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
2021-04-22 20:18:19 C 11 56 15.49 +24 01 47.1 V K87
2021-04-22 20:20:25 C 11 56 15.33 +24 01 45.4 V K87
2021-04-29 08:56:16 C 11 48 02.43 +21 58 40.8 V T08
2021-04-29 09:02:16 C 11 48 02.16 +21 58 36.1 V T08
2021-04-29 09:09:47 C 11 48 01.79 +21 58 30.2 V T08
2021-04-29 09:32:18 C 11 48 00.85 +21 58 13.2 V T08
2021-04-30 05:38:40 C 11 47 11.44 +21 42 58.9 Z U76
2021-04-30 05:57:10 C 11 47 10.69 +21 42 44.1 Z U76
2021-04-30 06:10:26 C 11 47 10.05 +21 42 34.5 V 703
2021-04-30 06:17:43 C 11 47 09.87 +21 42 29.0 Z U76
2021-04-30 06:18:03 C 11 47 09.79 +21 42 29.5 V 703
2021-04-30 06:25:40 C 11 47 09.52 +21 42 23.8 V 703
2021-04-30 06:33:16 C 11 47 09.21 +21 42 18.3 V 703
2021-05-01 07:46:50 C 11 46 11.20 +21 23 26.2 V T05
2021-05-01 07:58:52 C 11 46 10.70 +21 23 16.9 V T05
2021-05-01 08:03:35 C 11 46 10.59 +21 23 12.9 V T05
2021-05-01 08:18:38 C 11 46 09.96 +21 23 02.0 V T05
2021-05-06 05:44:27 C 11 42 32.67 +19 57 55.3 V G96
2021-05-06 05:51:52 C 11 42 32.49 +19 57 50.1 V G96
2021-05-06 05:59:19 C 11 42 32.29 +19 57 44.8 V G96
2021-05-06 06:06:45 C 11 42 32.08 +19 57 39.5 V G96
2021-05-09 07:34:38 C 11 40 56.11 +19 06 43.5 V T05
2021-05-09 07:38:44 C 11 40 55.97 +19 06 40.9 V T05
2021-05-09 07:46:38 C 11 40 55.87 +19 06 35.1 V T05
2021-05-09 08:01:40 C 11 40 55.53 +19 06 24.9 V T05
2021-05-11 08:52:18 C 11 40 06.56 +18 33 28.3 V T08
2021-05-11 08:56:56 C 11 40 06.52 +18 33 25.2 V T08
2021-05-11 09:05:03 C 11 40 06.35 +18 33 18.5 V T08
2021-05-11 09:32:49 C 11 40 05.87 +18 33 00.6 V T08
2021-05-15 06:54:04 C 11 39 02.80 +17 31 59.1 V T08
2021-05-15 07:21:19 C 11 39 02.53 +17 31 42.1 V T08
2021-05-15 07:35:21 C 11 39 02.42 +17 31 32.4 V T08
2021-05-15 07:39:19 C 11 39 02.36 +17 31 30.1 V T08
2021-05-19 03:24:56 C 11 38 34.35 +16 33 50.2 V G96
2021-05-19 03:33:05 C 11 38 34.31 +16 33 45.2 V G96
2021-05-19 03:41:13 C 11 38 34.29 +16 33 40.2 V G96
2021-05-19 03:49:22 C 11 38 34.25 +16 33 35.3 V G96
2021-06-06 03:35:06 C 11 41 59.14 +12 28 07.4 V G96
2021-06-06 03:43:22 C 11 41 59.23 +12 28 02.6 V G96
2021-06-06 03:51:38 C 11 41 59.34 +12 27 58.4 V G96
2021-06-06 03:59:53 C 11 41 59.45 +12 27 53.9 V G96
2022-02-04 14:26:10 C 14 59 57.052 -19 31 17.06 U F52
2022-02-04 14:43:46 C 14 59 57.171 -19 31 19.83 U F52
2022-02-04 15:01:35 C 14 59 57.259 -19 31 21.81 U F52
2022-05-05 07:19:52 C 13 53 20.184 -18 56 12.84 V G96
2022-05-05 07:27:31 C 13 53 19.864 -18 56 11.65 V G96
2022-05-05 07:35:10 C 13 53 19.403 -18 56 10.90 V G96
2022-05-05 07:42:48 C 13 53 19.010 -18 56 08.16 V G96
2023-05-16 17:43:17 C 15 10 12.18 -49 19 51.1 X Q62
2023-05-16 18:07:28 C 15 10 09.17 -49 19 51.4 X Q62