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
2021-12-16 05:48:43 C 23 00 53.22 +03 03 52.3 V T08
2021-12-20 18:22:15 C 23 27 34.52 +03 19 02.2 X K87
2021-12-20 18:25:16 C 23 27 35.15 +03 19 02.8 X K87
2021-12-20 18:28:15 C 23 27 35.88 +03 19 02.9 X K87
2021-12-31 17:17:31 C 00 18 56.46 +03 57 19.4 V 130
2021-12-31 17:19:42 C 00 18 56.84 +03 57 19.7 V 130
2021-12-31 17:21:53 C 00 18 57.19 +03 57 20.1 V 130
2021-12-31 17:24:38 C 00 18 57.65 +03 57 20.4 V 130
2022-01-02 11:28:34 C 00 25 49.56 +04 03 58.9 V D29
2022-01-02 11:48:56 C 00 25 52.76 +04 04 02.0 V D29
2022-01-05 03:17:08 C 00 35 41.39 +04 14 22.3 V 703
2022-01-05 03:25:19 C 00 35 42.62 +04 14 23.7 V 703
2022-01-05 03:33:29 C 00 35 43.81 +04 14 25.0 V 703
2022-01-05 03:41:39 C 00 35 45.00 +04 14 26.3 V 703
2022-01-05 05:50:00 C 00 36 04.36 +04 14 47.5 V T08
2022-01-05 05:55:18 C 00 36 05.15 +04 14 48.6 V T08
2022-01-05 06:05:58 C 00 36 06.71 +04 14 50.8 V T08
2022-01-05 06:21:15 C 00 36 08.96 +04 14 53.2 V T08
2022-01-07 05:14:44 C 00 42 59.86 +04 22 44.8 V T05
2022-01-07 05:19:21 C 00 43 00.53 +04 22 45.8 V T05
2022-01-07 05:29:54 C 00 43 02.01 +04 22 47.6 V T05
2022-01-07 06:09:23 C 00 43 07.59 +04 22 54.3 V T05
2022-01-14 02:02:48 C 01 04 54.81 +04 51 51.1 V 703
2022-01-14 02:28:57 C 01 04 58.01 +04 51 55.4 V 703
2022-01-14 02:36:36 C 01 04 58.96 +04 51 57.0 V 703
2022-01-14 03:21:18 C 01 05 04.44 +04 52 05.2 V G96
2022-01-14 03:28:58 C 01 05 05.37 +04 52 06.5 V G96
2022-01-14 03:36:37 C 01 05 06.31 +04 52 08.0 V G96
2022-01-14 03:44:19 C 01 05 07.26 +04 52 09.3 V G96
2022-01-15 18:35:59 C 01 09 52.27 +04 59 18.2 V K83
2022-01-15 18:40:18 C 01 09 52.82 +04 59 18.9 V K83
2022-01-15 18:44:35 C 01 09 53.30 +04 59 19.8 V K83
2022-01-17 05:42:25 C 01 14 02.63 +05 05 55.1 V T08
2022-01-17 05:57:43 C 01 14 04.38 +05 05 57.4 V T08
2022-01-17 06:02:22 C 01 14 04.98 +05 05 58.3 V T08
2022-01-17 06:13:02 C 01 14 06.17 +05 05 59.7 V T08
2022-01-17 06:16:25 C 01 14 06.57 +05 06 00.1 V T08
2022-01-17 06:29:06 C 01 14 08.07 +05 06 02.7 V T08
2022-01-24 03:30:39 C 01 32 28.77 +05 37 47.2 V 703
2022-01-24 03:38:12 C 01 32 29.59 +05 37 48.4 V 703
2022-01-24 03:45:45 C 01 32 30.31 +05 37 50.3 V 703
2022-01-24 03:53:18 C 01 32 31.20 +05 37 51.0 V 703
2022-01-25 05:29:47 C 01 35 12.30 +05 42 55.5 V T08
2022-01-25 05:33:48 C 01 35 12.69 +05 42 56.7 V T08
2022-01-25 05:43:46 C 01 35 13.70 +05 42 59.0 V T08
2022-01-25 06:00:29 C 01 35 15.42 +05 43 01.9 V T08
2022-01-28 03:05:51 C 01 42 18.96 +05 56 44.8 V 703
2022-01-28 03:14:06 C 01 42 19.73 +05 56 46.3 V 703
2022-01-28 03:22:21 C 01 42 20.60 +05 56 47.9 V 703
2022-01-28 03:30:36 C 01 42 21.43 +05 56 49.6 V 703