3838 Epona (1986 WA)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7027320931 ± 1.48e-08
Semi-major axis (a)1.5048507223 AU ± 8.12e-10
Inclination (i)29.19742174° ± 2.05e-06
Long. of Asc. Node (Ω)235.45990588° ± 2.17e-06
Arg. of Perihelion (ω)49.73036289° ± 2.55e-06
Mean Anomaly (M)79.34514013° ± 2.89e-06
Mean Motion (n)0.5339150274°/day ± 4.32e-10
Perihelion dist (q)0.44734382 AU ± 2.23e-08
Aphelion dist (Q)2.56235762 AU ± 2.23e-08
Orbital Period1.84603585 yr ± 1.49e-09
Physical Parameters
H (abs. magnitude)15.67
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.260″
Uncertainty0
Orbit TypeApollo
MOID0.158551 AU
Observations Used2104
Gaia Obs Used70
Oppositions14
Arc Total1986-2026
First Observation Used1986-12-01
Last Observation Used2026-02-27
Observations (2522)
Date Type RA Dec Mag Band Observatory
1999-12-03 19:59:59 C 03 19 08.16 +08 26 26.9 z 151
1999-12-03 20:04:54 C 03 19 07.78 +08 26 22.4 z 151
1999-12-03 20:08:55 C 03 19 07.47 +08 26 17.9 z 151
1999-12-03 20:13:13 C 03 19 07.20 +08 26 14.3 z 151
1999-12-04 05:50:53 C 03 18 22.72 +08 17 11.5 c 699
1999-12-04 06:34:51 C 03 18 19.26 +08 16 30.4 c 699
1999-12-04 07:18:52 C 03 18 15.81 +08 15 49.5 c 699
1999-12-05 04:12:44 C 03 16 43.77 +07 57 00.9 c 829
1999-12-05 04:15:04 C 03 16 43.59 +07 56 58.8 c 829
1999-12-05 04:18:15 C 03 16 43.35 +07 56 55.9 c 829
1999-12-05 04:21:48 C 03 16 43.09 +07 56 52.9 c 829
1999-12-05 05:23:32 C 03 16 39.00 +07 55 43.7 16.8 a 704
1999-12-05 05:44:19 C 03 16 37.44 +07 55 25.2 16.8 a 704
1999-12-05 06:05:20 C 03 16 35.91 +07 55 06.9 16.8 a 704
1999-12-05 06:26:07 C 03 16 34.34 +07 54 48.5 16.8 a 704
1999-12-05 06:46:49 C 03 16 32.80 +07 54 29.7 17.1 a 704
1999-12-07 07:21:32 C 03 13 18.005 +07 13 55.67 l G91
1999-12-07 07:25:01 C 03 13 17.790 +07 13 53.28 l G91
1999-12-13 07:00:59 C 03 05 53.65 +05 38 50.5 i 670
1999-12-13 19:51:30 C 03 05 22.80 +05 31 56.1 610
1999-12-13 20:00:30 C 03 05 22.44 +05 31 51.1 610
1999-12-13 20:09:30 C 03 05 22.09 +05 31 46.1 610
1999-12-13 20:18:30 C 03 05 21.73 +05 31 41.1 610
1999-12-13 20:27:30 C 03 05 21.37 +05 31 36.0 610
1999-12-14 01:52:21 C 03 05 09.03 +05 28 47.7 17.1 a 704
1999-12-14 02:13:44 C 03 05 08.12 +05 28 36.6 17.4 a 704
1999-12-14 02:35:15 C 03 05 07.28 +05 28 25.3 17.7 a 704
1999-12-14 02:56:45 C 03 05 06.40 +05 28 14.3 16.8 a 704
1999-12-14 03:18:12 C 03 05 05.52 +05 28 03.5 17.1 a 704
1999-12-14 03:49:01 C 03 05 04.27 +05 27 48.5 c 699
1999-12-14 04:25:39 C 03 05 02.78 +05 27 30.8 c 699
1999-12-14 05:02:18 C 03 05 01.24 +05 27 10.0 c 699
1999-12-17 18:20:30 C 03 02 11.94 +04 48 11.9 610
1999-12-17 18:29:30 C 03 02 11.65 +04 48 08.2 610
1999-12-17 18:38:30 C 03 02 11.36 +04 48 04.6 610
1999-12-17 18:47:30 C 03 02 11.07 +04 48 00.9 610
1999-12-17 18:56:30 C 03 02 10.78 +04 47 57.2 610
1999-12-22 20:36:21 C 02 59 32.46 +04 07 23.0 118
1999-12-22 20:53:59 C 02 59 32.15 +04 07 18.0 118
2000-01-02 18:33:13 C 02 58 15.28 +03 24 34.2 610
2000-01-02 19:08:42 C 02 58 15.39 +03 24 31.4 610
2000-01-02 19:22:49 C 02 58 15.44 +03 24 30.3 610
2000-01-02 19:53:11 C 02 58 15.54 +03 24 27.9 610
2000-01-10 03:17:34 C 02 59 59.83 +03 19 55.0 c 699
2000-01-10 03:46:50 C 03 00 00.21 +03 19 55.2 c 699
2000-01-10 04:16:09 C 03 00 00.57 +03 19 55.2 c 699
2000-01-11 01:58:15 C 03 00 20.77 +03 20 21.3 18.6 a 704
2000-01-11 02:19:58 C 03 00 21.10 +03 20 21.8 19.3 a 704
2000-01-11 02:41:45 C 03 00 21.47 +03 20 21.5 19.0 a 704
2000-01-11 03:03:18 C 03 00 21.78 +03 20 22.1 19.2 a 704