17
Observations (307)
Date Type RA Dec Mag Band Observatory
2006-11-19 03:59:09 C 22 25 49.02 +01 06 22.3 o 705
2006-11-19 04:00:20 C 22 25 49.31 +01 06 22.1 o 705
2006-11-19 04:03:55 C 22 25 50.15 +01 06 20.9 o 705
2006-11-20 04:03:57 C 22 31 35.98 +00 59 27.4 o 705
2006-11-20 04:05:09 C 22 31 36.26 +00 59 27.2 o 705
2006-11-20 04:08:46 C 22 31 37.11 +00 59 26.2 o 705
2009-10-23 08:16:48 C 05 03 27.77 +28 32 12.2 19.3 c 704
2009-10-23 08:36:02 C 05 03 24.98 +28 31 39.3 19.2 c 704
2009-10-23 08:55:15 C 05 03 22.21 +28 31 06.2 20.0 c 704
2009-10-23 09:14:42 C 05 03 19.28 +28 30 32.3 19.6 c 704
2009-10-23 09:34:01 C 05 03 16.38 +28 29 59.3 19.7 c 704
2009-10-24 07:52:31 C 05 00 06.04 +27 50 59.0 r H36
2009-10-24 07:59:09 C 05 00 05.03 +27 50 46.8 r H36
2009-10-24 08:03:36 C 05 00 04.34 +27 50 39.1 r H36
2009-10-24 09:18:31 C 04 59 53.59 +27 48 30.7 c 854
2009-10-24 09:24:02 C 04 59 52.75 +27 48 20.6 c 854
2009-10-24 09:29:33 C 04 59 52.03 +27 48 11.3 c 854
2009-10-24 09:51:09 C 04 59 48.57 +27 47 32.8 o H01
2009-10-24 09:56:31 C 04 59 47.76 +27 47 23.4 o H01
2009-10-24 10:03:19 C 04 59 46.74 +27 47 11.5 o H01
2009-10-24 10:08:19 C 04 59 45.99 +27 47 02.6 o H01
2009-10-25 08:41:23 C 04 56 32.30 +27 07 15.0 o H01
2009-10-25 08:47:21 C 04 56 31.40 +27 07 04.4 o H01
2009-10-25 09:01:31 C 04 56 29.27 +27 06 39.4 o H01
2009-10-25 09:06:42 C 04 56 28.49 +27 06 30.3 o H01
2009-10-25 11:13:17 C 04 56 09.42 +27 02 45.4 o 291
2009-10-25 11:19:14 C 04 56 08.52 +27 02 34.1 o 291
2009-10-25 11:25:15 C 04 56 07.69 +27 02 25.2 o 291
2009-10-26 01:36:11 C 04 54 05.61 +26 37 07.1 v 204
2009-10-26 01:41:57 C 04 54 04.75 +26 36 56.8 v 204
2009-10-26 03:17:59 C 04 53 50.29 +26 34 05.0 r 130
2009-10-26 03:23:46 C 04 53 49.45 +26 33 54.5 r 130
2009-10-26 03:28:06 C 04 53 48.81 +26 33 47.2 r 130
2009-10-26 03:34:02 C 04 53 47.97 +26 33 35.8 r 130
2009-10-26 04:24:57 C 04 53 40.32 +26 32 04.9 v 204
2009-10-26 05:39:46 C 04 53 31.63 +26 29 52.6 o 291
2009-10-26 05:45:46 C 04 53 30.75 +26 29 43.1 o 291
2009-10-26 05:51:38 C 04 53 29.87 +26 29 32.9 o 291
2009-10-26 08:42:00 C 04 53 04.41 +26 24 32.7 r 703
2009-10-26 08:49:00 C 04 53 03.40 +26 24 20.2 r 703
2009-10-26 08:55:48 C 04 53 02.22 +26 24 08.4 r 703
2009-10-26 09:02:45 C 04 53 01.28 +26 23 56.2 r 703
2009-10-29 06:53:53 C 04 42 52.78 +24 18 06.4 o 291
2009-10-29 06:59:34 C 04 42 51.94 +24 17 57.0 o 291
2009-10-29 07:05:26 C 04 42 51.04 +24 17 46.8 o 291
2009-10-30 09:24:01 C 04 39 00.54 +23 30 04.5 c 926
2009-10-30 09:26:34 C 04 39 00.17 +23 29 59.7 c 926
2009-10-30 09:29:07 C 04 38 59.74 +23 29 54.8 c 926
2009-11-01 06:14:11 C 04 32 30.89 +22 08 35.1 o H55
2009-11-01 06:16:17 C 04 32 30.57 +22 08 31.3 o H55