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
2023-11-04 15:15:07 S 05 20 37.915 +28 45 35.24 V C57
2023-11-04 15:15:07 s 1 +207000.19 7 +257753.52 0.733 C57
2023-11-04 15:35:07 S 05 20 32.316 +28 44 48.62 V C57
2023-11-04 15:35:07 s 1 +206600.01 1 +258350.59 0.665 C57
2023-11-04 15:55:07 S 05 20 26.866 +28 44 02.87 V C57
2023-11-04 15:55:07 s 1 +206197.04 6 +258944.14 0.08 C57
2023-11-04 16:15:07 S 05 20 21.185 +28 43 16.75 V C57
2023-11-04 16:15:07 s 1 +205791.31 8 +259534.17 0.994 C57
2023-11-04 16:35:07 S 05 20 15.720 +28 42 28.94 V C57
2023-11-04 16:35:07 s 1 +205382.84 3 +260120.69 0.419 C57
2023-11-04 16:55:07 S 05 20 10.106 +28 41 43.40 V C57
2023-11-04 16:55:07 s 1 +204971.60 6 +260703.66 0.352 C57
2023-11-04 17:55:07 S 05 19 53.722 +28 39 25.27 V C57
2023-11-04 17:55:07 s 1 +203721.46 2 +262431.31 0.317 C57
2023-11-04 18:15:07 S 05 19 48.218 +28 38 38.69 V C57
2023-11-04 18:15:07 s 1 +203299.28 2 +263000.08 0.383 C57
2023-11-04 18:35:07 S 05 19 42.449 +28 37 51.71 V C57
2023-11-04 18:35:07 s 1 +202874.39 2 +263565.28 0.008 C57
2023-11-04 18:55:07 S 05 19 37.248 +28 37 05.20 V C57
2023-11-04 18:55:07 s 1 +202446.77 6 +264126.90 0.189 C57
2023-11-04 19:15:07 S 05 19 31.589 +28 36 18.97 V C57
2023-11-04 19:15:07 s 1 +202016.45 2 +264684.93 0.938 C57
2023-11-04 19:35:07 S 05 19 25.994 +28 35 31.27 V C57
2023-11-04 19:35:07 s 1 +201583.43 5 +265239.38 0.27 C57
2023-11-04 19:55:07 S 05 19 20.666 +28 34 45.95 V C57
2023-11-04 19:55:07 s 1 +201147.71 1 +265790.22 0.18 C57
2023-11-04 20:15:07 S 05 19 14.940 +28 33 57.67 V C57
2023-11-04 20:15:07 s 1 +200709.29 6 +266337.45 0.683 C57
2023-11-04 20:48:27 S 05 19 05.813 +28 32 47.08 V C57
2023-11-04 20:48:27 s 1 +199972.71 0 +267241.56 0.785 C57
2023-11-05 02:15:07 S 05 17 35.966 +28 19 59.27 V C57
2023-11-05 02:15:07 s 1 +192364.31 1 +275561.97 9540.0 C57
2023-11-05 02:35:07 S 05 17 30.667 +28 19 13.80 V C57
2023-11-05 02:35:07 s 1 +191875.87 2 +276039.19 1970.0 C57
2023-11-05 02:55:07 S 05 17 25.205 +28 18 26.57 V C57
2023-11-05 02:55:07 s 1 +191384.84 6 +276512.64 1830.0 C57
2023-11-05 03:15:07 S 05 17 19.632 +28 17 40.52 V C57
2023-11-05 03:15:07 s 1 +190891.24 9 +276982.31 9240.0 C57
2023-11-05 03:35:07 S 05 17 14.153 +28 16 53.00 V C57
2023-11-05 03:35:07 s 1 +190395.09 6 +277448.21 4340.0 C57
2023-11-05 03:55:07 S 05 17 08.638 +28 16 06.20 V C57
2023-11-05 03:55:07 s 1 +189896.37 3 +277910.31 7100.0 C57
2023-11-05 04:15:07 S 05 17 03.293 +28 15 19.62 V C57
2023-11-05 04:15:07 s 1 +189395.09 6 +278368.62 7650.0 C57
2023-11-05 04:35:07 S 05 16 57.744 +28 14 33.29 V C57
2023-11-05 04:35:07 s 1 +188891.28 0 +278823.13 6110.0 C57
2023-11-05 04:55:07 S 05 16 52.262 +28 13 45.84 V C57
2023-11-05 04:55:07 s 1 +188384.91 1 +279273.82 2470.0 C57
2023-11-05 05:15:07 S 05 16 46.745 +28 12 57.24 V C57
2023-11-05 05:15:07 s 1 +187876.00 3 +279720.68 6850.0 C57