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
2006-11-10 07:05:52 C 04 42 48.13 +24 02 35.7 c 691
2006-11-10 07:30:56 C 04 42 46.59 +24 02 41.3 c 691
2006-11-14 07:45:14 C 04 36 11.14 +24 26 09.5 c 691
2006-11-14 08:10:20 C 04 36 09.26 +24 26 15.0 c 691
2006-11-14 08:35:26 C 04 36 07.34 +24 26 20.7 c 691
2006-11-18 05:12:47 C 04 28 50.86 +24 48 14.9 c 691
2006-11-18 05:37:51 C 04 28 48.71 +24 48 20.8 c 691
2006-11-18 06:02:54 C 04 28 46.57 +24 48 27.0 c 691
2006-11-22 05:00:11 C 04 20 25.28 +25 09 36.3 c 691
2006-11-22 05:25:15 C 04 20 22.98 +25 09 41.7 c 691
2007-07-20 15:17:15 C 23 14 29.04 -58 41 15.0 r E12
2007-07-20 15:33:08 C 23 14 24.75 -58 41 21.7 r E12
2007-07-20 15:49:00 C 23 14 20.54 -58 41 27.1 r E12
2007-07-20 16:04:50 C 23 14 16.33 -58 41 33.0 r E12
2008-11-19 07:34:33 C 04 54 40.10 +27 23 53.9 o 691
2008-11-19 07:59:57 C 04 54 38.05 +27 24 02.9 o 691
2008-11-19 08:25:22 C 04 54 36.00 +27 24 12.6 o 691
2008-12-04 06:48:10 C 04 19 21.50 +29 28 04.0 r G96
2008-12-04 07:02:16 C 04 19 19.84 +29 28 08.2 r G96
2008-12-04 07:30:24 C 04 19 16.50 +29 28 16.5 r G96
2008-12-05 04:41:22 C 04 16 49.58 +29 34 20.4 r G96
2008-12-05 04:55:04 C 04 16 47.96 +29 34 24.4 r G96
2008-12-05 05:08:40 C 04 16 46.30 +29 34 28.4 r G96
2008-12-05 05:22:23 C 04 16 44.68 +29 34 32.5 r G96
2008-12-06 06:00:49 C 04 13 50.79 +29 41 20.5 19.3 c 704
2008-12-06 06:18:53 C 04 13 48.64 +29 41 25.6 19.5 c 704
2008-12-06 06:55:16 C 04 13 44.28 +29 41 35.3 20.1 c 704
2008-12-06 07:13:17 C 04 13 42.07 +29 41 40.8 20.1 c 704
2009-07-18 14:44:54 C 23 55 22.14 -43 25 05.8 r E12
2010-11-07 10:22:09 C 05 39 37.18 +27 12 35.2 r G96
2010-11-07 10:29:34 C 05 39 37.00 +27 12 38.7 r G96
2010-11-07 10:37:03 C 05 39 36.79 +27 12 41.7 r G96
2010-12-09 05:32:46 C 04 43 15.31 +33 56 20.7 r G96
2010-12-09 05:56:21 C 04 43 12.21 +33 56 32.8 r G96
2010-12-09 06:08:04 C 04 43 10.66 +33 56 38.9 r G96
2010-12-14 07:52:47 C 04 26 59.46 +34 54 34.9 r 703
2010-12-14 08:01:56 C 04 26 58.12 +34 54 38.7 r 703
2010-12-14 08:29:17 C 04 26 54.20 +34 54 49.5 r 703
2012-12-20 06:34:05 C 04 56 18.57 +42 16 32.6 19.2 c 704
2012-12-20 06:53:36 C 04 56 15.24 +42 16 47.8 19.2 c 704
2012-12-20 07:12:37 C 04 56 12.03 +42 17 02.9 19.8 c 704
2012-12-20 07:31:41 C 04 56 08.62 +42 17 19.7 19.4 c 704
2013-01-05 18:25:41 C 03 42 28.58 +46 07 04.2 q 157
2013-01-05 18:31:44 C 03 42 27.35 +46 07 05.9 q 157
2013-01-05 18:37:47 C 03 42 26.22 +46 07 07.8 q 157
2014-11-17 09:48:05 C 06 49 53.811 +31 57 53.73 L F51
2014-11-17 10:06:53 C 06 49 54.067 +31 58 07.85 L F51
2014-11-17 10:25:47 C 06 49 54.333 +31 58 21.91 L F51
2014-11-17 10:44:37 C 06 49 54.595 +31 58 36.16 L F51
2014-12-01 11:30:02 C 06 50 08.299 +37 08 45.62 L F51