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
2004-03-10 10:31:16 C 18 42 06.03 +65 43 09.1 16.8 c 704
2004-03-10 11:03:11 C 18 41 40.94 +65 45 22.0 17.0 c 704
2004-03-10 11:19:34 C 18 41 28.10 +65 46 30.3 16.7 c 704
2004-03-10 11:35:14 C 18 41 15.66 +65 47 35.5 16.8 c 704
2004-03-11 01:47:04 C 18 29 45.33 +66 44 04.4 r 557
2004-03-11 01:48:00 C 18 29 44.56 +66 44 08.1 r 557
2004-03-11 01:49:27 C 18 29 43.33 +66 44 13.8 r 557
2004-03-11 01:51:18 C 18 29 41.79 +66 44 21.0 r 557
2004-03-11 12:00:59 C 18 20 55.08 +67 22 54.9 c 926
2004-03-11 12:02:01 C 18 20 54.13 +67 22 58.6 c 926
2004-03-11 12:02:58 C 18 20 53.20 +67 23 02.2 c 926
2004-03-11 12:03:18 C 18 20 53.24 +67 23 01.6 c 673
2004-03-11 12:05:10 C 18 20 51.53 +67 23 08.7 c 673
2004-03-11 12:08:09 C 18 20 48.89 +67 23 19.8 c 673
2004-03-11 12:12:40 C 18 20 44.84 +67 23 36.4 c 673
2004-03-11 12:16:10 C 18 20 41.73 +67 23 49.3 c 673
2004-03-11 12:22:09 C 18 20 36.31 +67 24 11.8 c 673
2004-03-13 19:10:31 C 17 25 12.43 +70 12 42.3 o 379
2004-03-13 19:13:49 C 17 25 08.62 +70 12 50.6 o 379
2004-03-13 19:15:29 C 17 25 06.77 +70 12 54.1 o 379
2004-03-13 19:32:00 C 17 24 47.89 +70 13 34.2 o 379
2004-03-13 19:35:18 C 17 24 44.17 +70 13 42.4 o 379
2004-03-13 19:36:58 C 17 24 42.22 +70 13 46.3 o 379
2004-03-14 02:16:04 C 17 17 05.24 +70 28 48.1 i A83
2004-03-14 19:22:35 C 16 56 48.96 +71 02 00.8 300
2004-03-14 19:25:13 C 16 56 45.70 +71 02 06.5 300
2004-03-14 19:27:53 C 16 56 42.59 +71 02 09.7 300
2004-03-14 19:30:35 C 16 56 39.36 +71 02 13.5 300
2004-03-14 19:33:15 C 16 56 35.98 +71 02 16.3 300
2004-03-14 19:35:54 C 16 56 32.93 +71 02 21.1 300
2004-03-14 19:38:34 C 16 56 29.19 +71 02 28.2 300
2004-03-14 19:41:13 C 16 56 26.10 +71 02 31.3 300
2004-03-14 20:10:58 C 16 55 51.29 +71 02 53.5 c J81
2004-03-14 20:22:56 C 16 55 36.92 +71 03 13.8 c J81
2004-03-14 20:50:46 C 16 55 03.34 +71 04 00.3 c J81
2004-03-15 11:33:31 C 16 36 52.28 +71 24 59.2 c 926
2004-03-15 11:34:28 C 16 36 50.98 +71 25 00.3 c 926
2004-03-15 11:35:23 C 16 36 49.75 +71 25 01.3 c 926
2004-03-15 18:00:27 C 16 28 47.45 +71 31 46.2 379
2004-03-15 18:09:52 C 16 28 35.50 +71 31 55.9 379
2004-03-15 20:58:43 C 16 25 03.26 +71 34 08.5 o 151
2004-03-15 20:59:16 C 16 25 02.59 +71 34 08.9 o 151
2004-03-15 20:59:48 C 16 25 01.94 +71 34 09.9 o 151
2004-03-15 21:00:45 C 16 25 00.73 +71 34 10.2 o 151
2004-03-15 21:02:06 C 16 24 59.01 +71 34 11.8 o 151
2004-03-15 21:05:03 C 16 24 55.32 +71 34 14.5 o 151
2004-03-15 21:05:35 C 16 24 54.74 +71 34 15.7 c 540
2004-03-15 21:08:50 C 16 24 50.63 +71 34 18.7 c 540
2004-03-15 21:12:06 C 16 24 46.52 +71 34 21.7 c 540
2004-03-15 21:35:17 C 16 24 17.33 +71 34 38.5 c J81