164201 (2004 EC)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8600848851 ± 3.05e-08
Semi-major axis (a)1.9968627832 AU ± 1.31e-09
Inclination (i)34.58200983° ± 7.00e-06
Long. of Asc. Node (Ω)28.82252353° ± 5.91e-06
Arg. of Perihelion (ω)10.34006761° ± 6.63e-06
Mean Anomaly (M)262.66310102° ± 2.79e-06
Mean Motion (n)0.3492930480°/day ± 3.44e-10
Perihelion dist (q)0.27939129 AU ± 6.08e-08
Aphelion dist (Q)3.71433428 AU ± 6.09e-08
Orbital Period2.82177469 yr ± 2.78e-09
Physical Parameters
H (abs. magnitude)15.73
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.282″
Uncertainty0
Orbit TypeApollo
MOID0.412463 AU
Observations Used1059
Oppositions14
Arc Total2004-2025
First Observation Used2004-03-10
Last Observation Used2025-05-29
Observations (1134)
Date Type RA Dec Mag Band Observatory
2013-04-10 10:05:16 C 13 48 24.122 -07 31 53.25 L F51
2013-04-10 10:24:55 C 13 48 22.866 -07 31 49.46 L F51
2013-04-10 10:44:36 C 13 48 21.609 -07 31 45.73 L F51
2013-04-11 11:42:31 C 13 46 47.662 -07 26 55.73 L F51
2013-04-11 11:58:23 C 13 46 46.651 -07 26 52.73 L F51
2013-04-15 11:30:24 C 13 40 48.858 -07 08 27.23 L F51
2013-04-15 11:45:16 C 13 40 47.910 -07 08 24.22 L F51
2013-04-16 14:34:49 C 13 39 08.34 -07 03 13.4 q E12
2013-04-16 15:21:04 C 13 39 05.42 -07 03 04.8 q E12
2013-04-17 06:10:48 C 13 38 10.58 -07 00 16.0 L W84
2013-04-17 06:16:50 C 13 38 10.21 -07 00 14.9 L W84
2013-04-17 06:22:44 C 13 38 09.84 -07 00 13.8 L W84
2013-04-17 06:28:38 C 13 38 09.47 -07 00 12.7 L W84
2013-04-19 07:53:27 C 13 35 08.13 -06 50 55.8 L W84
2013-04-19 08:00:49 C 13 35 07.69 -06 50 54.4 L W84
2013-04-19 08:08:10 C 13 35 07.23 -06 50 53.1 L W84
2013-04-19 08:15:30 C 13 35 06.78 -06 50 51.7 L W84
2013-04-19 11:15:57 C 13 34 55.920 -06 50 21.77 L F51
2013-04-19 11:32:28 C 13 34 54.919 -06 50 18.83 L F51
2013-04-22 09:37:09 C 13 30 42.878 -06 37 29.67 L F51
2013-04-22 09:53:34 C 13 30 41.877 -06 37 26.88 L F51
2013-04-22 10:10:04 C 13 30 40.874 -06 37 23.70 L F51
2013-05-03 08:51:26 C 13 16 06.612 -05 54 28.78 L F51
2013-05-03 09:10:59 C 13 16 05.597 -05 54 26.00 L F51
2013-05-03 09:30:31 C 13 16 04.572 -05 54 23.14 L F51
2013-05-03 09:50:01 C 13 16 03.554 -05 54 20.36 L F51
2013-05-07 06:15:35 C 13 11 30.19 -05 41 47.9 u G96
2013-05-07 06:25:38 C 13 11 29.68 -05 41 46.1 u G96
2013-05-07 06:35:44 C 13 11 29.22 -05 41 44.8 u G96
2013-05-07 06:45:44 C 13 11 28.71 -05 41 43.9 u G96
2013-05-17 04:32:15 C 13 01 24.85 -05 17 00.4 u G96
2013-05-17 04:42:18 C 13 01 24.45 -05 16 59.7 u G96
2013-05-17 04:52:20 C 13 01 24.09 -05 16 59.0 u G96
2013-05-17 05:02:31 C 13 01 23.62 -05 16 59.8 u G96
2014-04-28 04:14:12 C 14 34 53.37 -29 30 25.4 L W84
2014-04-28 04:19:05 C 14 34 53.07 -29 30 24.9 L W84
2014-04-28 04:23:57 C 14 34 52.77 -29 30 24.4 L W84
2014-04-28 04:28:47 C 14 34 52.48 -29 30 23.9 L W84
2014-04-28 04:33:42 C 14 34 52.18 -29 30 23.4 L W84
2014-04-29 04:04:02 C 14 33 27.71 -29 27 51.0 L W84
2014-04-29 04:08:42 C 14 33 27.43 -29 27 50.5 L W84
2014-04-29 04:13:21 C 14 33 27.15 -29 27 49.9 L W84
2014-04-29 04:17:59 C 14 33 26.86 -29 27 49.4 L W84
2014-04-29 04:22:41 C 14 33 26.58 -29 27 48.9 L W84
2014-05-02 05:06:13 C 14 29 03.58 -29 18 56.5 L W84
2014-05-02 05:10:48 C 14 29 03.30 -29 18 55.9 L W84
2014-05-02 05:24:31 C 14 29 02.47 -29 18 54.1 L W84
2014-05-23 08:46:08 C 13 59 43.120 -27 42 23.69 L F51
2014-05-23 09:02:17 C 13 59 42.263 -27 42 19.73 L F51
2014-05-23 09:18:26 C 13 59 41.405 -27 42 15.97 L F51