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
2021-02-15 06:45:49 C 10 30 48.53 +35 57 31.6 V G96
2021-02-15 06:53:19 C 10 30 48.37 +35 57 33.9 V G96
2021-02-16 09:34:38 C 10 30 26.023 +36 04 28.86 U F51
2021-02-16 09:49:49 C 10 30 25.686 +36 04 32.83 U F51
2021-02-16 10:05:02 C 10 30 25.346 +36 04 36.72 U F51
2021-02-16 10:20:14 C 10 30 25.002 +36 04 40.54 U F51
2021-02-17 05:42:44 C 10 30 08.78 +36 08 52.4 U I41
2021-02-17 07:21:56 C 10 30 06.73 +36 09 15.3 U I41
2021-02-17 07:50:24 C 10 30 06.08 +36 09 21.5 U I41
2021-02-17 08:08:57 C 10 30 05.66 +36 09 25.6 U I41
2021-02-19 05:22:56 C 10 29 25.93 +36 17 17.7 U I41
2021-02-19 06:08:57 C 10 29 24.96 +36 17 25.7 U I41
2021-02-19 07:08:32 C 10 29 23.67 +36 17 35.4 U I41
2021-02-19 08:44:06 C 10 29 21.54 +36 17 49.3 U I41
2021-02-22 04:20:14 C 10 28 20.86 +36 24 06.9 V H36
2021-02-22 04:47:09 C 10 28 20.31 +36 24 09.0 V H36
2021-02-23 11:31:43 C 10 27 51.736 +36 25 09.45 U F51
2021-02-23 12:07:24 C 10 27 50.950 +36 25 08.86 U F51
2021-02-23 12:25:29 C 10 27 50.578 +36 25 09.02 U F51
2021-02-24 06:28:02 C 10 27 36.05 +36 25 00.7 V I52
2021-02-24 06:40:02 C 10 27 35.76 +36 25 00.6 V I52
2021-02-24 07:18:09 C 10 27 35.03 +36 24 59.7 V I52
2021-03-03 10:10:49 C 10 25 28.37 +36 04 48.5 V I52
2021-03-03 10:22:05 C 10 25 28.21 +36 04 45.2 V I52
2021-03-03 10:36:25 C 10 25 28.03 +36 04 42.1 V I52
2021-03-04 03:08:05 C 10 25 20.79 +36 01 03.3 V W33
2021-03-04 03:46:01 C 10 25 20.20 +36 00 54.5 V W33
2021-03-04 04:23:58 C 10 25 19.60 +36 00 46.1 V W33
2021-03-07 05:14:47 C 10 24 48.45 +35 41 12.3 U I41
2021-03-07 05:39:59 C 10 24 48.17 +35 41 05.0 U I41
2021-03-07 06:29:36 C 10 24 47.60 +35 40 50.4 U I41
2021-03-07 08:40:30 C 10 24 46.10 +35 40 10.4 U I41
2021-03-10 06:26:29 C 10 24 31.01 +35 16 35.0 V G96
2021-03-10 06:34:38 C 10 24 30.91 +35 16 31.7 V G96
2021-03-10 06:42:51 C 10 24 30.87 +35 16 28.8 V G96
2021-03-10 06:51:05 C 10 24 30.78 +35 16 26.1 V G96
2021-04-01 01:31:31 C 10 31 01.99 +30 38 41.7 u H21
2021-04-01 01:39:55 C 10 31 02.16 +30 38 36.6 u H21
2021-04-01 01:46:12 C 10 31 02.29 +30 38 32.6 u H21
2021-04-05 01:45:44 C 10 33 45.14 +29 35 41.9 u H21
2021-04-05 01:54:07 C 10 33 45.43 +29 35 36.6 u H21
2021-04-05 02:00:25 C 10 33 45.58 +29 35 32.9 u H21
2021-04-10 06:04:58 C 10 37 51.156 +28 11 37.38 U F51
2021-04-10 06:22:32 C 10 37 51.722 +28 11 26.18 U F51
2021-04-10 06:57:49 C 10 37 52.858 +28 11 02.13 U F51
2025-09-14 04:52:00 C 00 24 59.090 -16 18 58.40 V 807
2025-09-14 05:12:58 C 00 24 58.130 -16 19 08.40 V 807
2025-09-14 05:33:56 C 00 24 57.170 -16 19 20.00 V 807