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
2021-11-25 16:42:06 C 20 08 36.36 +01 17 59.9 V L18
2021-11-25 16:43:31 C 20 08 36.94 +01 18 00.5 V L18
2021-11-25 16:44:56 C 20 08 37.54 +01 18 00.9 V L18
2021-11-25 16:46:21 C 20 08 38.08 +01 18 01.3 V L18
2021-11-25 16:47:46 C 20 08 38.65 +01 18 01.5 V L18
2021-11-26 05:26:12 C 20 13 49.90 +01 22 22.2 V T08
2021-11-26 05:30:50 C 20 13 51.78 +01 22 23.7 V T08
2021-11-26 05:40:10 C 20 13 55.59 +01 22 26.7 V T08
2021-11-26 06:00:05 C 20 14 03.71 +01 22 33.3 V T08
2021-11-28 01:00:30 C 20 31 37.57 +01 36 05.7 V W46
2021-11-28 01:01:21 C 20 31 37.92 +01 36 06.5 V W46
2021-11-28 01:02:11 C 20 31 38.24 +01 36 06.9 V W46
2021-11-28 05:41:16 C 20 33 31.41 +01 37 34.0 V T05
2021-11-28 05:45:54 C 20 33 33.29 +01 37 35.4 V T05
2021-11-28 05:55:49 C 20 33 37.28 +01 37 38.4 V T05
2021-11-28 06:11:40 C 20 33 43.66 +01 37 43.0 V T05
2021-12-02 01:23:43 C 21 09 52.37 +02 02 26.4 V 703
2021-12-02 01:31:57 C 21 09 55.50 +02 02 28.6 V 703
2021-12-02 01:40:12 C 21 09 58.64 +02 02 30.6 V 703
2021-12-02 01:48:27 C 21 10 01.83 +02 02 32.7 V 703
2021-12-03 01:57:06 C 21 19 14.91 +02 08 18.0 V G96
2021-12-03 02:05:13 C 21 19 17.96 +02 08 19.8 V G96
2021-12-03 02:13:22 C 21 19 21.01 +02 08 21.7 V G96
2021-12-03 02:21:29 C 21 19 24.06 +02 08 23.5 V G96
2021-12-05 01:55:06 C 21 37 01.54 +02 18 52.0 V 703
2021-12-05 02:03:19 C 21 37 04.49 +02 18 53.7 V 703
2021-12-05 02:11:33 C 21 37 07.45 +02 18 55.4 V 703
2021-12-05 02:19:47 C 21 37 10.41 +02 18 57.1 V 703
2021-12-09 02:01:41 C 22 10 12.72 +02 37 09.5 V 703
2021-12-09 02:10:03 C 22 10 15.45 +02 37 10.8 V 703
2021-12-09 02:18:24 C 22 10 18.17 +02 37 12.2 V 703
2021-12-09 02:26:46 C 22 10 20.88 +02 37 13.5 V 703
2021-12-11 18:42:46 C 22 30 35.33 +02 47 48.3 V G17
2021-12-11 18:47:57 C 22 30 36.89 +02 47 49.6 V G17
2021-12-11 18:53:08 C 22 30 38.45 +02 47 50.5 V G17
2021-12-12 06:22:19 C 22 34 05.37 +02 49 42.9 V T08
2021-12-12 06:26:59 C 22 34 06.74 +02 49 43.5 V T08
2021-12-12 06:34:59 C 22 34 09.13 +02 49 44.9 V T08
2021-12-12 06:53:39 C 22 34 14.65 +02 49 47.7 V T08
2021-12-13 03:03:56 C 22 40 11.05 +02 52 51.0 V 703
2021-12-13 03:12:21 C 22 40 13.49 +02 52 52.5 V 703
2021-12-13 03:20:47 C 22 40 15.91 +02 52 53.5 V 703
2021-12-13 03:29:13 C 22 40 18.33 +02 52 54.7 V 703
2021-12-16 02:04:50 C 22 59 54.23 +03 03 18.1 V 703
2021-12-16 02:12:51 C 22 59 56.32 +03 03 19.2 V 703
2021-12-16 02:20:53 C 22 59 58.43 +03 03 20.4 V 703
2021-12-16 02:28:54 C 23 00 00.52 +03 03 21.6 V 703
2021-12-16 05:21:18 C 23 00 46.10 +03 03 49.1 V T08
2021-12-16 05:25:57 C 23 00 47.31 +03 03 49.1 V T08
2021-12-16 05:33:21 C 23 00 49.25 +03 03 50.3 V T08