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
2025-01-19 11:34:57 C 09 30 19.886 +16 23 15.43 V G96
2025-01-19 11:42:21 C 09 30 19.494 +16 23 22.60 V G96
2025-01-19 11:49:46 C 09 30 19.105 +16 23 29.76 V G96
2025-01-19 11:57:11 C 09 30 18.673 +16 23 35.95 V G96
2025-01-19 13:23:51 C 09 30 14.628 +16 24 58.74 X F51
2025-01-19 13:45:25 C 09 30 13.516 +16 25 18.98 X F51
2025-01-19 14:06:52 C 09 30 12.407 +16 25 38.47 X F51
2025-01-19 14:28:20 C 09 30 11.293 +16 25 58.38 X F51
2025-01-24 08:48:55 C 09 24 21.114 +18 10 59.20 V G96
2025-01-24 08:56:23 C 09 24 20.711 +18 11 06.29 V G96
2025-01-24 09:03:50 C 09 24 20.286 +18 11 12.77 V G96
2025-01-24 09:11:18 C 09 24 19.904 +18 11 19.32 V G96
2025-02-02 07:29:00 C 09 12 51.001 +21 16 07.18 V G96
2025-02-02 07:37:08 C 09 12 50.519 +21 16 13.76 V G96
2025-02-02 07:45:15 C 09 12 50.058 +21 16 20.39 V G96
2025-03-01 06:03:18 C 08 46 27.245 +27 28 41.57 X F52
2025-03-01 06:19:49 C 08 46 26.839 +27 28 47.11 X F52
2025-03-01 06:36:23 C 08 46 26.434 +27 28 53.03 X F52