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
2000-01-11 03:25:00 C 03 00 22.11 +03 20 22.0 18.8 a 704
2001-01-26 05:20:30 C 08 23 32.19 -33 53 09.7 808
2001-01-29 04:22:44 C 08 16 36.19 -34 10 10.1 808
2001-01-29 05:43:09 C 08 16 28.01 -34 10 25.8 808
2001-02-06 13:34:56 C 07 55 58.36 -34 23 22.2 474
2001-02-06 13:41:34 C 07 55 57.63 -34 23 21.7 474
2001-02-06 14:03:34 C 07 55 55.38 -34 23 19.7 474
2001-02-20 01:32:25 C 07 23 23.18 -32 51 45.8 808
2001-02-20 02:37:59 C 07 23 16.89 -32 51 13.5 808
2001-10-24 09:49:39 C 06 36 50.87 +13 15 04.5 18.4 c 704
2001-10-24 10:13:07 C 06 36 49.87 +13 14 47.7 18.5 c 704
2001-10-24 10:36:16 C 06 36 48.94 +13 14 30.3 18.1 c 704
2001-10-24 10:59:16 C 06 36 47.89 +13 14 14.8 18.1 c 704
2001-10-24 11:22:19 C 06 36 46.78 +13 13 59.1 18.4 c 704
2001-11-11 00:31:19 C 06 11 09.92 +08 12 06.8 c 198
2001-11-11 00:35:54 C 06 11 09.56 +08 12 03.5 c 198
2001-11-11 00:45:08 C 06 11 08.83 +08 11 56.9 c 198
2001-11-15 02:24:19 C 06 03 07.83 +07 03 25.2 c 198
2001-11-15 02:29:31 C 06 03 07.39 +07 03 21.7 c 198
2001-11-15 02:37:50 C 06 03 06.67 +07 03 15.7 c 198
2001-11-15 02:45:36 C 06 03 06.03 +07 03 10.3 c 198
2001-12-07 06:54:31 C 05 13 19.36 +01 53 36.0 18.4 c 704
2001-12-07 07:16:10 C 05 13 17.32 +01 53 26.6 18.5 c 704
2001-12-07 07:37:50 C 05 13 15.27 +01 53 16.8 18.4 c 704
2001-12-07 07:59:32 C 05 13 13.24 +01 53 08.0 18.5 c 704
2001-12-07 08:21:13 C 05 13 11.15 +01 52 58.7 18.6 c 704
2001-12-10 05:00:50 C 05 06 55.02 +01 25 12.6 18.0 c 704
2001-12-10 05:23:08 C 05 06 52.97 +01 25 04.7 19.0 c 704
2001-12-10 05:45:16 C 05 06 50.94 +01 24 55.7 18.2 c 704
2001-12-10 06:07:25 C 05 06 48.90 +01 24 47.2 18.6 c 704
2001-12-10 06:29:22 C 05 06 46.89 +01 24 39.1 18.6 c 704
2001-12-11 22:40:22 C 05 03 12.79 +01 09 58.3 209
2001-12-11 23:30:47 C 05 03 08.32 +01 09 40.8 209
2001-12-12 00:21:09 C 05 03 03.82 +01 09 23.3 209
2001-12-25 13:10:53 C 04 38 06.10 -00 07 04.4 20.3 c 608
2001-12-25 13:26:12 C 04 38 05.13 -00 07 05.8 20.1 c 608
2001-12-25 13:40:43 C 04 38 04.17 -00 07 06.9 19.8 c 608
2002-01-12 03:50:37 C 04 18 12.88 -00 14 13.5 19.4 c 704
2002-01-12 04:12:56 C 04 18 12.18 -00 14 13.0 19.9 c 704
2002-01-12 04:35:17 C 04 18 11.46 -00 14 10.1 19.3 c 704
2002-01-12 04:57:57 C 04 18 10.71 -00 14 08.5 19.6 c 704
2002-01-12 05:20:13 C 04 18 10.03 -00 14 07.4 19.3 c 704
2002-02-14 03:24:27 C 04 14 36.63 +01 53 59.2 c 711
2002-02-14 03:42:59 C 04 14 36.95 +01 54 03.0 c 711
2002-02-14 04:01:30 C 04 14 37.23 +01 54 06.2 c 711
2003-02-24 15:27:38 C 09 57 51.19 -74 50 06.3 c 322
2003-02-24 15:47:32 C 09 57 44.01 -74 50 55.7 c 322
2003-02-24 15:54:39 C 09 57 41.67 -74 51 12.0 c 322
2003-02-27 12:08:35 C 09 27 32.05 -77 37 36.9 433
2003-02-27 12:09:18 C 09 27 31.69 -77 37 38.9 433