2011 WD39

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5410762020 ± 4.74e-07
Semi-major axis (a)1.3020326339 AU ± 2.02e-08
Inclination (i)59.49674092° ± 5.16e-05
Long. of Asc. Node (Ω)240.89159006° ± 5.93e-06
Arg. of Perihelion (ω)349.25994157° ± 6.45e-05
Mean Anomaly (M)354.28783319° ± 1.23e-04
Mean Motion (n)0.6634061175°/day ± 1.54e-08
Perihelion dist (q)0.59753376 AU ± 6.17e-07
Aphelion dist (Q)2.00653151 AU ± 6.18e-07
Orbital Period1.48570575 yr ± 3.45e-08
Physical Parameters
H (abs. magnitude)19.35
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.303″
Uncertainty0
Orbit TypeApollo
MOID0.411153 AU
Observations Used89
Oppositions4
Arc Total2011-2023
First Observation Used2011-11-23
Last Observation Used2023-12-07
Observations (97)
Date Type RA Dec Mag Band Observatory
2011-11-23 08:32:07 C 03 41 28.60 +24 11 14.3 r G96
2011-11-23 08:41:40 C 03 41 27.49 +24 11 00.8 r G96
2011-11-23 08:51:12 C 03 41 26.37 +24 10 46.0 r G96
2011-11-23 09:00:49 C 03 41 25.15 +24 10 33.0 r G96
2011-11-23 09:34:38 C 03 41 21.08 +24 09 43.7 r G96
2011-11-23 09:35:39 C 03 41 21.04 +24 09 42.9 r G96
2011-11-23 09:36:39 C 03 41 20.90 +24 09 41.6 r G96
2011-11-23 09:37:41 C 03 41 20.76 +24 09 39.8 r G96
2011-11-23 10:07:33 C 03 41 17.19 +24 08 56.4 o H01
2011-11-23 10:22:03 C 03 41 15.46 +24 08 35.5 o H01
2011-11-23 10:26:03 C 03 41 14.96 +24 08 30.1 r G96
2011-11-23 10:29:04 C 03 41 14.56 +24 08 25.2 r G96
2011-11-23 10:29:05 C 03 41 14.62 +24 08 25.5 o H01
2011-11-23 10:32:07 C 03 41 14.28 +24 08 21.1 r G96
2011-11-23 10:32:57 C 03 41 14.18 +24 08 19.9 o 291
2011-11-23 10:35:11 C 03 41 13.88 +24 08 16.6 r G96
2011-11-23 10:35:49 C 03 41 13.87 +24 08 15.7 o 291
2011-11-23 10:38:39 C 03 41 13.48 +24 08 12.3 o 291
2011-11-23 10:38:55 C 03 41 13.45 +24 08 11.2 o H01
2011-11-23 23:26:31 C 03 39 43.61 +23 49 47.7 t 204
2011-11-24 00:23:49 C 03 39 36.80 +23 48 25.0 v 586
2011-11-24 00:26:53 C 03 39 36.51 +23 48 21.9 v 586
2011-11-24 00:29:57 C 03 39 36.15 +23 48 17.6 v 586
2011-11-24 02:47:58 C 03 39 19.69 +23 44 56.1 t 204
2011-11-24 04:03:31 C 03 39 11.62 +23 43 08.3 o 291
2011-11-24 04:07:30 C 03 39 11.08 +23 43 03.9 r G96
2011-11-24 04:07:42 C 03 39 11.11 +23 43 03.3 o 291
2011-11-24 04:08:20 C 03 39 11.01 +23 43 02.7 r G96
2011-11-24 04:09:08 C 03 39 10.87 +23 43 01.2 r G96
2011-11-24 04:09:59 C 03 39 10.80 +23 43 00.1 r G96
2011-11-24 04:11:53 C 03 39 10.56 +23 42 57.8 o 291
2011-11-24 05:54:58 C 03 38 58.21 +23 40 27.4 u H36
2011-11-24 06:12:13 C 03 38 56.02 +23 40 02.6 u H36
2011-11-24 06:29:25 C 03 38 54.00 +23 39 39.8 u H36
2011-11-25 22:44:33 C 03 34 14.13 +22 41 08.6 u J95
2011-11-25 23:03:54 C 03 34 11.87 +22 40 40.9 u J95
2011-11-29 04:26:52 C 03 25 30.07 +20 47 02.5 o 291
2011-11-29 04:28:58 C 03 25 29.87 +20 46 59.2 o 291
2011-11-29 04:31:03 C 03 25 29.58 +20 46 56.2 o 291
2011-11-30 05:47:38 C 03 22 44.54 +20 09 40.2 r G96
2011-11-30 05:57:40 C 03 22 43.42 +20 09 25.5 r G96
2011-11-30 06:07:36 C 03 22 42.34 +20 09 10.9 r G96
2011-11-30 06:17:34 C 03 22 41.23 +20 08 56.3 r G96
2011-12-19 03:14:19 C 02 44 05.67 +09 58 06.8 o H21
2011-12-19 03:35:30 C 02 44 04.34 +09 57 42.2 o H21
2011-12-19 04:00:10 C 02 44 02.84 +09 57 13.5 o H21
2011-12-30 03:34:04 C 02 31 47.42 +05 35 18.7 o 291
2011-12-30 03:41:26 C 02 31 47.10 +05 35 12.8 o 291
2011-12-30 03:48:48 C 02 31 46.85 +05 35 07.1 o 291
2012-01-14 03:35:09 C 02 25 30.63 +01 34 08.1 o 291