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
2004-03-15 21:47:46 C 16 24 01.64 +71 34 50.9 c J81
2004-03-15 21:59:02 C 16 23 47.53 +71 35 00.1 c J81
2004-03-16 19:23:29 C 15 56 35.39 +71 45 09.2 o A17
2004-03-16 21:15:42 C 15 54 13.50 +71 45 26.1 o A17
2004-03-16 23:34:50 C 15 51 16.94 +71 45 37.5 c 127
2004-03-16 23:40:45 C 15 51 09.40 +71 45 38.0 c 127
2004-03-16 23:45:33 C 15 51 03.34 +71 45 38.2 c 127
2004-03-16 23:51:52 C 15 50 55.30 +71 45 38.3 c 127
2004-03-16 23:58:39 C 15 50 46.64 +71 45 38.6 c 127
2004-03-17 20:44:19 C 15 24 50.17 +71 38 27.4 o A17
2004-03-17 21:26:30 C 15 23 58.36 +71 38 01.8 o A17
2004-03-17 21:57:11 C 15 23 20.56 +71 37 41.6 c 127
2004-03-17 22:03:13 C 15 23 13.24 +71 37 37.9 c 127
2004-03-17 22:09:26 C 15 23 05.63 +71 37 34.0 c 127
2004-03-17 22:14:38 C 15 22 59.20 +71 37 30.2 c 127
2004-03-17 22:26:13 C 15 22 44.97 +71 37 22.9 c 127
2004-03-17 23:17:42 C 15 21 41.83 +71 36 49.6 c 215
2004-03-17 23:18:16 C 15 21 41.15 +71 36 49.4 c 215
2004-03-17 23:18:48 C 15 21 40.41 +71 36 49.0 c 215
2004-03-17 23:47:37 C 15 21 04.80 +71 36 28.0 o A16
2004-03-17 23:51:26 C 15 21 00.05 +71 36 25.5 o A16
2004-03-17 23:54:42 C 15 20 56.17 +71 36 23.5 o A16
2004-03-18 00:03:21 C 15 20 45.58 +71 36 17.2 o A16
2004-03-18 10:26:43 C 15 08 12.69 +71 27 02.3 c 926
2004-03-18 10:27:12 C 15 08 11.97 +71 27 01.7 c 926
2004-03-18 10:27:44 C 15 08 11.27 +71 27 01.1 c 926
2004-03-18 16:50:41 C 15 00 41.01 +71 19 43.1 c D70
2004-03-18 16:52:46 C 15 00 38.45 +71 19 40.4 c D70
2004-03-18 16:54:21 C 15 00 36.68 +71 19 39.0 c D70
2004-03-18 16:58:03 C 15 00 32.07 +71 19 34.3 c D70
2004-03-18 16:59:57 C 15 00 29.90 +71 19 32.2 c D70
2004-03-19 18:27:30 14 32 04.28 +70 39 49.7 o 084
2004-03-20 04:53:56 C 14 21 12.83 +70 19 35.5 15.6 d H72
2004-03-20 04:54:15 C 14 21 12.50 +70 19 34.9 15.5 d H72
2004-03-20 04:54:33 C 14 21 12.16 +70 19 34.3 15.8 d H72
2004-03-20 04:54:51 C 14 21 11.75 +70 19 33.5 15.8 d H72
2004-03-20 05:16:11 C 14 20 49.99 +70 18 50.9 16.0 d H72
2004-03-20 05:16:39 C 14 20 49.47 +70 18 49.4 16.0 d H72
2004-03-20 05:17:06 C 14 20 49.09 +70 18 48.7 15.9 d H72
2004-03-20 05:17:33 C 14 20 48.57 +70 18 48.3 15.9 d H72
2004-03-20 14:54:49 C 14 11 14.68 +69 57 54.0 379
2004-03-20 14:56:57 C 14 11 12.78 +69 57 49.8 379
2004-03-20 15:01:16 C 14 11 08.54 +69 57 40.0 379
2004-03-21 02:10:09 C 14 00 35.02 +69 31 22.2 o 939
2004-03-21 02:12:20 C 14 00 33.04 +69 31 17.1 o 939
2004-03-21 02:14:28 C 14 00 31.04 +69 31 11.9 o 939
2004-03-22 02:40:57 C 13 39 26.25 +68 26 46.1 o J95
2004-03-22 02:45:02 C 13 39 22.93 +68 26 34.6 o J95
2004-03-22 02:49:05 C 13 39 19.63 +68 26 23.3 o J95
2004-03-25 20:14:01 C 12 42 42.00 +63 44 17.9 c 938