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
2010-11-28 04:23:38 C 00 30 39.74 +12 33 09.3 r 703
2010-11-28 04:33:30 C 00 30 41.50 +12 32 52.1 r 703
2010-11-28 04:43:22 C 00 30 43.27 +12 32 35.3 r 703
2010-11-28 04:53:22 C 00 30 45.03 +12 32 18.0 r 703
2010-11-29 13:26:38 C 00 36 26.98 +11 39 19.0 o 300
2010-11-29 13:28:06 C 00 36 27.21 +11 39 16.7 o 300
2010-11-29 13:29:34 C 00 36 27.43 +11 39 14.7 o 300
2010-11-29 13:31:00 C 00 36 27.69 +11 39 12.3 o 300
2010-11-29 13:32:28 C 00 36 27.92 +11 39 10.4 o 300
2010-11-29 13:33:55 C 00 36 28.16 +11 39 07.9 o 300
2010-11-29 13:35:21 C 00 36 28.38 +11 39 05.8 o 300
2010-11-29 13:36:52 C 00 36 28.65 +11 39 03.3 o 300
2010-11-29 18:00:46 C 00 37 13.68 +11 32 16.6 v 204
2010-11-29 18:35:40 C 00 37 19.32 +11 31 23.7 v 204
2010-11-29 19:28:00 C 00 37 27.77 +11 30 04.5 v 204
2010-12-05 20:03:41 C 00 57 48.33 +08 35 03.8 c J26
2010-12-05 20:05:33 C 00 57 48.50 +08 35 02.2 c J26
2010-12-05 20:10:31 C 00 57 49.13 +08 34 57.9 c J26
2010-12-06 03:22:39 C 00 58 40.88 +08 28 15.0 16.5 c 704
2010-12-06 03:41:30 C 00 58 43.10 +08 27 59.0 16.8 c 704
2010-12-06 04:00:43 C 00 58 45.30 +08 27 39.8 16.7 c 704
2010-12-06 04:20:02 C 00 58 47.53 +08 27 23.0 16.7 c 704
2010-12-06 04:39:14 C 00 58 49.77 +08 27 04.2 16.6 c 704
2010-12-07 01:14:45 C 01 01 14.78 +08 08 36.0 16.7 c 704
2010-12-07 01:34:04 C 01 01 16.94 +08 08 19.2 16.6 c 704
2010-12-07 02:13:05 C 01 01 21.26 +08 07 45.8 16.9 c 704
2010-12-07 02:33:03 C 01 01 23.47 +08 07 28.3 16.9 c 704
2010-12-08 02:37:07 C 01 04 05.52 +07 47 27.2 r 703
2010-12-08 02:43:41 C 01 04 06.20 +07 47 21.8 r 703
2010-12-08 02:50:15 C 01 04 06.88 +07 47 16.6 r 703
2010-12-08 02:56:49 C 01 04 07.57 +07 47 11.7 r 703
2010-12-08 03:32:02 C 01 04 11.31 +07 46 43.2 r G96
2010-12-08 03:39:34 C 01 04 12.14 +07 46 37.2 r G96
2010-12-08 03:47:07 C 01 04 12.93 +07 46 31.1 r G96
2010-12-08 03:54:38 C 01 04 13.72 +07 46 25.2 r G96
2010-12-08 12:58:27 C 01 05 12.77 +07 39 17.8 o 300
2010-12-08 13:00:26 C 01 05 12.91 +07 39 16.1 o 300
2010-12-08 13:02:22 C 01 05 13.15 +07 39 14.4 o 300
2010-12-08 13:06:16 C 01 05 13.56 +07 39 11.1 o 300
2010-12-08 13:08:12 C 01 05 13.75 +07 39 09.7 o 300
2010-12-08 18:43:50 C 01 05 50.54 +07 34 49.1 v J93
2010-12-08 18:45:52 C 01 05 50.73 +07 34 47.3 v J93
2010-12-08 18:47:56 C 01 05 50.88 +07 34 45.9 v J93
2010-12-10 03:01:15 C 01 09 12.92 +07 11 35.0 16.7 c 704
2010-12-10 03:20:07 C 01 09 14.79 +07 11 22.2 16.9 c 704
2010-12-10 03:39:42 C 01 09 16.71 +07 11 08.7 17.0 c 704
2010-12-10 03:59:03 C 01 09 18.68 +07 10 55.4 16.9 c 704
2010-12-10 04:17:59 C 01 09 20.53 +07 10 42.1 17.1 c 704
2010-12-11 02:53:56 C 01 11 36.77 +06 55 50.6 16.6 c 704
2010-12-11 03:12:33 C 01 11 38.54 +06 55 38.7 16.8 c 704