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
2012-12-22 02:04:10 C 04 01 03.43 +02 03 31.1 q H21
2012-12-23 03:26:10 C 03 59 38.95 +01 58 20.5 u H21
2012-12-23 03:30:15 C 03 59 38.70 +01 58 19.8 u H21
2012-12-23 03:34:21 C 03 59 38.46 +01 58 19.0 u H21
2012-12-23 03:38:26 C 03 59 38.25 +01 58 18.2 u H21
2012-12-23 03:42:32 C 03 59 38.01 +01 58 17.3 u H21
2012-12-23 03:46:38 C 03 59 37.78 +01 58 16.6 u H21
2012-12-23 03:50:43 C 03 59 37.56 +01 58 15.9 u H21
2012-12-23 03:54:25 C 03 59 37.35 +01 58 15.0 u H21
2012-12-23 03:58:06 C 03 59 37.16 +01 58 14.4 u H21
2012-12-31 05:39:34 C 03 51 01.721 +01 33 12.50 L F51
2012-12-31 05:40:31 C 03 51 01.690 +01 33 12.45 L F51
2012-12-31 05:56:44 C 03 51 01.091 +01 33 11.33 L F51
2012-12-31 05:57:40 C 03 51 01.057 +01 33 11.20 L F51
2012-12-31 08:05:59 C 03 50 56.326 +01 33 02.35 L F51
2012-12-31 08:07:03 C 03 50 56.287 +01 33 02.24 L F51
2012-12-31 08:24:31 C 03 50 55.643 +01 33 01.06 L F51
2012-12-31 08:25:35 C 03 50 55.604 +01 33 00.96 L F51
2013-01-07 03:28:40 C 03 46 24.38 +01 28 39.3 r 703
2013-01-07 03:37:37 C 03 46 24.09 +01 28 40.3 r 703
2013-01-07 03:46:35 C 03 46 23.95 +01 28 40.6 r 703
2013-02-05 06:44:03 C 03 47 38.237 +02 47 59.76 L F51
2013-02-05 07:03:02 C 03 47 38.591 +02 48 02.97 L F51
2014-02-25 00:15:07 C 07 46 19.78 -46 27 37.6 u 807
2014-02-25 00:18:46 C 07 46 19.21 -46 27 36.7 u 807
2014-02-25 00:21:57 C 07 46 18.69 -46 27 36.0 u 807
2014-02-25 00:25:11 C 07 46 18.16 -46 27 35.3 u 807
2014-02-25 00:29:45 C 07 46 17.42 -46 27 34.1 u 807
2014-03-24 12:47:21 S 06 17 12.295 -37 07 39.79 L C51
2014-03-24 15:56:57 S 06 16 52.752 -37 03 22.86 L C51
2014-03-24 17:31:45 S 06 16 43.044 -37 01 14.45 L C51
2014-03-24 17:31:56 S 06 16 43.025 -37 01 14.16 L C51
2014-03-24 19:06:44 S 06 16 33.298 -36 59 05.71 L C51
2014-03-24 20:41:32 S 06 16 23.594 -36 56 56.54 L C51
2014-03-24 23:51:08 S 06 16 04.224 -36 52 38.03 L C51
2014-03-25 01:25:56 S 06 15 54.545 -36 50 28.36 L C51
2014-03-25 03:00:44 S 06 15 44.887 -36 48 18.58 L C51
2014-03-25 06:10:20 S 06 15 25.620 -36 43 58.51 L C51
2014-10-23 10:45:43 C 06 50 16.93 +09 36 54.4 R G45
2014-10-23 10:47:34 C 06 50 16.90 +09 36 53.6 R G45
2014-10-23 11:05:05 C 06 50 16.51 +09 36 42.8 R G45
2014-10-23 11:06:46 C 06 50 16.50 +09 36 41.5 R G45
2014-10-23 11:22:50 C 06 50 16.14 +09 36 32.0 R G45
2014-10-23 11:24:29 C 06 50 16.11 +09 36 30.8 R G45
2014-10-23 11:39:49 C 06 50 15.80 +09 36 21.6 R G45
2014-10-23 11:57:58 C 06 50 15.38 +09 36 10.5 R G45
2014-10-23 12:14:19 C 06 50 15.00 +09 36 00.5 R G45
2014-10-24 11:15:21 C 06 49 45.59 +09 21 55.7 R G45
2014-10-24 11:32:35 C 06 49 45.19 +09 21 46.0 R G45
2014-10-24 11:34:14 C 06 49 45.16 +09 21 44.8 R G45