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
2010-12-11 03:31:12 C 01 11 40.31 +06 55 26.5 16.9 c 704
2010-12-11 03:49:52 C 01 11 42.10 +06 55 14.8 17.0 c 704
2010-12-11 04:08:32 C 01 11 43.89 +06 55 02.8 16.7 c 704
2010-12-12 02:14:23 C 01 13 53.11 +06 41 35.4 r G96
2010-12-12 02:20:21 C 01 13 53.65 +06 41 31.9 r G96
2010-12-12 02:26:18 C 01 13 54.19 +06 41 28.5 r G96
2010-12-12 02:32:16 C 01 13 54.76 +06 41 24.9 r G96
2010-12-18 23:15:50 C 01 28 16.26 +05 27 11.3 w J24
2010-12-18 23:25:02 C 01 28 17.01 +05 27 08.8 w J24
2010-12-18 23:32:27 C 01 28 17.56 +05 27 06.5 w J24
2011-01-03 18:30:12 C 01 55 15.32 +04 27 05.4 u 240
2011-01-03 18:32:51 C 01 55 15.48 +04 27 05.5 u 240
2011-01-03 18:38:09 C 01 55 15.75 +04 27 06.7 u 240
2011-01-03 20:31:58 C 01 55 23.05 +04 27 03.2 d B66
2011-01-03 21:07:00 C 01 55 25.27 +04 27 02.0 d B66
2011-01-03 21:59:36 C 01 55 28.64 +04 27 00.9 d B66
2011-01-23 18:56:24 C 02 25 10.08 +04 56 52.6 d B66
2011-01-23 19:30:37 C 02 25 12.17 +04 56 57.4 d B66
2011-01-28 02:40:18 C 02 31 26.36 +05 10 46.2 r 703
2011-01-28 02:46:44 C 02 31 26.76 +05 10 46.9 r 703
2011-01-28 02:53:20 C 02 31 27.08 +05 10 47.8 r 703
2011-01-28 02:59:54 C 02 31 27.44 +05 10 49.7 r 703
2011-01-30 02:17:42 C 02 34 18.83 +05 17 39.2 19.3 c 704
2011-01-30 02:36:16 C 02 34 19.98 +05 17 41.8 19.9 c 704
2011-01-30 02:54:49 C 02 34 21.03 +05 17 44.5 19.4 c 704
2011-01-30 03:13:20 C 02 34 22.13 +05 17 46.9 19.6 c 704
2011-01-30 03:31:55 C 02 34 23.23 +05 17 51.0 19.7 c 704
2012-02-04 08:42:17 C 07 29 59.910 -27 21 24.10 L F51
2012-02-04 09:00:53 C 07 29 58.277 -27 21 20.36 L F51
2012-09-11 02:04:24 C 07 05 12.07 +33 53 11.2 v C36
2012-09-11 02:06:31 C 07 05 12.07 +33 53 09.0 v C36
2012-09-23 11:08:47 C 07 01 21.10 +29 51 47.7 r G96
2012-09-23 11:15:38 C 07 01 20.96 +29 51 42.1 r G96
2012-09-23 11:22:37 C 07 01 20.82 +29 51 36.9 r G96
2012-09-23 11:29:35 C 07 01 20.74 +29 51 31.5 r G96
2012-10-10 03:56:14 C 06 48 19.74 +24 22 58.6 o 954
2012-10-10 04:51:14 C 06 48 16.89 +24 22 12.3 o 954
2012-10-10 05:21:20 C 06 48 15.30 +24 21 47.1 o 954
2012-10-16 10:35:03 C 06 39 44.76 +22 13 05.3 17.7 c 704
2012-10-16 10:54:31 C 06 39 43.44 +22 12 48.7 17.8 c 704
2012-10-16 11:34:31 C 06 39 40.75 +22 12 13.2 18.3 c 704
2012-10-16 11:53:57 C 06 39 39.39 +22 11 56.5 18.2 c 704
2012-10-30 22:01:54 C 06 10 45.46 +16 52 08.5 o B67
2012-10-30 22:11:02 C 06 10 44.58 +16 51 59.8 o B67
2012-10-30 22:20:09 C 06 10 43.63 +16 51 50.6 o B67
2012-11-07 02:41:20 C 05 51 58.24 +14 03 55.5 c A24
2012-11-07 02:42:22 C 05 51 58.11 +14 03 54.6 c A24
2012-11-07 03:47:32 C 05 51 50.44 +14 02 50.5 c A24
2012-11-07 03:48:34 C 05 51 50.32 +14 02 49.8 c A24
2012-11-08 02:43:54 C 05 49 10.67 +13 40 24.4 c A24