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
2023-11-06 07:44:50 C 05 09 17.210 +27 00 06.80 V W68
2023-11-06 07:55:07 S 05 09 33.062 +27 09 37.84 V C57
2023-11-06 07:55:07 s 1 +139417.01 9 +302272.87 4020.0 C57
2023-11-06 08:15:07 S 05 09 27.761 +27 08 50.10 V C57
2023-11-06 08:15:07 s 1 +138720.38 4 +302378.57 4940.0 C57
2023-11-06 08:26:04 C 05 09 06.372 +26 58 32.41 V W68
2023-11-06 08:35:07 S 05 09 22.356 +27 08 02.58 V C57
2023-11-06 08:35:07 s 1 +138021.66 2 +302479.62 720.0 C57
2023-11-06 08:55:07 S 05 09 17.184 +27 07 15.35 V C57
2023-11-06 08:55:07 s 1 +137320.84 4 +302575.98 1410.0 C57
2023-11-06 09:15:07 S 05 09 11.654 +27 06 25.74 V C57
2023-11-06 09:15:07 s 1 +136617.94 2 +302667.66 7130.0 C57
2023-11-06 09:35:07 S 05 09 06.319 +27 05 37.46 V C57
2023-11-06 09:35:07 s 1 +135912.97 1 +302754.66 7990.0 C57
2023-11-06 09:55:07 S 05 09 00.974 +27 04 49.98 V C57
2023-11-06 09:55:07 s 1 +135205.92 0 +302836.93 4050.0 C57
2023-11-06 10:15:07 S 05 08 55.692 +27 04 01.60 V C57
2023-11-06 10:15:07 s 1 +134496.80 4 +302914.48 5430.0 C57
2023-11-06 10:35:07 S 05 08 50.357 +27 03 14.08 V C57
2023-11-06 10:35:07 s 1 +133785.63 6 +302987.31 2230.0 C57
2023-11-06 10:55:07 S 05 08 44.950 +27 02 25.48 V C57
2023-11-06 10:55:07 s 1 +133072.40 6 +303055.37 4530.0 C57
2023-11-06 11:15:07 S 05 08 39.598 +27 01 37.52 V C57
2023-11-06 11:15:07 s 1 +132357.12 7 +303118.67 2430.0 C57
2023-11-06 11:35:07 S 05 08 34.226 +27 00 48.35 V C57
2023-11-06 11:35:07 s 1 +131639.81 5 +303177.21 6050.0 C57
2023-11-06 11:55:07 S 05 08 28.894 +27 00 00.58 V C57
2023-11-06 11:55:07 s 1 +130920.45 8 +303230.95 5460.0 C57
2023-11-06 12:15:07 S 05 08 23.575 +26 59 13.31 V C57
2023-11-06 12:15:07 s 1 +130199.07 1 +303279.88 780.0 C57
2023-11-06 12:35:07 S 05 08 18.228 +26 58 24.78 V C57
2023-11-06 12:35:07 s 1 +129475.66 7 +303324.02 2110.0 C57
2023-11-06 12:55:07 S 05 08 12.869 +26 57 36.18 V C57
2023-11-06 12:55:07 s 1 +128750.23 7 +303363.31 9530.0 C57
2023-11-06 13:15:07 S 05 08 07.562 +26 56 48.88 V C57
2023-11-06 13:15:07 s 1 +128022.79 5 +303397.76 3160.0 C57
2023-11-06 13:35:07 S 05 08 02.275 +26 56 00.24 V C57
2023-11-06 13:35:07 s 1 +127293.35 5 +303427.37 3100.0 C57
2023-11-06 13:55:07 S 05 07 56.938 +26 55 12.14 V C57
2023-11-06 13:55:07 s 1 +126561.90 6 +303452.08 9440.0 C57
2023-11-06 14:15:07 S 05 07 51.540 +26 54 23.18 V C57
2023-11-06 14:15:07 s 1 +125828.46 4 +303471.92 2290.0 C57
2023-11-06 19:17:48 C 05 06 21.672 +26 33 22.26 W M01
2023-11-06 19:20:18 C 05 06 21.038 +26 33 16.67 W M01
2023-11-06 19:22:48 C 05 06 20.403 +26 33 11.07 W M01
2023-11-06 20:13:22 C 05 06 07.385 +26 31 17.25 W M01
2023-11-06 20:15:52 C 05 06 06.743 +26 31 11.64 W M01
2023-11-06 20:18:22 C 05 06 06.102 +26 31 06.03 W M01
2023-11-06 20:19:04 C 05 06 05.927 +26 31 04.45 W M01
2023-11-06 20:21:34 C 05 06 05.285 +26 30 58.83 W M01