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
2019-01-12 08:05:49 C 06 17 18.00 -10 48 34.9 V G96
2019-01-12 08:13:59 C 06 17 17.47 -10 48 34.4 V G96
2019-01-28 05:30:49 C 05 55 47.47 -09 44 55.0 o 691
2019-01-28 05:40:31 C 05 55 47.15 -09 44 53.5 o 691
2019-01-28 05:50:14 C 05 55 46.62 -09 44 51.1 o 691
2019-02-05 06:30:07 C 05 47 54.780 -08 51 19.25 U F52
2019-02-05 06:44:57 C 05 47 54.242 -08 51 14.80 U F52
2019-02-05 06:59:46 C 05 47 53.704 -08 51 10.32 U F52
2020-02-14 18:32:17 C 00 37 06.72 +07 23 17.1 V C95
2020-02-14 18:41:27 C 00 37 08.23 +07 23 21.9 V C95
2020-02-14 18:50:47 C 00 37 09.80 +07 23 25.7 V C95
2020-02-25 02:36:24 C 01 14 46.72 +09 08 33.5 U I41
2020-02-25 02:43:36 C 01 14 47.74 +09 08 36.3 U I41
2020-02-25 02:50:48 C 01 14 48.75 +09 08 38.9 U I41
2020-02-25 02:58:01 C 01 14 49.76 +09 08 41.8 U I41
2020-10-17 11:31:57 C 07 59 27.50 -01 05 49.1 V G96
2020-10-17 11:41:27 C 07 59 27.68 -01 05 54.0 V G96
2020-10-17 11:50:57 C 07 59 27.89 -01 05 59.4 V G96
2020-10-17 12:00:27 C 07 59 28.07 -01 06 03.5 V G96
2020-10-30 11:33:30 C 08 04 03.87 -03 50 06.0 V G96
2020-10-30 11:42:29 C 08 04 03.92 -03 50 10.8 V G96
2020-10-30 11:51:29 C 08 04 03.98 -03 50 16.0 V G96
2020-10-30 12:00:28 C 08 04 04.06 -03 50 20.4 V G96
2020-11-14 13:23:06 C 08 04 06.750 -07 09 28.70 U F52
2020-11-14 13:43:19 C 08 04 06.548 -07 09 40.26 U F52
2020-11-14 14:03:35 C 08 04 06.343 -07 09 51.34 U F52
2020-11-14 14:23:49 C 08 04 06.139 -07 10 02.48 U F52
2020-11-18 10:22:36 C 08 03 02.79 -08 01 08.2 V G96
2020-11-18 10:30:03 C 08 03 02.66 -08 01 11.7 V G96
2020-11-18 10:37:31 C 08 03 02.56 -08 01 15.8 V G96
2020-11-18 10:45:00 C 08 03 02.48 -08 01 20.5 V G96
2020-12-08 09:05:11 C 07 49 37.88 -12 13 01.3 V G96
2020-12-08 09:13:32 C 07 49 37.49 -12 13 05.5 V G96
2020-12-08 09:30:13 C 07 49 36.77 -12 13 13.3 V G96
2021-02-11 05:57:01 C 06 15 31.13 -13 20 12.6 V G96
2021-02-11 06:04:22 C 06 15 30.83 -13 20 09.7 V G96
2021-02-11 06:11:44 C 06 15 30.54 -13 20 06.6 V G96
2021-02-11 06:19:06 C 06 15 30.22 -13 20 03.9 V G96
2021-02-13 07:30:02 C 06 13 36.31 -13 00 49.8 V T05
2021-02-13 07:36:41 C 06 13 36.12 -13 00 48.5 V T05
2021-02-13 07:49:17 C 06 13 35.52 -13 00 42.0 V T05
2021-02-13 07:59:54 C 06 13 35.19 -13 00 37.5 V T05
2021-03-23 03:05:48 C 06 05 24.70 -06 34 37.1 V G96
2021-03-23 03:23:28 C 06 05 24.97 -06 34 30.3 V G96
2021-03-23 03:32:39 C 06 05 25.11 -06 34 26.8 V G96
2021-03-23 03:41:49 C 06 05 25.30 -06 34 23.5 V G96
2021-06-12 23:00:35 C 07 42 15.77 +00 05 59.4 X W84
2021-06-12 23:07:15 C 07 42 16.27 +00 05 59.3 X W84
2021-06-12 23:13:35 C 07 42 16.74 +00 05 59.2 X W84
2021-11-25 16:40:41 C 20 08 35.76 +01 17 59.3 V L18