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
1990-03-25 10:08:04 A 06 17 02.49 -35 48 22.7 474
1994-12-20 14:33:11 C 06 53 36.28 -09 50 17.8 413
1994-12-20 14:38:40 C 06 53 35.85 -09 50 19.1 413
1994-12-27 14:59:00 C 06 42 05.26 -10 25 40.2 z 360
1994-12-27 15:05:30 C 06 42 04.80 -10 25 42.4 z 360
1994-12-28 17:35:45 C 06 40 13.63 -10 29 40.5 z 360
1994-12-28 17:42:14 C 06 40 13.17 -10 29 41.0 z 360
1994-12-28 17:50:15 C 06 40 12.57 -10 29 42.7 z 360
1995-02-02 13:21:44 C 05 49 29.12 -09 02 53.1 413
1995-02-02 13:28:31 C 05 49 28.81 -09 02 51.1 413
1996-12-04 09:26:24 C 07 52 43.01 -11 23 02.8 i 711
1996-12-04 09:40:20 C 07 52 42.52 -11 23 09.1 i 711
1996-12-06 10:02:16 C 07 50 50.60 -11 47 12.2 i 711
1996-12-06 10:16:15 C 07 50 50.06 -11 47 18.4 i 711
1996-12-06 18:30:27 C 07 50 30.11 -11 51 18.8 381
1996-12-06 18:36:18 C 07 50 29.71 -11 51 23.4 381
1997-01-18 08:52:48 C 06 46 48.16 -15 45 18.6 c 608
1997-01-18 09:34:46 C 06 46 45.19 -15 45 14.1 c 608
1997-02-04 08:15:53 C 06 22 14.75 -14 13 16.6 c 608
1997-02-04 09:10:44 C 06 22 11.93 -14 12 58.8 c 608
1997-02-05 08:18:57 C 06 21 03.55 -14 05 16.8 c 608
1997-02-05 09:20:18 C 06 21 00.53 -14 04 56.1 c 608
1997-02-10 04:35:29 C 06 15 49.52 -13 23 43.2 i 711
1997-02-10 04:53:16 C 06 15 48.75 -13 23 36.5 i 711
1997-02-11 04:09:21 C 06 14 52.10 -13 14 46.5 i 711
1997-02-11 04:26:28 C 06 14 51.51 -13 14 40.2 i 711
1997-11-29 01:13:28 C 20 37 49.15 +01 39 43.3 a 688
1997-11-29 01:15:49 C 20 37 50.03 +01 39 44.1 a 688
1997-11-29 01:34:20 C 20 37 57.41 +01 39 50.3 a 688
1997-11-29 01:36:19 C 20 37 58.21 +01 39 50.7 a 688
1997-12-27 02:10:14 C 23 56 23.96 +03 49 13.6 a 688
1997-12-27 02:13:26 C 23 56 24.61 +03 49 14.2 a 688
1997-12-27 02:16:15 C 23 56 25.12 +03 49 14.7 a 688
1997-12-29 02:36:21 C 00 05 26.94 +03 56 40.3 a 688
1997-12-29 02:46:56 C 00 05 28.84 +03 56 41.6 a 688
1997-12-29 02:49:32 C 00 05 29.32 +03 56 42.2 a 688
1997-12-30 07:31:17 C 00 10 36.79 +04 01 11.9 c 566
1997-12-30 07:45:35 C 00 10 39.30 +04 01 14.2 c 566
1997-12-30 07:59:59 C 00 10 41.83 +04 01 16.2 c 566
1998-01-10 17:36:48 C 00 52 38.57 +04 47 03.6 z 118
1998-01-10 17:41:24 C 00 52 39.17 +04 47 04.2 z 118
1998-01-10 17:50:26 C 00 52 40.35 +04 47 06.0 z 118
1998-01-11 18:47:25 C 00 55 59.32 +04 51 34.2 046
1998-01-11 18:51:16 C 00 55 59.88 +04 51 34.4 046
1998-01-11 18:54:25 C 00 56 00.26 +04 51 34.9 046
1998-01-15 17:20:21 C 01 07 58.38 +05 08 49.3 z 118
1998-01-15 17:29:54 C 01 07 59.51 +05 08 51.2 z 118
1998-02-03 03:42:20 C 01 55 11.04 +06 35 24.2 z 711
1998-02-03 03:53:49 C 01 55 12.14 +06 35 26.9 z 711
1998-02-04 03:40:42 C 01 57 26.98 +06 40 15.6 z 711