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
2007-04-02 08:27:25 C 13 24 54.56 +11 49 13.5 r H45
2007-04-02 08:30:21 C 13 24 54.25 +11 49 14.5 r H45
2007-04-02 08:37:03 C 13 24 53.48 +11 49 14.9 r H45
2007-04-02 08:39:15 C 13 24 53.20 +11 49 14.8 r H45
2007-04-02 08:40:52 C 13 24 53.01 +11 49 15.2 r H45
2007-04-06 23:43:10 C 13 12 49.934 +11 58 02.8 r 084
2007-04-06 23:47:20 C 13 12 49.487 +11 58 02.6 r 084
2007-04-08 04:41:50 C 13 09 48.90 +11 59 18.1 r 808
2007-04-08 04:50:30 C 13 09 47.92 +11 59 18.5 r 808
2007-04-08 05:00:29 C 13 09 47.07 +11 59 18.6 r 808
2007-04-08 19:16:09 C 13 08 19.56 +11 59 29.5 o 151
2007-04-08 19:20:34 C 13 08 19.11 +11 59 29.8 o 151
2007-04-08 19:25:00 C 13 08 18.66 +11 59 30.5 o 151
2007-04-09 14:22:38 C 13 06 22.93 +11 59 56.5 r E12
2007-04-09 14:42:11 C 13 06 20.91 +11 59 57.0 r E12
2007-04-09 15:01:46 C 13 06 18.93 +11 59 57.5 r E12
2007-04-09 15:21:19 C 13 06 16.92 +11 59 57.6 r E12
2007-04-09 22:36:52 C 13 05 33.45 +11 59 51.2 18.3 r 130
2007-04-09 22:40:29 C 13 05 33.04 +11 59 51.2 18.2 r 130
2007-04-09 22:42:40 C 13 05 32.87 +11 59 51.3 18.0 r 130
2007-04-09 22:44:50 C 13 05 32.61 +11 59 51.5 18.2 r 130
2007-04-09 23:03:59 C 13 05 30.552 +11 59 49.4 r 084
2007-04-09 23:08:09 C 13 05 30.205 +11 59 50.3 r 084
2007-04-11 22:56:21 C 13 00 48.80 +11 59 26.1 c B23
2007-04-11 22:59:45 C 13 00 48.42 +11 59 26.4 c B23
2007-04-11 23:03:09 C 13 00 48.09 +11 59 25.5 c B23
2007-04-11 23:06:33 C 13 00 47.79 +11 59 25.1 c B23
2007-04-15 06:25:09 C 12 53 25.80 +11 55 58.9 r 703
2007-04-15 06:34:37 C 12 53 24.79 +11 56 01.7 r 703
2007-04-15 06:44:09 C 12 53 24.03 +11 55 57.7 r 703
2007-04-15 06:53:42 C 12 53 23.17 +11 55 57.1 r 703
2007-04-16 07:50:52 C 12 51 10.70 +11 54 10.7 r H45
2007-04-16 07:52:57 C 12 51 10.55 +11 54 10.8 r H45
2007-04-16 07:54:40 C 12 51 10.38 +11 54 10.6 r H45
2007-04-16 07:56:21 C 12 51 10.21 +11 54 10.6 r H45
2007-04-16 07:58:05 C 12 51 10.10 +11 54 10.6 r H45
2007-04-24 07:35:04 C 12 36 08.56 +11 31 08.8 r 703
2007-04-24 07:44:25 C 12 36 07.95 +11 31 06.6 r 703
2007-04-24 07:53:48 C 12 36 07.23 +11 31 05.8 r 703
2007-04-24 08:03:09 C 12 36 06.55 +11 31 04.0 r 703
2007-05-13 06:10:09 C 12 13 37.09 +09 49 37.9 r 703
2007-05-13 06:20:13 C 12 13 36.76 +09 49 34.3 r 703
2007-05-13 06:30:21 C 12 13 36.22 +09 49 33.7 r 703
2007-05-13 06:40:27 C 12 13 36.04 +09 49 28.0 r 703
2010-01-30 13:49:27 S 14 50 30.823 -04 42 21.13 L C51
2010-01-30 16:59:58 S 14 50 30.840 -04 42 24.34 L C51
2010-01-30 20:10:29 S 14 50 30.799 -04 42 26.86 L C51
2010-01-30 23:21:00 S 14 50 30.814 -04 42 29.63 L C51
2010-01-30 23:21:11 S 14 50 30.830 -04 42 29.63 L C51
2010-01-31 00:56:21 S 14 50 30.782 -04 42 31.03 L C51