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
2003-02-27 12:10:01 C 09 27 31.21 -77 37 40.4 433
2003-02-27 12:12:36 C 09 27 29.74 -77 37 46.4 433
2003-02-27 12:13:19 C 09 27 29.29 -77 37 48.4 433
2003-03-01 12:43:37 C 08 54 17.67 -79 30 49.7 433
2003-03-01 12:45:02 C 08 54 16.50 -79 30 52.8 433
2003-03-01 12:46:28 C 08 54 15.27 -79 30 56.0 433
2003-03-01 12:47:52 C 08 54 14.01 -79 30 59.1 433
2003-03-01 12:49:19 C 08 54 12.91 -79 31 02.3 433
2003-03-01 12:50:49 C 08 54 11.63 -79 31 05.7 433
2003-03-01 12:52:19 C 08 54 10.32 -79 31 08.8 433
2003-03-01 12:53:46 C 08 54 09.15 -79 31 11.7 433
2003-12-13 06:22:26 C 06 01 58.98 -03 10 16.7 19.4 c 704
2003-12-13 06:41:27 C 06 01 57.58 -03 10 23.6 19.4 c 704
2003-12-13 07:19:43 C 06 01 54.57 -03 10 34.2 19.5 c 704
2003-12-13 07:38:34 C 06 01 53.05 -03 10 39.3 19.4 c 704
2006-01-23 05:35:22 C 05 42 02.23 -07 48 26.4 r 703
2006-01-23 05:45:23 C 05 42 01.72 -07 48 23.8 r 703
2006-01-23 05:55:26 C 05 42 01.26 -07 48 21.5 r 703
2006-01-23 06:05:29 C 05 42 00.86 -07 48 19.2 r 703
2006-02-04 03:06:53 C 05 31 10.63 -06 38 15.0 r 703
2006-02-04 03:41:45 C 05 31 09.45 -06 38 05.2 r 703
2006-03-25 02:53:26 C 05 33 38.989 -00 45 54.86 n 645
2006-03-25 02:54:37 C 05 33 39.011 -00 45 54.60 n 645
2006-03-25 02:58:12 C 05 33 39.104 -00 45 53.67 n 645
2009-01-05 18:24:52 C 22 58 41.43 +01 50 37.1 r B60
2009-01-05 18:30:07 C 22 58 42.67 +01 50 39.8 r B60
2009-01-05 18:35:01 C 22 58 43.81 +01 50 42.1 r B60
2009-01-05 18:35:11 C 22 58 43.85 +01 50 42.3 r B60
2009-01-05 18:40:01 C 22 58 44.97 +01 50 44.4 r B60
2010-03-18 20:19:08 S 06 14 52.709 -09 55 16.75 L C51
2010-03-19 02:40:21 S 06 14 55.140 -09 52 13.73 L C51
2010-03-19 07:26:13 S 06 14 56.966 -09 49 55.99 L C51
2010-03-19 12:11:54 S 06 14 58.949 -09 47 43.04 L C51
2010-03-19 20:08:17 S 06 15 02.386 -09 43 51.06 L C51
2010-03-19 23:18:48 S 06 15 03.794 -09 42 20.09 L C51
2010-11-03 03:13:27 C 18 26 36.69 +38 40 42.2 o G68
2010-11-03 03:28:28 C 18 26 50.55 +38 41 07.2 o G68
2010-11-03 03:43:28 C 18 27 04.44 +38 41 31.8 o G68
2010-11-03 03:58:27 C 18 27 18.34 +38 41 56.4 o G68
2010-11-07 03:20:07 C 20 05 02.49 +39 06 09.4 u H16
2010-11-07 03:20:30 C 20 05 02.87 +39 06 08.8 u H16
2010-11-07 03:20:51 C 20 05 03.30 +39 06 08.4 u H16
2010-11-07 03:21:14 C 20 05 03.67 +39 06 07.8 u H16
2010-11-07 03:21:35 C 20 05 04.07 +39 06 07.2 u H16
2010-11-07 03:21:59 C 20 05 04.46 +39 06 06.6 u H16
2010-11-07 03:22:20 C 20 05 04.84 +39 06 06.1 u H16
2010-11-07 03:22:44 C 20 05 05.22 +39 06 05.8 u H16
2010-11-07 03:23:05 C 20 05 05.62 +39 06 05.0 u H16
2010-11-07 03:23:28 C 20 05 06.01 +39 06 04.4 u H16
2010-11-07 07:02:50 S 20 09 00.641 +39 00 47.38 L C51