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
2004-06-03 03:58:54 C 11 21 11.29 +17 21 42.6 c 926
2005-03-13 13:36:20 C 14 47 24.11 -19 35 29.8 o F65
2005-03-13 13:39:44 C 14 47 23.99 -19 35 30.2 o F65
2005-03-13 13:43:06 C 14 47 23.85 -19 35 30.1 o F65
2005-03-13 13:47:15 C 14 47 23.73 -19 35 30.1 o F65
2007-01-05 13:03:29 C 15 30 49.44 +03 27 51.6 r 448
2007-01-05 13:06:46 C 15 30 49.44 +03 27 52.1 r 448
2007-01-05 13:08:56 C 15 30 49.48 +03 27 52.0 r 448
2007-02-17 12:07:12 C 15 09 11.54 +06 18 33.2 c 711
2007-02-17 12:16:35 C 15 09 10.97 +06 18 36.3 c 711
2007-02-17 12:25:56 C 15 09 10.38 +06 18 39.5 c 711
2007-02-21 09:48:10 C 15 03 14.17 +06 50 44.8 17.9 c 704
2007-02-21 10:05:22 C 15 03 12.96 +06 50 50.8 17.9 c 704
2007-02-21 10:22:30 C 15 03 11.76 +06 50 57.0 18.2 c 704
2007-02-21 10:39:40 C 15 03 10.55 +06 51 02.7 18.6 c 704
2007-02-21 10:56:51 C 15 03 09.37 +06 51 09.2 18.3 c 704
2007-03-11 09:24:54 C 14 25 06.63 +09 33 03.0 r 703
2007-03-11 09:34:17 C 14 25 05.59 +09 33 07.3 r 703
2007-03-11 09:43:41 C 14 25 04.54 +09 33 09.9 r 703
2007-03-11 09:53:00 C 14 25 03.57 +09 33 13.7 r 703
2007-03-15 22:07:11 C 14 13 12.41 +10 11 16.2 r B28
2007-03-15 22:47:40 C 14 13 07.88 +10 11 28.9 r B28
2007-03-16 22:59:13 C 14 10 23.84 +10 19 30.0 c 046
2007-03-16 23:00:38 C 14 10 23.66 +10 19 30.4 c 046
2007-03-16 23:02:18 C 14 10 23.46 +10 19 31.0 c 046
2007-03-16 23:03:26 C 14 10 23.36 +10 19 31.3 c 046
2007-03-16 23:04:30 C 14 10 23.22 +10 19 31.6 c 046
2007-03-17 09:34:03 C 14 09 11.22 +10 22 58.1 r H45
2007-03-17 09:36:14 C 14 09 10.99 +10 22 58.5 r H45
2007-03-17 09:37:41 C 14 09 10.82 +10 22 59.1 r H45
2007-03-17 09:39:02 C 14 09 10.66 +10 22 59.4 r H45
2007-03-17 09:40:21 C 14 09 10.52 +10 22 59.7 r H45
2007-03-22 09:50:24 C 13 55 15.87 +10 58 35.3 r H45
2007-03-22 09:52:04 C 13 55 15.67 +10 58 35.7 r H45
2007-03-22 09:53:33 C 13 55 15.51 +10 58 35.9 r H45
2007-03-22 09:54:56 C 13 55 15.34 +10 58 36.4 r H45
2007-03-22 09:56:25 C 13 55 15.16 +10 58 36.8 r H45
2007-03-25 02:07:02 C 13 47 44.211 +11 14 38.4 r 084
2007-03-25 09:22:45 C 13 46 53.15 +11 16 21.7 r H45
2007-03-25 09:24:01 C 13 46 53.02 +11 16 22.1 r H45
2007-03-25 09:25:57 C 13 46 52.79 +11 16 22.1 r H45
2007-03-25 09:32:20 C 13 46 52.03 +11 16 23.6 r H45
2007-03-25 09:33:44 C 13 46 51.82 +11 16 24.4 r H45
2007-03-29 01:03:34 C 13 36 40.449 +11 34 07.8 r 084
2007-03-29 01:07:45 C 13 36 39.950 +11 34 08.9 r 084
2007-04-01 08:49:51 C 13 27 33.56 +11 46 21.7 r H45
2007-04-01 08:51:36 C 13 27 33.31 +11 46 22.1 r H45
2007-04-01 08:53:26 C 13 27 33.16 +11 46 22.2 r H45
2007-04-01 08:56:00 C 13 27 32.82 +11 46 23.0 r H45
2007-04-01 08:58:42 C 13 27 32.51 +11 46 23.1 r H45