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
2024-04-16 11:21:44 C 13 04 13.510 +06 15 06.30 V T05
2024-04-17 06:56:41 C 13 02 41.233 +06 16 20.64 V 703
2024-04-17 07:00:00 C 13 02 40.967 +06 16 19.67 V 703
2024-04-17 07:03:19 C 13 02 40.711 +06 16 20.96 V 703
2024-04-17 07:06:38 C 13 02 40.391 +06 16 21.86 V 703
2024-04-17 12:52:36 C 13 02 13.277 +06 16 42.37 X F51
2024-04-17 13:08:28 C 13 02 12.010 +06 16 43.31 X F51
2024-04-17 13:24:21 C 13 02 10.780 +06 16 44.13 X F51
2024-04-17 13:40:15 C 13 02 09.534 +06 16 45.02 X F51
2024-05-04 06:31:19 C 12 36 30.352 +06 10 28.27 V G96
2024-05-04 06:38:51 C 12 36 29.970 +06 10 27.19 V G96
2024-05-04 06:46:22 C 12 36 29.596 +06 10 26.69 V G96
2024-05-04 06:53:54 C 12 36 29.203 +06 10 26.26 V G96
2024-05-06 07:39:58 C 12 34 08.682 +06 06 07.64 X F52
2024-05-06 07:57:06 C 12 34 07.875 +06 06 06.04 X F52
2024-05-06 08:14:11 C 12 34 07.058 +06 06 04.35 X F52
2024-05-06 08:31:14 C 12 34 06.250 +06 06 02.72 X F52
2025-04-25 09:33:10 C 14 17 13.478 -23 20 48.44 X F52
2025-04-25 09:49:38 C 14 17 12.554 -23 20 46.24 X F52
2025-04-25 10:06:10 C 14 17 11.643 -23 20 43.95 X F52
2025-04-25 10:22:38 C 14 17 10.744 -23 20 41.63 X F52
2025-05-02 10:21:36 C 14 08 05.438 -22 54 07.01 X F52
2025-05-02 10:33:30 C 14 08 04.799 -22 54 04.87 X F52
2025-05-02 10:38:03 C 14 08 04.547 -22 54 04.22 X F52
2025-05-02 10:49:56 C 14 08 03.900 -22 54 02.13 X F52
2025-05-02 11:06:24 C 14 08 03.003 -22 53 59.40 X F52
2025-05-02 11:10:57 C 14 08 02.764 -22 53 58.36 X F52
2025-05-19 07:21:31 C 13 47 43.968 -21 36 25.14 X F51
2025-05-19 07:38:09 C 13 47 43.196 -21 36 21.64 X F51
2025-05-19 07:54:50 C 13 47 42.426 -21 36 18.27 X F51
2025-05-19 08:11:30 C 13 47 41.654 -21 36 14.85 X F51
2025-05-29 06:41:17 C 13 37 47.684 -20 48 35.96 X F51
2025-05-29 07:16:41 C 13 37 46.344 -20 48 28.99 X F51
2025-05-29 07:35:35 C 13 37 45.622 -20 48 25.55 X F51