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
2024-03-20 00:13:26 C 14 03 45.749 +04 11 34.94 V M22
2024-03-20 00:24:38 C 14 03 44.705 +04 11 38.54 V M22
2024-03-20 17:13:21 C 14 02 13.148 +04 16 09.77 O18
2024-03-20 19:02:17 C 14 02 03.100 +04 16 39.88 O18
2024-03-21 17:55:00 C 13 59 57.465 +04 22 55.29 O18
2024-03-21 19:40:14 C 13 59 47.673 +04 23 23.93 O18
2024-03-21 21:15:10 C 13 59 38.785 +04 23 49.66 O18
2024-03-27 20:58:51 C 13 46 13.564 +05 00 36.96 O18
2024-03-27 21:00:20 C 13 46 13.426 +05 00 37.52 O18
2024-03-30 17:30:00 C 13 39 46.581 +05 16 18.22 O18
2024-03-30 18:25:50 C 13 39 41.236 +05 16 30.31 O18
2024-03-30 20:52:16 C 13 39 27.255 +05 17 02.31 O18
2024-03-31 17:41:51 C 13 37 30.139 +05 21 30.16 O18
2024-03-31 18:37:41 C 13 37 24.835 +05 21 41.89 O18
2024-03-31 21:04:50 C 13 37 10.813 +05 22 12.73 O18
2024-04-01 08:53:25 C 13 36 04.829 +05 24 42.12 X F51
2024-04-01 09:09:30 C 13 36 03.300 +05 24 45.45 X F51
2024-04-01 09:25:36 C 13 36 01.766 +05 24 48.78 X F51
2024-04-01 09:41:41 C 13 36 00.237 +05 24 52.12 X F51
2024-04-01 16:10:18 C 13 35 23.904 +05 26 09.93 O18
2024-04-01 18:52:49 C 13 35 08.466 +05 26 42.95 O18
2024-04-03 22:16:35 C 13 30 21.737 +05 36 48.71 V M22
2024-04-03 22:26:29 C 13 30 20.774 +05 36 50.72 V M22
2024-04-03 22:53:05 C 13 30 18.281 +05 36 55.66 V M22
2024-04-04 09:25:38 C 13 29 19.712 +05 38 45.64 V 703
2024-04-04 09:28:56 C 13 29 19.349 +05 38 45.28 V 703
2024-04-04 09:32:14 C 13 29 19.086 +05 38 45.20 V 703
2024-04-04 09:35:33 C 13 29 18.740 +05 38 46.18 V 703
2024-04-07 08:20:48 C 13 22 51.755 +05 50 40.20 V 703
2024-04-07 08:24:03 C 13 22 51.456 +05 50 40.74 V 703
2024-04-07 08:27:17 C 13 22 51.193 +05 50 40.88 V 703
2024-04-07 08:30:32 C 13 22 50.884 +05 50 40.81 V 703
2024-04-08 10:04:39 C 13 20 33.566 +05 54 32.51 X F51
2024-04-08 10:22:55 C 13 20 31.915 +05 54 35.17 X F51
2024-04-08 10:41:09 C 13 20 30.258 +05 54 37.77 X F51
2024-04-08 10:59:35 C 13 20 28.588 +05 54 40.44 X F51
2024-04-08 12:26:48 C 13 20 20.676 +05 54 52.88 V T05
2024-04-08 12:55:33 C 13 20 18.072 +05 54 57.24 V T05
2024-04-08 13:13:36 C 13 20 16.438 +05 54 59.94 V T05
2024-04-10 08:10:04 C 13 16 29.802 +06 00 47.34 V 703
2024-04-10 08:13:18 C 13 16 29.464 +06 00 46.73 V 703
2024-04-10 08:16:33 C 13 16 29.226 +06 00 47.77 V 703
2024-04-10 08:19:48 C 13 16 28.916 +06 00 47.88 V 703
2024-04-12 08:21:52 C 13 12 21.125 +06 06 25.45 V G96
2024-04-12 08:29:19 C 13 12 20.488 +06 06 25.99 V G96
2024-04-12 08:36:47 C 13 12 19.840 +06 06 27.04 V G96
2024-04-12 08:44:14 C 13 12 19.249 +06 06 27.22 V G96
2024-04-16 09:51:49 C 13 04 20.808 +06 15 01.30 V T05
2024-04-16 10:41:21 C 13 04 16.764 +06 15 04.18 V T05
2024-04-16 11:17:11 C 13 04 13.910 +06 15 06.01 V T05