138859 (2000 WN63)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5314892165 ± 2.53e-08
Semi-major axis (a)1.5731873110 AU ± 2.19e-09
Inclination (i)13.15514140° ± 3.83e-06
Long. of Asc. Node (Ω)55.86017010° ± 1.45e-05
Arg. of Perihelion (ω)144.43452672° ± 1.51e-05
Mean Anomaly (M)145.21848952° ± 3.79e-06
Mean Motion (n)0.4995070520°/day ± 1.04e-09
Perihelion dist (q)0.73705522 AU ± 3.98e-08
Aphelion dist (Q)2.40931940 AU ± 3.99e-08
Orbital Period1.97319793 yr ± 4.12e-09
Physical Parameters
H (abs. magnitude)18.98
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.267″
Uncertainty0
Orbit TypeApollo
MOID0.141493 AU
Observations Used287
Oppositions12
Arc Total2000-2025
First Observation Used2000-11-27
Last Observation Used2025-09-29
Observations (324)
Date Type RA Dec Mag Band Observatory
2014-12-01 11:48:38 C 06 50 07.878 +37 09 06.94 L F51
2014-12-01 12:25:50 C 06 50 07.015 +37 09 49.33 L F51
2014-12-03 11:45:45 C 06 49 06.200 +38 05 16.31 L F51
2014-12-03 11:46:43 C 06 49 06.162 +38 05 17.51 L F51
2014-12-03 12:04:36 C 06 49 05.629 +38 05 39.13 L F51
2014-12-03 12:05:35 C 06 49 05.598 +38 05 40.37 L F51
2014-12-03 12:23:26 C 06 49 05.062 +38 06 01.86 L F51
2014-12-03 12:24:24 C 06 49 05.031 +38 06 03.12 L F51
2014-12-03 12:42:12 C 06 49 04.498 +38 06 24.54 L F51
2014-12-03 12:43:09 C 06 49 04.466 +38 06 25.72 L F51
2014-12-21 01:10:13 C 06 20 25.54 +48 49 14.3 t 130
2014-12-21 01:12:23 C 06 20 25.26 +48 49 17.8 t 130
2014-12-21 01:14:32 C 06 20 24.95 +48 49 21.7 t 130
2014-12-21 01:16:40 C 06 20 24.67 +48 49 25.9 t 130
2014-12-24 03:54:34 C 06 09 52.55 +51 08 05.4 o H15
2014-12-24 04:10:48 C 06 09 49.92 +51 08 36.3 o H15
2014-12-24 04:26:23 C 06 09 47.34 +51 09 05.9 o H15
2014-12-30 23:20:36 C 05 37 35.93 +56 18 06.8 q I15
2014-12-30 23:24:50 C 05 37 34.93 +56 18 14.9 q I15
2014-12-30 23:29:05 C 05 37 33.85 +56 18 23.2 q I15
2015-01-29 04:29:38 S 00 48 10.788 +62 40 04.69 L C51
2015-01-29 07:38:52 S 00 46 54.770 +62 36 12.49 L C51
2015-01-29 09:13:29 S 00 46 16.867 +62 34 16.36 L C51
2016-11-10 12:42:22 C 07 24 42.422 +30 35 28.49 L F51
2016-11-10 12:59:10 C 07 24 43.454 +30 35 38.08 L F51
2016-11-10 13:15:57 C 07 24 44.477 +30 35 47.62 L F51
2016-11-10 13:32:52 C 07 24 45.510 +30 35 57.17 L F51
2016-12-05 05:41:56 C 08 02 54.39 +39 22 18.7 R G45
2016-12-05 05:48:45 C 08 02 54.86 +39 22 28.1 R G45
2016-12-05 05:55:33 C 08 02 55.30 +39 22 37.6 R G45
2016-12-05 06:02:30 C 08 02 55.76 +39 22 47.5 R G45
2016-12-05 06:07:12 C 08 02 56.06 +39 22 53.4 R G45
2016-12-09 05:37:03 C 08 09 36.49 +41 41 25.2 R G45
2016-12-09 05:37:09 C 08 09 36.48 +41 41 25.3 R G45
2016-12-09 05:43:37 C 08 09 36.95 +41 41 35.5 R G45
2016-12-09 05:44:03 C 08 09 37.01 +41 41 36.4 R G45
2016-12-09 05:50:20 C 08 09 37.41 +41 41 45.8 R G45
2016-12-09 05:50:52 C 08 09 37.46 +41 41 47.1 R G45
2016-12-09 05:57:16 C 08 09 37.91 +41 41 57.5 R G45
2016-12-09 05:57:48 C 08 09 37.94 +41 41 58.2 R G45
2016-12-09 06:04:20 C 08 09 38.38 +41 42 08.4 R G45
2016-12-09 06:04:37 C 08 09 38.40 +41 42 09.0 R G45
2016-12-18 11:29:53 C 08 27 33.87 +48 35 53.1 q G96
2016-12-18 11:44:59 C 08 27 35.14 +48 36 26.2 q G96
2016-12-18 12:00:34 C 08 27 36.51 +48 37 00.0 q G96
2016-12-20 11:32:59 C 08 32 18.87 +50 26 13.1 L T05
2016-12-20 11:54:35 C 08 32 21.02 +50 27 04.5 L T05
2016-12-20 12:13:56 C 08 32 22.70 +50 27 51.4 L T05
2016-12-20 12:24:27 C 08 32 23.70 +50 28 17.3 L T05
2016-12-20 12:31:13 C 08 32 24.25 +50 28 33.1 L T05