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
2020-12-13 12:39:40 C 11 25 04.72 +30 01 55.2 V 703
2020-12-13 12:47:37 C 11 25 06.80 +30 01 52.1 V 703
2020-12-13 12:55:38 C 11 25 09.15 +30 01 49.9 V 703
2020-12-13 13:04:13 C 11 25 11.51 +30 01 47.6 V 703
2020-12-17 11:47:47 C 11 53 21.98 +29 23 11.7 V G96
2020-12-17 11:55:10 C 11 53 24.23 +29 23 07.9 V G96
2020-12-17 12:02:33 C 11 53 26.47 +29 23 04.1 V G96
2020-12-17 12:09:55 C 11 53 28.72 +29 23 00.2 V G96
2020-12-21 11:09:18 C 12 23 52.56 +28 18 51.9 V 703
2020-12-21 11:17:25 C 12 23 55.26 +28 18 46.0 V 703
2020-12-21 11:33:38 C 12 24 00.41 +28 18 33.0 V 703
2020-12-26 11:49:55 C 13 04 52.60 +26 13 14.2 V G96
2020-12-26 11:57:23 C 13 04 55.17 +26 13 04.9 V G96
2020-12-26 12:04:50 C 13 04 57.72 +26 12 55.7 V G96
2020-12-26 12:12:16 C 13 05 00.29 +26 12 46.3 V G96
2020-12-26 14:46:37 C 13 05 54.18 +26 09 34.3 V T08
2020-12-26 14:51:15 C 13 05 55.75 +26 09 28.8 V T08
2020-12-26 15:09:23 C 13 06 01.95 +26 09 05.6 V T08
2020-12-26 15:24:00 C 13 06 06.96 +26 08 47.1 V T08
2020-12-27 22:13:25 S 13 16 51.353 +25 27 42.30 L C51
2020-12-28 04:29:52 S 13 19 03.305 +25 18 55.51 L C51
2020-12-28 06:04:07 S 13 19 36.312 +25 16 41.81 L C51
2020-12-28 12:20:34 S 13 21 48.410 +25 07 41.34 L C51
2020-12-28 12:20:45 S 13 21 48.446 +25 07 42.31 L C51
2021-01-04 13:04:47 C 14 20 49.57 +20 14 47.1 V G96
2021-01-04 13:17:01 C 14 20 53.72 +20 14 22.8 V G96
2021-01-04 13:22:28 C 14 20 55.56 +20 14 11.8 V G96
2021-01-04 13:27:55 C 14 20 57.39 +20 14 01.0 V G96
2021-08-10 13:04:40 C 00 48 46.943 -19 51 10.05 U F51
2021-08-10 13:37:14 C 00 48 45.602 -19 51 27.15 U F51
2021-08-10 13:53:35 C 00 48 44.918 -19 51 35.90 U F51
2021-09-11 09:39:17 C 23 59 09.813 -25 40 01.64 U F51
2021-09-11 09:54:23 C 23 59 08.584 -25 40 05.90 U F51
2021-09-11 10:09:31 C 23 59 07.364 -25 40 09.83 U F51
2021-09-11 10:24:37 C 23 59 06.127 -25 40 14.04 U F51
2021-10-02 08:45:04 C 23 23 00.202 -26 16 35.22 U F51
2021-10-02 08:59:00 C 23 22 59.373 -26 16 34.15 U F51
2021-10-02 09:12:57 C 23 22 58.514 -26 16 32.46 U F51
2021-10-02 09:26:52 C 23 22 57.678 -26 16 31.00 U F51
2022-10-21 11:38:41 C 08 14 11.422 +26 48 57.17 V G96
2022-10-21 11:44:49 C 08 14 12.206 +26 48 57.42 V G96
2022-10-21 11:50:57 C 08 14 12.984 +26 48 57.71 V G96
2022-10-21 11:57:04 C 08 14 13.765 +26 48 58.00 V G96
2022-10-28 14:15:26 C 08 37 01.094 +26 54 23.07 U F52
2022-10-28 14:32:44 C 08 37 03.475 +26 54 23.58 U F52
2022-10-28 14:50:02 C 08 37 05.862 +26 54 23.94 U F52
2022-10-28 15:07:22 C 08 37 08.231 +26 54 24.26 U F52
2023-08-18 13:57:08 C 00 52 27.619 -18 37 54.14 X F51
2023-08-18 14:13:22 C 00 52 26.846 -18 38 02.14 X F51
2023-08-18 14:29:39 C 00 52 26.065 -18 38 10.52 X F51