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
2014-01-04 09:13:51 C 10 47 59.98 +12 29 14.1 u H21
2014-01-04 09:44:17 C 10 47 59.72 +12 29 32.9 u H21
2020-05-31 07:46:40 C 20 19 28.66 -05 50 44.7 u H21
2020-05-31 07:55:57 C 20 19 28.74 -05 50 44.9 u H21
2020-05-31 08:04:23 C 20 19 28.83 -05 50 45.0 u H21
2020-06-22 11:47:56 C 20 19 23.699 -07 05 13.33 U F51
2020-06-22 12:07:17 C 20 19 23.364 -07 05 18.86 U F51
2020-06-22 12:26:37 C 20 19 23.038 -07 05 24.54 U F51
2020-07-14 06:47:31 C 20 03 38.86 -11 17 29.3 V W16
2020-07-14 07:13:03 C 20 03 37.68 -11 17 46.5 V W16
2020-07-14 07:37:45 C 20 03 36.48 -11 18 03.8 V W16
2020-08-22 06:30:51 C 19 15 28.714 -25 31 46.66 U F51
2020-08-22 06:44:51 C 19 15 28.152 -25 31 59.97 U F51
2020-08-22 06:58:50 C 19 15 27.593 -25 32 13.27 U F51
2020-09-13 05:55:27 C 19 09 12.602 -32 52 53.20 U F51
2020-09-13 06:09:48 C 19 09 12.781 -32 53 03.32 U F51
2020-09-13 06:24:09 C 19 09 12.944 -32 53 13.54 U F51
2024-10-01 14:31:08 C 07 51 34.664 +01 23 51.33 X F51
2024-10-01 14:42:26 C 07 51 35.892 +01 23 50.63 X F51
2024-10-01 14:53:41 C 07 51 37.142 +01 23 49.57 X F51
2024-10-01 15:04:57 C 07 51 38.394 +01 23 48.96 X F51
2024-11-27 14:31:59 C 09 38 40.786 +02 26 28.24 X F51
2024-11-27 14:50:27 C 09 38 41.478 +02 26 33.54 X F51
2024-11-27 15:08:59 C 09 38 42.179 +02 26 38.67 X F51
2024-11-27 15:27:38 C 09 38 42.888 +02 26 43.86 X F51
2024-12-04 12:04:49 C 09 44 24.396 +03 19 43.28 V V00
2024-12-04 12:12:55 C 09 44 24.616 +03 19 46.24 V V00
2024-12-04 12:20:59 C 09 44 24.824 +03 19 49.22 V V00
2024-12-04 12:29:04 C 09 44 25.044 +03 19 52.32 V V00
2024-12-11 13:58:37 C 09 48 15.292 +04 31 48.33 X F52
2024-12-11 14:14:39 C 09 48 15.500 +04 31 55.95 X F52
2024-12-11 14:30:54 C 09 48 15.743 +04 32 03.62 X F52
2024-12-11 14:46:52 C 09 48 15.949 +04 32 11.41 X F52
2024-12-28 11:42:26 C 09 48 27.235 +08 42 19.63 X F52
2024-12-28 12:00:52 C 09 48 26.906 +08 42 33.32 X F52
2024-12-28 12:19:19 C 09 48 26.564 +08 42 47.35 X F52
2024-12-30 12:04:36 C 09 47 35.545 +09 19 30.14 V V00
2024-12-30 12:15:32 C 09 47 35.315 +09 19 38.78 V V00
2024-12-30 12:23:41 C 09 47 35.138 +09 19 45.16 V V00
2024-12-30 12:31:46 C 09 47 34.962 +09 19 51.46 V V00
2025-01-06 09:49:17 C 09 43 18.793 +11 36 59.98 V G96
2025-01-06 09:55:27 C 09 43 18.563 +11 37 05.38 V G96
2025-01-06 10:01:35 C 09 43 18.361 +11 37 11.03 V G96
2025-01-06 10:07:43 C 09 43 18.138 +11 37 16.25 V G96
2025-01-06 10:31:24 C 09 43 17.781 +11 37 38.32 X F51
2025-01-06 10:47:04 C 09 43 17.249 +11 37 51.93 X F51
2025-01-06 11:02:51 C 09 43 16.718 +11 38 05.67 X F51
2025-01-06 11:18:33 C 09 43 16.172 +11 38 19.53 X F51
2025-01-07 19:49:07 C 09 42 11.18 +12 06 49.4 V D29
2025-01-07 20:29:50 C 09 42 09.70 +12 07 25.2 V D29