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
2004-03-25 20:19:00 C 12 42 39.61 +63 44 01.6 c 938
2004-03-25 20:23:59 C 12 42 37.11 +63 43 44.7 c 938
2004-03-28 06:26:02 C 12 18 30.47 +60 27 15.5 c 670
2004-03-28 07:35:23 C 12 18 05.47 +60 23 21.5 c 670
2004-03-28 08:57:36 C 12 17 36.10 +60 18 42.8 c 670
2004-03-28 20:05:30 C 12 13 51.92 +59 41 04.1 o 151
2004-03-28 20:06:29 C 12 13 51.61 +59 41 00.5 o 151
2004-03-28 20:07:10 C 12 13 51.37 +59 40 58.3 o 151
2004-03-28 20:07:47 C 12 13 51.19 +59 40 56.4 o 151
2004-03-28 20:08:59 C 12 13 50.77 +59 40 51.9 o 151
2004-03-28 20:09:43 C 12 13 50.50 +59 40 49.6 o 151
2004-03-28 20:10:21 C 12 13 50.30 +59 40 47.2 o 151
2004-03-28 20:11:02 C 12 13 50.08 +59 40 44.8 o 151
2004-03-28 20:55:14 12 13 34.86 +59 38 15.3 o 084
2004-03-28 21:57:55 C 12 13 14.71 +59 34 46.8 c 127
2004-03-28 22:05:00 C 12 13 12.36 +59 34 22.9 c 127
2004-03-28 22:11:07 C 12 13 10.35 +59 34 02.3 c 127
2004-03-28 22:17:55 C 12 13 08.08 +59 33 39.8 c 127
2004-03-28 22:29:21 C 12 13 04.34 +59 33 01.4 c 127
2004-03-28 22:34:59 C 12 13 02.49 +59 32 42.5 c 127
2004-03-28 23:11:02 C 12 12 50.39 +59 30 42.5 c 046
2004-03-28 23:12:20 C 12 12 49.95 +59 30 37.7 c 046
2004-03-28 23:13:07 C 12 12 49.73 +59 30 35.1 c 046
2004-03-28 23:13:54 C 12 12 49.47 +59 30 32.8 c 046
2004-03-28 23:14:40 C 12 12 49.20 +59 30 30.3 c 046
2004-03-28 23:15:27 C 12 12 48.94 +59 30 27.6 c 046
2004-03-28 23:16:14 C 12 12 48.69 +59 30 24.7 c 046
2004-03-28 23:17:01 C 12 12 48.41 +59 30 22.4 c 046
2004-03-29 20:42:03 12 06 16.54 +58 18 44.2 o 084
2004-03-29 20:51:15 C 12 06 14.25 +58 18 15.2 o A17
2004-03-29 21:41:44 C 12 05 58.20 +58 15 14.3 o A17
2004-03-29 21:47:57 C 12 05 57.63 +58 15 07.5 o A16
2004-03-29 21:54:26 C 12 05 55.70 +58 14 47.4 o A16
2004-03-29 21:57:42 C 12 05 54.84 +58 14 36.3 o A16
2004-03-29 21:59:51 C 12 05 54.07 +58 14 28.8 o A16
2004-03-29 22:05:17 C 12 05 52.63 +58 14 11.4 o A16
2004-03-30 21:23:24 C 11 59 34.71 +56 57 29.6 c 127
2004-03-30 21:28:29 C 11 59 33.40 +56 57 13.2 c 127
2004-03-30 21:31:09 11 59 32.15 +56 57 02.7 o 084
2004-03-30 21:34:31 C 11 59 31.82 +56 56 53.8 c 127
2004-03-30 21:36:05 11 59 30.89 +56 56 46.5 o 084
2004-03-30 21:40:31 C 11 59 30.25 +56 56 34.2 c 127
2004-03-30 21:47:59 C 11 59 28.32 +56 56 09.9 c 127
2004-04-01 06:32:03 C 11 51 46.62 +55 11 03.2 c 926
2004-04-01 06:33:34 C 11 51 46.24 +55 10 57.8 c 926
2004-04-01 06:34:57 C 11 51 45.89 +55 10 52.8 c 926
2004-04-01 22:50:35 11 48 22.14 +54 19 41.6 o 084
2004-04-02 03:39:23 C 11 47 25.78 +54 04 49.8 c 750
2004-04-02 03:43:05 C 11 47 25.03 +54 04 38.3 c 750
2004-04-02 03:46:47 C 11 47 24.30 +54 04 26.8 c 750