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
2024-03-10 19:33:24 C 14 22 40.115 +03 07 59.05 O18
2024-03-10 21:05:10 C 14 22 32.689 +03 08 25.66 O18
2024-03-11 11:49:14 C 14 21 21.636 +03 12 43.92 V 703
2024-03-11 11:52:31 C 14 21 21.326 +03 12 43.96 V 703
2024-03-11 11:55:48 C 14 21 21.024 +03 12 45.22 V 703
2024-03-11 11:59:05 C 14 21 20.801 +03 12 46.51 V 703
2024-03-11 22:08:59 C 14 20 31.421 +03 15 43.46 O18
2024-03-11 22:57:28 C 14 20 27.876 +03 16 05.45 V M22
2024-03-11 23:07:16 C 14 20 26.605 +03 16 00.37 O18
2024-03-11 23:38:13 C 14 20 24.427 +03 16 16.32 V M22
2024-03-11 23:40:51 C 14 20 24.218 +03 16 17.44 V M22
2024-03-12 00:03:41 C 14 20 22.382 +03 16 24.64 V M22
2024-03-13 14:07:13 C 14 17 13.620 +03 27 23.67 X F52
2024-03-13 14:24:12 C 14 17 12.170 +03 27 28.63 X F52
2024-03-13 14:41:09 C 14 17 10.724 +03 27 33.54 X F52
2024-03-13 14:58:05 C 14 17 09.276 +03 27 38.52 X F52
2024-03-14 06:29:43 C 14 15 51.192 +03 32 14.68 V W68
2024-03-14 06:33:44 C 14 15 50.854 +03 32 16.26 V W68
2024-03-14 06:41:34 C 14 15 50.174 +03 32 18.78 V W68
2024-03-14 07:20:53 C 14 15 46.793 +03 32 29.87 V W68
2024-03-15 09:58:33 C 14 13 30.859 +03 40 06.89 V T05
2024-03-15 10:03:08 C 14 13 30.446 +03 40 08.47 V T05
2024-03-15 10:11:03 C 14 13 29.693 +03 40 10.16 V T05
2024-03-15 10:28:08 C 14 13 28.202 +03 40 15.67 V T05
2024-03-16 00:13:08 C 14 12 16.848 +03 44 19.50 V M22
2024-03-16 00:17:43 C 14 12 16.488 +03 44 21.73 V M22
2024-03-16 00:57:08 C 14 12 12.982 +03 44 32.57 V M22
2024-03-16 01:11:53 C 14 12 11.693 +03 44 36.92 V M22
2024-03-17 10:27:00 C 14 09 17.467 +03 54 02.92 V T08
2024-03-17 10:32:08 C 14 09 16.980 +03 54 04.86 V T08
2024-03-17 10:40:34 C 14 09 16.226 +03 54 08.17 V T08
2024-03-17 11:31:21 C 14 09 11.662 +03 54 23.08 V T08
2024-03-17 19:55:54 C 14 08 26.900 +03 56 43.91 O18
2024-03-17 20:54:58 C 14 08 21.575 +03 57 00.67 O18
2024-03-18 03:51:50 C 14 07 44.921 +03 59 07.19 V W68
2024-03-18 03:56:26 C 14 07 44.515 +03 59 07.80 V W68
2024-03-18 04:01:39 C 14 07 44.054 +03 59 09.28 V W68
2024-03-18 04:29:09 C 14 07 41.563 +03 59 17.66 V W68
2024-03-18 13:32:37 C 14 06 52.787 +04 01 45.51 X F51
2024-03-18 14:05:40 C 14 06 49.777 +04 01 54.84 X F51
2024-03-18 14:22:12 C 14 06 48.274 +04 01 59.53 X F51
2024-03-19 11:50:46 C 14 04 52.846 +04 08 01.90 V T05
2024-03-19 11:55:20 C 14 04 52.469 +04 08 03.44 V T05
2024-03-19 12:27:05 C 14 04 49.505 +04 08 11.80 V T05
2024-03-19 12:32:45 C 14 04 49.015 +04 08 13.67 V T05
2024-03-19 17:50:41 C 14 04 20.463 +04 09 40.75 O18
2024-03-19 19:40:43 C 14 04 10.348 +04 10 11.37 O18
2024-03-19 21:48:07 C 14 03 58.613 +04 10 46.71 O18
2024-03-20 00:06:50 C 14 03 46.378 +04 11 33.40 V M22
2024-03-20 00:09:28 C 14 03 46.044 +04 11 34.19 V M22