2020 WJ4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3550675726 ± 4.83e-08
Semi-major axis (a)1.8921976912 AU ± 1.83e-08
Inclination (i)8.23778719° ± 3.89e-06
Long. of Asc. Node (Ω)95.32094561° ± 1.77e-05
Arg. of Perihelion (ω)7.17959285° ± 2.34e-05
Mean Anomaly (M)319.37012890° ± 1.08e-05
Mean Motion (n)0.3786714074°/day ± 5.50e-09
Perihelion dist (q)1.22033965 AU ± 9.22e-08
Aphelion dist (Q)2.56405573 AU ± 9.48e-08
Orbital Period2.60285372 yr ± 3.78e-08
Physical Parameters
H (abs. magnitude)20.92
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.258″
Uncertainty0
Orbit TypeAmor
MOID0.237172 AU
Observations Used145
Oppositions8
Arc Total2012-2025
First Observation Used2012-10-10
Last Observation Used2025-09-14
Observations (148)
Date Type RA Dec Mag Band Observatory
2020-12-19 10:45:44 C 09 24 13.53 +17 39 52.5 o 691
2020-12-19 10:53:11 C 09 24 14.31 +17 39 57.2 o 691
2020-12-19 11:00:39 C 09 24 15.12 +17 40 01.6 o 691
2020-12-23 09:39:04 C 09 34 36.73 +18 50 33.2 o 691
2020-12-23 09:46:11 C 09 34 37.45 +18 50 38.4 o 691
2020-12-23 09:53:18 C 09 34 38.15 +18 50 44.1 o 691
2020-12-26 07:42:30 C 09 41 55.27 +19 46 46.1 V G96
2020-12-26 07:49:53 C 09 41 56.00 +19 46 52.4 V G96
2020-12-26 07:57:15 C 09 41 56.71 +19 46 58.7 V G96
2020-12-26 08:04:37 C 09 41 57.39 +19 47 05.0 V G96
2021-01-06 10:46:01 C 10 06 06.36 +23 46 59.0 o 691
2021-01-06 10:53:19 C 10 06 06.89 +23 47 06.3 o 691
2021-01-06 10:58:10 C 10 06 07.23 +23 47 10.4 o 691
2021-01-08 09:51:17 C 10 09 40.08 +24 32 21.2 V G96
2021-01-08 09:58:41 C 10 09 40.56 +24 32 28.1 V G96
2021-01-08 10:18:36 C 10 09 41.86 +24 32 47.5 V G96
2021-01-08 10:26:00 C 10 09 42.34 +24 32 54.8 V G96
2021-01-09 09:47:26 C 10 11 22.87 +24 55 36.3 V 703
2021-01-09 10:10:15 C 10 11 24.36 +24 55 59.5 V 703
2021-01-12 03:49:02 C 10 15 45.45 +26 00 01.9 V L01
2021-01-12 03:51:19 C 10 15 45.60 +26 00 03.7 V L01
2021-01-12 03:53:35 C 10 15 45.72 +26 00 06.1 V L01
2021-01-12 03:55:50 C 10 15 45.84 +26 00 08.1 V L01
2021-01-14 08:31:39 C 10 18 55.49 +26 51 44.9 V 703
2021-01-14 08:46:51 C 10 18 56.26 +26 51 59.3 V 703
2021-01-14 08:54:27 C 10 18 56.62 +26 52 08.0 V 703
2021-01-17 10:47:07 C 10 22 46.44 +28 03 50.4 V G96
2021-01-17 10:54:26 C 10 22 46.72 +28 03 57.5 V G96
2021-01-17 11:01:47 C 10 22 47.02 +28 04 04.5 V G96
2021-01-17 11:09:06 C 10 22 47.32 +28 04 11.2 V G96
2021-01-18 08:32:37 C 10 23 47.99 +28 24 40.8 V 703
2021-01-18 08:40:09 C 10 23 48.37 +28 24 48.7 V 703
2021-01-18 08:47:40 C 10 23 48.53 +28 24 55.3 V 703
2021-01-18 08:55:11 C 10 23 48.85 +28 25 02.6 V 703
2021-02-02 05:13:31 C 10 32 37.15 +33 24 48.3 u H21
2021-02-02 05:16:53 C 10 32 37.15 +33 24 50.7 u H21
2021-02-02 05:20:05 C 10 32 37.17 +33 24 53.1 u H21
2021-02-03 06:32:55 C 10 32 43.70 +33 41 46.6 u H21
2021-02-03 06:37:15 C 10 32 43.68 +33 41 49.4 u H21
2021-02-03 06:41:26 C 10 32 43.66 +33 41 52.3 u H21
2021-02-03 06:45:37 C 10 32 43.66 +33 41 55.1 u H21
2021-02-03 06:49:48 C 10 32 43.65 +33 41 57.7 u H21
2021-02-03 06:56:38 C 10 32 43.63 +33 42 02.4 u H21
2021-02-06 08:21:16 C 10 32 45.34 +34 26 53.1 U I41
2021-02-06 09:46:10 C 10 32 44.42 +34 27 40.9 U I41
2021-02-06 10:45:14 C 10 32 43.83 +34 28 13.5 U I41
2021-02-08 08:23:40 C 10 32 32.64 +34 52 34.0 U I41
2021-02-08 08:41:30 C 10 32 32.38 +34 52 43.3 U I41
2021-02-15 06:29:13 C 10 30 48.89 +35 57 26.6 V G96
2021-02-15 06:38:19 C 10 30 48.68 +35 57 29.4 V G96