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
2023-11-06 20:24:04 C 05 06 04.643 +26 30 53.21 W M01
2023-11-06 21:43:14 C 05 05 44.187 +26 27 54.39 W M01
2023-11-06 21:45:44 C 05 05 43.542 +26 27 48.73 W M01
2023-11-06 21:48:14 C 05 05 42.898 +26 27 43.07 W M01
2023-11-06 23:21:37 B 05 05 18.68 +26 24 04.3 X L99
2023-11-06 23:24:31 B 05 05 18.04 +26 23 55.8 X L99
2023-11-06 23:27:25 B 05 05 17.24 +26 23 50.4 X L99
2023-11-07 00:15:12 C 05 05 04.818 +26 22 08.68 W M01
2023-11-07 00:16:17 C 05 05 04.533 +26 22 06.19 W M01
2023-11-07 00:17:42 C 05 05 04.174 +26 22 02.98 W M01
2023-11-07 00:18:47 C 05 05 03.886 +26 22 00.48 W M01
2023-11-07 00:20:12 C 05 05 03.530 +26 21 57.28 W M01
2023-11-07 00:21:17 C 05 05 03.240 +26 21 54.76 W M01
2023-11-09 10:23:32 C 04 50 52.853 +24 10 05.02 V T05
2023-11-09 10:27:40 C 04 50 50.780 +24 09 51.66 V 703
2023-11-09 10:35:16 C 04 50 48.944 +24 09 34.52 V 703
2023-11-09 10:42:53 C 04 50 47.116 +24 09 17.14 V 703
2023-11-09 10:50:29 C 04 50 45.280 +24 08 59.89 V 703
2023-11-09 10:54:00 C 04 50 45.487 +24 08 56.76 V T05
2023-11-09 10:58:03 C 04 50 44.506 +24 08 47.69 V T05
2023-11-09 11:06:01 C 04 50 42.574 +24 08 29.69 V T05
2023-11-10 20:06:59 C 04 43 05.75 +22 54 19.6 V G34
2023-11-10 20:09:51 C 04 43 05.11 +22 54 13.3 V G34
2023-11-10 20:12:44 C 04 43 04.45 +22 54 07.2 V G34
2023-11-10 20:15:36 C 04 43 03.80 +22 54 00.7 V G34
2023-11-10 20:18:51 C 04 43 03.06 +22 53 53.6 V G34
2023-11-11 07:13:11 C 04 40 36.044 +22 29 52.84 V 703
2023-11-11 07:16:58 C 04 40 35.177 +22 29 44.34 V 703
2023-11-11 07:21:38 C 04 40 34.079 +22 29 34.26 V 703
2023-11-11 07:25:24 C 04 40 33.244 +22 29 26.23 V 703
2023-11-11 07:30:05 C 04 40 32.178 +22 29 15.68 V 703
2023-11-11 07:33:51 C 04 40 31.364 +22 29 07.66 V 703
2023-11-11 07:38:33 C 04 40 30.212 +22 28 57.65 V 703
2023-11-11 07:42:22 C 04 40 29.363 +22 28 48.94 V 703
2023-11-11 10:15:45 C 04 39 54.717 +22 23 08.53 V U68
2023-11-11 10:20:34 C 04 39 53.627 +22 22 57.87 V U68
2023-11-11 10:36:51 C 04 39 50.731 +22 22 27.73 V T05
2023-11-11 10:40:06 C 04 39 49.992 +22 22 20.64 V T05
2023-11-11 10:46:13 C 04 39 47.804 +22 22 01.12 V U68
2023-11-11 10:47:35 C 04 39 48.295 +22 22 04.19 V T05
2023-11-11 10:51:01 C 04 39 46.711 +22 21 50.55 V U68
2023-11-11 10:55:24 C 04 39 46.517 +22 21 47.02 V T05
2023-11-12 01:41:33 B 04 36 32.82 +21 49 29.8 q X33
2023-11-12 01:43:35 B 04 36 32.72 +21 49 25.8 q X33
2023-11-12 01:45:37 B 04 36 32.25 +21 49 23.6 q X33
2023-11-12 05:11:21 C 04 35 46.915 +21 42 02.30 V W68
2023-11-12 05:13:58 C 04 35 46.356 +21 41 56.87 V W68
2023-11-12 05:18:32 C 04 35 45.336 +21 41 46.82 V W68
2023-11-12 05:29:42 C 04 35 42.878 +21 41 22.60 V W68
2023-11-12 19:34:01 C 04 32 43.32 +21 10 27.0 X G02