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
2012-11-08 02:44:57 C 05 49 10.58 +13 40 23.5 c A24
2012-11-08 03:50:06 C 05 49 02.81 +13 39 19.5 c A24
2012-11-08 03:51:08 C 05 49 02.67 +13 39 18.3 c A24
2012-11-10 08:35:53 C 05 42 48.38 +12 47 54.4 17.1 c 704
2012-11-10 08:56:59 C 05 42 45.79 +12 47 34.1 17.3 c 704
2012-11-10 09:18:08 C 05 42 43.20 +12 47 13.0 17.4 c 704
2012-11-10 09:39:04 C 05 42 40.65 +12 46 53.0 17.3 c 704
2012-11-10 10:00:01 C 05 42 38.08 +12 46 32.8 17.4 c 704
2012-11-11 03:37:52 C 05 40 30.72 +12 29 25.5 w I57
2012-11-11 03:40:34 C 05 40 30.40 +12 29 23.3 w I57
2012-11-11 03:42:03 C 05 40 30.20 +12 29 21.5 w I57
2012-11-21 00:56:57 C 05 11 20.86 +08 49 22.9 c A24
2012-11-21 00:57:59 C 05 11 20.73 +08 49 21.5 c A24
2012-11-26 08:05:53 C 04 56 05.49 +07 04 47.8 u H21
2012-11-26 08:08:45 C 04 56 05.16 +07 04 45.6 u H21
2012-11-26 08:11:25 C 04 56 04.84 +07 04 43.6 u H21
2012-11-26 08:14:07 C 04 56 04.52 +07 04 41.4 u H21
2012-11-26 08:18:15 C 04 56 04.03 +07 04 38.2 u H21
2012-11-28 07:04:01 C 04 50 40.61 +06 29 25.7 u H21
2012-11-28 07:15:13 C 04 50 39.31 +06 29 17.8 u H21
2012-11-28 07:30:15 C 04 50 37.56 +06 29 05.7 u H21
2012-11-28 07:35:15 C 04 50 36.99 +06 29 02.1 u H21
2012-12-01 06:03:48 C 04 42 47.24 +05 39 39.4 u H21
2012-12-01 06:10:13 C 04 42 46.54 +05 39 35.1 u H21
2012-12-01 06:16:55 C 04 42 45.80 +05 39 30.6 u H21
2012-12-01 06:23:54 C 04 42 45.03 +05 39 25.9 u H21
2012-12-03 06:51:08 C 04 37 36.19 +05 08 12.4 r 703
2012-12-03 06:58:29 C 04 37 35.47 +05 08 07.9 r 703
2012-12-03 07:05:53 C 04 37 34.64 +05 08 03.1 r 703
2012-12-03 07:13:18 C 04 37 33.85 +05 07 58.5 r 703
2012-12-09 04:32:50 C 04 23 48.71 +03 49 48.6 u H15
2012-12-09 04:54:45 C 04 23 46.68 +03 49 37.9 u H15
2012-12-09 05:16:37 C 04 23 44.68 +03 49 27.0 u H15
2012-12-09 05:41:27 C 04 23 42.39 +03 49 15.8 u H15
2012-12-11 05:08:06 C 04 19 33.06 +03 27 24.6 r 703
2012-12-11 05:14:55 C 04 19 32.44 +03 27 21.3 r 703
2012-12-11 05:21:50 C 04 19 31.83 +03 27 18.5 r 703
2012-12-11 05:28:44 C 04 19 31.26 +03 27 15.3 r 703
2012-12-12 23:03:25 C 04 16 04.46 +03 09 51.1 t 130
2012-12-12 23:04:31 C 04 16 04.37 +03 09 50.6 t 130
2012-12-12 23:05:37 C 04 16 04.30 +03 09 50.2 t 130
2012-12-12 23:07:16 C 04 16 04.12 +03 09 49.6 t 130
2012-12-15 05:11:17 C 04 11 52.60 +02 49 38.4 17.9 c 704
2012-12-15 05:31:18 C 04 11 51.07 +02 49 31.5 18.0 c 704
2012-12-15 05:50:26 C 04 11 49.61 +02 49 24.9 18.1 c 704
2012-12-15 06:10:00 C 04 11 48.10 +02 49 17.9 18.0 c 704
2012-12-15 06:29:17 C 04 11 46.63 +02 49 11.2 18.3 c 704
2012-12-22 01:49:44 C 04 01 04.26 +02 03 34.1 q H21
2012-12-22 01:54:33 C 04 01 04.00 +02 03 33.3 q H21
2012-12-22 01:59:22 C 04 01 03.71 +02 03 32.2 q H21