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
2018-06-06 07:09:39 C 10 30 35.21 +25 35 29.6 U T05
2018-06-06 07:18:27 C 10 30 35.99 +25 35 19.9 U T05
2018-06-06 07:25:02 C 10 30 36.56 +25 35 11.4 U T05
2018-06-06 07:36:01 C 10 30 37.53 +25 35 00.0 U T05
2018-06-08 03:48:11 C 10 34 24.14 +24 46 33.3 U G96
2018-06-08 03:56:27 C 10 34 24.83 +24 46 24.3 U G96
2018-06-08 04:04:41 C 10 34 25.53 +24 46 15.1 U G96
2018-06-08 04:12:57 C 10 34 26.21 +24 46 06.9 U G96
2019-04-26 06:20:09 C 13 53 25.80 -15 46 14.4 V G96
2019-04-26 06:27:32 C 13 53 25.48 -15 46 14.1 V G96
2019-04-26 06:34:56 C 13 53 25.02 -15 46 11.7 V G96
2019-04-26 06:42:19 C 13 53 24.69 -15 46 10.5 V G96
2019-05-10 08:34:38 C 13 36 25.268 -14 44 34.48 U F51
2019-05-10 08:51:25 C 13 36 24.447 -14 44 31.34 U F51
2019-05-10 09:08:15 C 13 36 23.657 -14 44 28.26 U F51
2019-05-27 06:49:56 C 13 20 13.306 -13 38 34.11 U F51
2019-05-27 07:08:16 C 13 20 12.687 -13 38 31.49 U F51
2019-05-27 07:26:37 C 13 20 12.075 -13 38 29.07 U F51
2019-05-27 07:44:55 C 13 20 11.466 -13 38 26.52 U F51
2021-02-08 15:19:30 C 17 40 59.42 +19 41 12.8 V T08
2021-02-08 15:43:30 C 17 40 55.20 +19 41 47.8 V T08
2021-02-08 15:47:29 C 17 40 54.49 +19 41 53.6 V T08
2021-02-10 14:49:11 C 17 32 41.41 +20 48 51.1 V T05
2021-02-10 14:53:49 C 17 32 40.56 +20 48 57.7 V T05
2021-02-10 15:03:54 C 17 32 38.77 +20 49 12.3 V T05
2021-02-10 15:20:41 C 17 32 35.74 +20 49 36.3 V T05
2021-02-16 14:32:01 C 17 06 15.56 +24 07 40.9 V T08
2021-02-16 14:36:00 C 17 06 14.78 +24 07 46.4 V T08
2021-02-16 14:43:57 C 17 06 13.21 +24 07 57.3 V T08
2021-02-16 15:06:43 C 17 06 08.73 +24 08 28.5 V T08
2021-02-17 12:27:05 C 17 01 59.36 +24 37 11.4 V 703
2021-02-17 12:34:40 C 17 01 57.86 +24 37 21.7 V 703
2021-02-17 12:42:15 C 17 01 56.31 +24 37 31.5 V 703
2021-02-17 12:49:50 C 17 01 54.78 +24 37 41.8 V 703
2021-02-21 10:20:47 S 16 42 48.83 +26 40 41.4 L C51
2021-02-21 12:10:49 C 16 42 26.34 +26 42 59.4 V 703
2021-02-21 12:18:27 C 16 42 24.67 +26 43 08.9 V 703
2021-02-21 12:26:04 C 16 42 23.07 +26 43 18.8 V 703
2021-02-21 12:33:41 C 16 42 21.40 +26 43 28.7 V 703
2021-02-21 13:28:23 S 16 42 08.93 +26 44 40.9 L C51
2021-02-21 15:02:26 S 16 41 48.91 +26 46 40.9 L C51
2021-02-21 16:36:41 S 16 41 28.79 +26 48 41.4 L C51
2021-02-21 18:10:46 S 16 41 08.71 +26 50 41.5 L C51
2021-02-21 21:19:04 S 16 40 28.40 +26 54 41.4 L C51
2021-02-22 04:27:11 C 16 38 57.14 +27 03 39.8 V 160
2021-02-22 04:30:04 C 16 38 56.50 +27 03 43.8 V 160
2021-02-22 04:32:58 C 16 38 55.83 +27 03 47.3 V 160
2021-02-22 15:29:08 C 16 36 33.80 +27 17 40.8 V T05
2021-02-22 15:33:33 C 16 36 32.82 +27 17 46.6 V T05
2021-02-22 15:39:04 C 16 36 31.60 +27 17 53.6 V T05