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
2025-12-25 08:18:53 C 04 39 22.819 -00 17 18.71 X F51
2025-12-25 08:34:26 C 04 39 21.772 -00 17 20.67 X F51
2025-12-25 08:50:19 C 04 39 20.708 -00 17 22.74 X F51
2025-12-25 08:50:56 C 04 39 20.695 -00 17 22.34 V T08
2025-12-25 08:58:10 C 04 39 20.162 -00 17 23.93 V T08
2025-12-25 09:02:46 C 04 39 19.836 -00 17 24.83 V T08
2025-12-25 09:05:59 C 04 39 19.653 -00 17 24.73 X F51
2025-12-25 09:19:23 C 04 39 18.754 -00 17 26.34 V T08
2025-12-26 03:12:33 C 04 38 09.506 -00 19 31.62 V W68
2025-12-26 03:17:08 C 04 38 09.211 -00 19 31.76 V W68
2025-12-26 03:26:21 C 04 38 08.611 -00 19 33.02 V W68
2025-12-26 03:43:37 C 04 38 07.469 -00 19 34.72 V W68
2025-12-27 20:57:28 B 04 35 34.013 -00 23 59.75 q Y84
2025-12-27 21:13:00 B 04 35 33.065 -00 24 01.15 q Y84
2025-12-27 21:30:30 B 04 35 31.980 -00 24 02.88 q Y84
2025-12-29 20:50:53 C 04 32 46.114 -00 27 34.42 V M22
2025-12-29 20:53:29 C 04 32 45.958 -00 27 35.21 V M22
2025-12-29 20:54:48 C 04 32 45.838 -00 27 35.89 V M22
2025-12-29 20:57:25 C 04 32 45.672 -00 27 35.24 V M22
2025-12-29 21:46:23 C 04 32 42.890 -00 27 39.60 V M22
2025-12-29 21:56:02 C 04 32 42.302 -00 27 38.66 V M22
2025-12-29 21:57:21 C 04 32 42.262 -00 27 40.03 V M22
2026-01-08 07:23:47 C 04 22 06.841 -00 29 29.24 X F52
2026-01-08 07:40:49 C 04 22 06.167 -00 29 28.55 X F52
2026-01-08 08:26:22 C 04 22 04.379 -00 29 26.56 X F52
2026-01-09 01:40:37 C 04 21 26.15 -00 28 33.5 W94
2026-01-09 01:49:37 C 04 21 25.77 -00 28 33.0 W94
2026-01-09 01:58:34 C 04 21 25.40 -00 28 32.5 W94
2026-01-10 20:38:43 C 04 19 56.618 -00 26 01.03 V M22
2026-01-10 20:49:07 C 04 19 56.220 -00 26 00.24 V M22
2026-01-10 20:53:40 C 04 19 56.098 -00 26 00.24 V M22
2026-01-10 21:11:49 C 04 19 55.452 -00 25 59.38 V M22
2026-01-11 07:00:03 C 04 19 36.452 -00 25 23.53 X F51
2026-01-11 07:17:49 C 04 19 35.851 -00 25 22.31 X F51
2026-01-11 07:53:27 C 04 19 34.646 -00 25 19.78 X F51
2026-01-13 01:46:50 C 04 18 17.858 -00 21 59.11 V W68
2026-01-13 02:00:43 C 04 18 17.525 -00 21 56.74 V W68
2026-01-13 02:06:00 C 04 18 17.273 -00 21 56.88 V W68
2026-01-13 02:16:44 C 04 18 17.016 -00 21 55.30 V W68
2026-01-13 20:27:56 C 04 17 46.226 -00 20 18.28 V M22
2026-01-13 20:32:29 C 04 17 46.032 -00 20 17.59 V M22
2026-01-13 20:45:29 C 04 17 45.713 -00 20 17.02 V M22
2026-01-13 21:11:48 C 04 17 44.962 -00 20 13.38 V M22
2026-01-15 02:11:55 C 04 16 59.02 -00 17 26.7 W94
2026-01-15 02:20:56 C 04 16 58.75 -00 17 25.7 W94
2026-01-15 02:29:55 C 04 16 58.50 -00 17 25.2 W94
2026-01-16 04:03:02 C 04 16 21.270 -00 14 48.44 V G96
2026-01-16 04:11:09 C 04 16 21.061 -00 14 47.72 V G96
2026-01-16 04:19:15 C 04 16 20.838 -00 14 46.57 V G96
2026-01-16 04:27:23 C 04 16 20.590 -00 14 45.60 V G96