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
2009-11-01 06:18:22 C 04 32 30.26 +22 08 27.6 o H55
2009-11-01 06:20:27 C 04 32 29.96 +22 08 24.0 o H55
2009-11-01 06:22:47 C 04 32 29.60 +22 08 19.6 o H55
2009-11-02 04:49:36 C 04 29 16.22 +21 27 39.0 r 448
2009-11-02 05:02:49 C 04 29 14.33 +21 27 14.6 r 448
2009-11-02 05:15:40 C 04 29 12.48 +21 26 51.9 r 448
2009-11-06 05:26:45 C 04 15 36.46 +18 35 02.6 o H21
2009-11-06 05:29:49 C 04 15 36.01 +18 34 57.3 o H21
2009-11-06 05:33:11 C 04 15 35.55 +18 34 51.0 o H21
2009-11-08 06:53:09 C 04 08 51.79 +17 09 24.2 r 703
2009-11-08 07:01:54 C 04 08 50.56 +17 09 09.5 r 703
2009-11-08 07:10:37 C 04 08 49.38 +17 08 55.4 r 703
2009-11-08 07:19:13 C 04 08 48.15 +17 08 40.8 r 703
2009-11-09 09:15:46 C 04 05 20.22 +16 24 44.9 r 703
2009-11-09 09:25:15 C 04 05 18.85 +16 24 29.2 r 703
2009-11-09 09:34:24 C 04 05 17.70 +16 24 14.0 r 703
2009-11-09 09:43:51 C 04 05 16.40 +16 23 58.5 r 703
2009-11-11 01:03:36 C 04 00 10.06 +15 18 53.5 w 160
2009-11-11 01:07:28 C 04 00 09.52 +15 18 48.1 w 160
2009-11-11 01:11:22 C 04 00 09.02 +15 18 41.0 w 160
2009-11-15 08:02:11 C 03 47 37.06 +12 39 29.8 r 703
2009-11-15 08:10:28 C 03 47 35.98 +12 39 17.6 r 703
2009-11-15 08:18:42 C 03 47 35.01 +12 39 05.5 r 703
2009-11-15 08:27:03 C 03 47 33.93 +12 38 53.4 r 703
2009-11-18 07:42:29 C 03 39 40.71 +10 59 07.5 r G96
2009-11-18 07:54:39 C 03 39 39.34 +10 58 51.5 r G96
2009-11-18 08:07:05 C 03 39 37.98 +10 58 34.7 r G96
2009-11-18 08:19:35 C 03 39 36.57 +10 58 17.7 r G96
2009-11-19 06:10:04 C 03 37 20.54 +10 29 37.5 19.8 c 704
2009-11-19 06:27:56 C 03 37 18.65 +10 29 15.2 19.5 c 704
2009-11-19 06:45:39 C 03 37 16.74 +10 28 52.3 19.5 c 704
2009-11-19 07:03:23 C 03 37 14.84 +10 28 29.2 19.6 c 704
2010-01-06 01:09:02 C 03 01 21.61 +02 17 08.4 o H21
2010-01-06 01:25:46 C 03 01 21.92 +02 17 10.3 o H21
2010-01-06 01:47:59 C 03 01 22.34 +02 17 12.9 o H21
2012-03-07 06:10:01 C 10 33 22.25 -45 55 04.5 o 807
2012-03-07 06:22:30 C 10 33 20.63 -45 55 11.7 o 807
2012-03-07 06:34:15 C 10 33 19.07 -45 55 18.4 o 807
2012-04-07 03:17:34 C 08 04 25.16 -42 06 57.1 o 807
2012-04-07 03:25:24 C 08 04 22.95 -42 06 42.4 o 807
2012-04-07 03:33:13 C 08 04 20.79 -42 06 27.2 o 807
2012-04-07 03:40:57 C 08 04 18.62 -42 06 12.6 o 807
2012-04-07 23:28:43 C 07 58 55.73 -41 29 10.5 o 807
2012-04-07 23:41:44 C 07 58 51.95 -41 28 45.0 o 807
2012-04-08 00:10:23 C 07 58 43.63 -41 27 48.8 o 807
2012-12-03 05:52:20 C 05 45 11.05 +03 07 18.9 u 807
2012-12-03 05:58:07 C 05 45 10.48 +03 07 15.3 u 807
2012-12-03 06:03:55 C 05 45 09.90 +03 07 11.9 u 807
2012-12-03 06:09:42 C 05 45 09.33 +03 07 08.5 u 807
2012-12-03 06:15:29 C 05 45 08.75 +03 07 05.1 u 807