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
2023-11-12 19:37:12 C 04 32 42.65 +21 10 20.1 X G02
2023-11-12 19:40:24 C 04 32 41.97 +21 10 13.3 X G02
2023-11-13 11:40:23 C 04 29 20.580 +20 36 12.13 V T05
2023-11-13 12:19:52 C 04 29 12.206 +20 34 48.07 V T05
2023-11-13 12:24:00 C 04 29 11.335 +20 34 39.18 V T05
2023-11-13 12:31:22 C 04 29 09.773 +20 34 23.56 V T05
2023-11-13 15:16:36 C 04 28 36.79 +20 28 49.3 V 323
2023-11-13 15:27:25 C 04 28 34.47 +20 28 25.4 V 323
2023-11-13 15:39:27 C 04 28 31.98 +20 28 00.2 V 323
2023-11-13 15:50:33 C 04 28 29.53 +20 27 39.2 V 323
2023-11-13 16:01:13 C 04 28 27.36 +20 27 14.0 V 323
2023-11-13 16:11:57 C 04 28 25.13 +20 26 51.7 V 323
2023-11-14 15:03:42 C 04 23 49.09 +19 38 56.3 V 323
2023-11-14 15:15:32 C 04 23 46.76 +19 38 34.3 V 323
2023-11-14 15:27:09 C 04 23 44.36 +19 38 10.1 V 323
2023-11-14 15:38:49 C 04 23 41.96 +19 37 44.6 V 323
2023-11-15 11:16:19 C 04 19 52.313 +18 57 16.49 V T05
2023-11-15 11:20:52 C 04 19 51.415 +18 57 07.13 V T05
2023-11-15 12:11:52 C 04 19 41.369 +18 55 23.63 V T05
2023-11-15 12:20:10 C 04 19 39.737 +18 55 06.67 V T05
2023-11-15 15:27:05 C 04 19 05.33 +18 48 49.4 Z O52
2023-11-15 15:30:10 C 04 19 04.66 +18 48 46.5 Z O52
2023-11-15 15:33:15 C 04 19 04.11 +18 48 37.7 Z O52
2023-11-15 15:36:22 C 04 19 03.54 +18 48 30.9 Z O52
2023-11-15 16:02:08 C 04 18 58.09 +18 47 53.2 V 323
2023-11-15 17:12:38 C 04 18 44.41 +18 45 31.7 V 323
2023-11-15 17:23:41 C 04 18 42.26 +18 45 09.2 V 323
2023-11-15 17:34:59 C 04 18 40.09 +18 44 47.1 V 323
2023-11-15 17:46:18 C 04 18 38.01 +18 44 24.6 V 323
2023-11-16 14:33:21 C 04 14 46.08 +18 02 59.1 V 323
2023-11-16 14:43:49 C 04 14 44.10 +18 02 38.2 V 323
2023-11-16 14:56:57 C 04 14 41.68 +18 02 12.7 V 323
2023-11-16 15:11:25 C 04 14 38.89 +18 01 45.1 V 323
2023-11-16 15:26:16 C 04 14 36.10 +18 01 15.2 V 323
2023-11-16 15:37:58 C 04 14 33.97 +18 00 52.1 V 323
2023-11-17 11:08:40 C 04 11 02.794 +17 22 44.18 V T05
2023-11-17 11:13:53 C 04 11 01.843 +17 22 34.18 V T05
2023-11-17 11:59:51 C 04 10 53.470 +17 21 05.83 V T05
2023-11-17 12:07:39 C 04 10 52.049 +17 20 50.86 V T05
2023-11-18 19:52:08 C 04 05 25.402 +16 21 07.09 o M52
2023-11-18 20:18:27 C 04 05 20.923 +16 20 19.82 o M52
2023-11-19 11:15:10 C 04 02 52.258 +15 53 19.82 V T05
2023-11-19 11:24:33 C 04 02 50.683 +15 53 02.87 V T05
2023-11-19 12:16:15 C 04 02 42.029 +15 51 29.70 V T05
2023-11-20 09:26:15 C 03 59 19.525 +15 14 02.08 V 703
2023-11-20 09:33:54 C 03 59 18.294 +15 13 48.61 V 703
2023-11-20 09:41:33 C 03 59 17.070 +15 13 35.40 V 703
2023-11-20 09:49:12 C 03 59 15.850 +15 13 21.94 V 703
2023-11-20 15:07:41 C 03 58 27.52 +15 04 16.1 Z O52
2023-11-20 15:16:03 C 03 58 26.19 +15 04 01.7 Z O52