2009 WM139

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5021821591 ± 2.80e-08
Semi-major axis (a)2.3903522642 AU ± 8.76e-09
Inclination (i)20.79204652° ± 6.69e-06
Long. of Asc. Node (Ω)127.24018516° ± 9.28e-06
Arg. of Perihelion (ω)265.54737926° ± 1.70e-05
Mean Anomaly (M)121.00112578° ± 1.16e-05
Mean Motion (n)0.2666977890°/day ± 1.47e-09
Perihelion dist (q)1.18996000 AU ± 6.71e-08
Aphelion dist (Q)3.59074453 AU ± 6.82e-08
Orbital Period3.69566725 yr ± 2.03e-08
Physical Parameters
H (abs. magnitude)18.81
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.205″
Uncertainty0
Orbit TypeAmor
MOID0.405991 AU
Observations Used114
Oppositions12
Arc Total2009-2025
First Observation Used2009-07-14
Last Observation Used2025-03-01
Observations (118)
Date Type RA Dec Mag Band Observatory
2009-07-14 10:04:17 C 22 00 33.11 -12 15 23.0 o 691
2009-07-14 10:29:45 C 22 00 33.63 -12 15 43.2 o 691
2009-07-14 10:55:09 C 22 00 34.18 -12 16 03.4 o 691
2009-08-15 13:37:24 C 22 08 11.40 -29 53 58.3 r E12
2009-08-15 13:47:33 C 22 08 11.32 -29 54 16.9 r E12
2009-08-15 13:57:55 C 22 08 11.25 -29 54 37.1 r E12
2009-08-15 15:39:55 C 22 08 10.39 -29 57 50.7 r E12
2009-08-15 15:42:58 C 22 08 10.32 -29 57 55.6 r E12
2009-08-15 15:44:28 C 22 08 10.32 -29 57 59.0 r E12
2009-08-15 15:45:59 C 22 08 10.28 -29 58 02.1 r E12
2009-08-15 16:40:36 C 22 08 09.92 -29 59 44.6 r E12
2009-08-15 16:48:22 C 22 08 09.85 -30 00 00.6 r E12
2009-08-15 16:56:04 C 22 08 09.78 -30 00 14.0 r E12
2009-08-15 17:03:48 C 22 08 09.74 -30 00 28.9 r E12
2009-11-27 12:17:32 C 01 20 18.14 -49 02 22.9 r E12
2009-11-27 12:38:17 C 01 20 20.85 -49 01 50.4 r E12
2009-11-27 12:52:08 C 01 20 22.47 -49 01 27.7 r E12
2009-11-27 13:08:02 C 01 20 24.50 -49 01 02.5 r E12
2009-11-27 14:33:35 C 01 20 35.23 -48 58 45.0 r E12
2009-11-27 14:38:40 C 01 20 35.86 -48 58 36.9 r E12
2009-11-27 16:02:11 C 01 20 46.55 -48 56 21.8 r E12
2009-11-27 16:07:17 C 01 20 47.21 -48 56 13.2 r E12
2009-11-28 11:57:39 C 01 23 22.54 -48 24 43.4 r E12
2009-11-28 12:04:21 C 01 23 23.34 -48 24 32.5 r E12
2009-11-28 15:30:25 C 01 23 49.10 -48 18 54.3 r E12
2009-11-28 15:37:10 C 01 23 49.89 -48 18 43.5 r E12
2009-11-29 12:30:43 C 01 26 31.59 -47 44 45.4 r E12
2009-11-29 12:37:22 C 01 26 32.41 -47 44 34.7 r E12
2009-12-05 11:03:42 C 01 44 14.49 -43 35 51.3 r E12
2009-12-05 11:09:51 C 01 44 15.21 -43 35 39.9 r E12
2009-12-05 11:16:31 C 01 44 15.99 -43 35 27.8 r E12
2009-12-05 11:23:19 C 01 44 16.76 -43 35 15.0 r E12
2009-12-22 11:05:40 C 02 30 01.65 -29 36 01.2 o 474
2009-12-22 11:07:29 C 02 30 01.85 -29 35 57.0 o 474
2009-12-22 11:09:29 C 02 30 02.05 -29 35 52.6 o 474
2010-01-03 02:17:00 C 02 58 33.28 -19 14 49.2 o H21
2010-01-03 02:23:54 C 02 58 33.93 -19 14 33.3 o H21
2010-01-03 02:31:02 C 02 58 34.63 -19 14 18.1 o H21
2010-01-04 03:10:35 C 03 01 01.26 -18 20 00.7 o H21
2010-01-04 03:18:48 C 03 01 02.03 -18 19 42.6 o H21
2010-01-14 02:30:15 C 03 24 21.18 -09 52 23.7 o H21
2010-01-14 02:36:23 C 03 24 21.76 -09 52 11.2 o H21
2010-01-14 02:43:46 C 03 24 22.45 -09 51 55.9 o H21
2013-12-31 02:25:49 C 10 48 11.96 +11 30 00.2 V C95
2013-12-31 02:55:49 C 10 48 11.95 +11 30 15.8 V C95
2014-01-03 10:04:29 C 10 48 06.38 +12 15 25.3 u H21
2014-01-03 10:20:43 C 10 48 06.28 +12 15 35.1 u H21
2014-01-03 10:38:53 C 10 48 06.18 +12 15 45.8 u H21
2014-01-03 10:56:19 C 10 48 06.10 +12 15 55.9 u H21
2014-01-04 08:46:14 C 10 48 00.18 +12 28 57.5 u H21