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
2010-11-07 08:38:11 S 20 10 41.645 +38 58 16.97 L C51
2010-11-09 01:27:20 C 20 52 47.18 +37 24 56.0 r 850
2010-11-09 01:55:18 C 20 53 14.68 +37 23 32.9 r 850
2010-11-09 02:26:59 C 20 53 45.87 +37 21 57.6 r 850
2010-11-10 03:02:39 C 21 17 26.51 +36 01 47.4 r 850
2010-11-10 03:26:31 C 21 17 48.49 +36 00 21.1 r 850
2010-11-10 03:45:44 C 21 18 06.22 +35 59 11.3 r 850
2010-11-10 04:20:12 C 21 18 38.03 +35 57 05.5 r 850
2010-11-11 17:08:15 C 21 50 47.75 +33 34 19.3 d B66
2010-11-11 17:58:05 C 21 51 27.88 +33 30 54.0 d B66
2010-11-11 18:45:12 C 21 52 05.67 +33 27 38.4 d B66
2010-11-11 20:33:18 C 21 53 32.12 +33 20 05.9 d B66
2010-11-13 00:10:32 C 22 14 38.20 +31 22 40.1 u I15
2010-11-13 00:15:18 C 22 14 41.58 +31 22 19.6 u I15
2010-11-13 00:20:41 C 22 14 45.41 +31 21 56.2 u I15
2010-11-15 01:48:36 C 22 46 52.15 +27 48 37.7 c J93
2010-11-15 01:51:23 C 22 46 53.79 +27 48 26.2 c J93
2010-11-15 01:56:59 C 22 46 57.10 +27 48 02.3 c J93
2010-11-15 17:48:22 C 22 55 54.38 +26 41 54.3 c J93
2010-11-15 17:54:31 C 22 55 57.76 +26 41 28.7 c J93
2010-11-15 17:56:34 C 22 55 58.80 +26 41 20.6 c J93
2010-11-19 13:55:18 C 23 37 10.01 +20 57 14.1 o 300
2010-11-19 13:56:15 C 23 37 10.45 +20 57 11.1 o 300
2010-11-19 13:57:14 C 23 37 10.75 +20 57 07.5 o 300
2010-11-19 13:58:12 C 23 37 11.12 +20 57 04.1 o 300
2010-11-19 13:59:10 C 23 37 11.46 +20 57 00.9 o 300
2010-11-19 14:00:08 C 23 37 11.83 +20 56 57.8 o 300
2010-11-23 18:05:54 C 00 07 47.82 +16 11 09.2 d B66
2010-11-23 18:39:05 C 00 07 56.05 +16 09 48.7 d B66
2010-11-23 19:06:56 C 00 08 02.97 +16 08 41.4 d B66
2010-11-24 18:22:03 C 00 13 42.41 +15 14 31.2 d B66
2010-11-24 20:46:50 C 00 14 15.38 +15 09 07.5 d B66
2010-11-26 10:42:57 C 00 22 34.12 +13 49 47.0 o 300
2010-11-26 10:44:55 C 00 22 34.54 +13 49 43.3 o 300
2010-11-26 10:46:52 C 00 22 34.97 +13 49 39.0 o 300
2010-11-26 10:48:50 C 00 22 35.30 +13 49 35.5 o 300
2010-11-26 10:50:48 C 00 22 35.71 +13 49 31.6 o 300
2010-11-26 10:52:45 C 00 22 36.13 +13 49 28.0 o 300
2010-11-27 09:22:33 C 00 27 05.89 +13 06 49.5 u 379
2010-11-27 09:25:17 C 00 27 06.40 +13 06 44.4 u 379
2010-11-27 09:34:12 C 00 27 08.11 +13 06 28.6 u 379
2010-11-27 09:36:56 C 00 27 08.60 +13 06 23.4 u 379
2010-11-27 10:12:14 C 00 27 15.21 +13 05 19.5 u 379
2010-11-27 10:14:57 C 00 27 15.73 +13 05 14.6 u 379
2010-11-27 21:53:42 C 00 29 27.60 +12 44 19.9 c J93
2010-11-27 21:55:29 C 00 29 27.95 +12 44 16.4 c J93
2010-11-27 21:59:05 C 00 29 28.56 +12 44 10.4 c J93
2010-11-28 00:50:52 C 00 30 00.89 +12 39 13.9 u I15
2010-11-28 00:56:22 C 00 30 01.88 +12 39 04.3 u I15
2010-11-28 01:02:58 C 00 30 03.06 +12 38 52.9 u I15