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
2021-03-18 12:32:43 C 14 09 08.50 +33 50 54.7 V T05
2021-03-18 12:40:38 C 14 09 06.41 +33 50 53.9 V T05
2021-03-18 13:12:30 C 14 08 57.96 +33 50 50.5 V T05
2021-03-18 19:34:56 C 14 07 18.91 +33 50 02.8 o C94
2021-03-18 19:36:16 C 14 07 18.48 +33 50 02.5 o C94
2021-03-18 19:37:32 C 14 07 17.92 +33 49 55.0 o C94
2021-03-18 19:38:58 C 14 07 17.48 +33 49 52.4 o C94
2021-03-20 11:24:09 C 13 57 08.19 +33 42 56.2 V T08
2021-03-20 11:28:10 C 13 57 07.17 +33 42 55.2 V T08
2021-03-20 11:58:18 C 13 56 59.45 +33 42 48.4 V T08
2021-03-20 12:13:18 C 13 56 55.59 +33 42 44.9 V T08
2021-03-20 23:55:06 C 13 54 00.22 +33 39 42.0 V J27
2021-03-20 23:59:31 C 13 53 59.09 +33 39 40.9 V J27
2021-03-21 00:03:32 C 13 53 58.09 +33 39 40.0 V J27
2021-03-21 05:21:38 C 13 52 39.31 +33 38 12.6 V 703
2021-03-21 05:28:31 C 13 52 37.59 +33 38 10.6 V 703
2021-03-21 05:35:25 C 13 52 35.87 +33 38 08.8 V 703
2021-03-21 05:42:18 C 13 52 34.15 +33 38 07.0 V 703
2021-03-21 23:09:40 C 13 48 15.95 +33 32 47.7 V 130
2021-03-21 23:14:11 C 13 48 14.84 +33 32 46.2 V 130
2021-03-21 23:16:56 C 13 48 14.17 +33 32 45.2 V 130
2021-03-21 23:19:07 C 13 48 13.62 +33 32 44.7 V 130
2021-03-23 04:16:35 C 13 41 15.52 +33 22 13.1 V U55
2021-03-23 04:24:04 C 13 41 13.73 +33 22 10.3 V U55
2021-03-23 04:31:49 C 13 41 11.87 +33 22 07.4 V U55
2021-03-24 11:23:26 C 13 33 58.85 +33 09 01.7 V T08
2021-03-24 11:26:06 C 13 33 58.24 +33 09 00.5 V T08
2021-03-24 11:30:04 C 13 33 57.30 +33 08 58.7 V T08
2021-03-24 11:47:03 C 13 33 53.33 +33 08 50.8 V T08
2021-03-24 11:52:09 C 13 33 52.14 +33 08 48.5 V T08
2021-03-24 11:55:50 C 13 33 51.27 +33 08 46.9 V T08
2021-03-24 12:33:21 C 13 33 42.50 +33 08 29.3 V T08
2021-03-24 13:13:57 C 13 33 33.04 +33 08 09.9 V T08
2021-03-25 13:07:57 C 13 28 08.805 +32 56 24.81 U F52
2021-03-25 13:21:50 C 13 28 05.681 +32 56 17.46 U F52
2021-03-25 13:35:43 C 13 28 02.522 +32 56 10.13 U F52
2021-03-26 00:16:59 C 13 25 40.96 +32 50 29.0 V L74
2021-03-26 00:22:44 C 13 25 39.68 +32 50 25.9 V L74
2021-03-26 00:28:59 C 13 25 38.28 +32 50 22.7 V L74
2021-03-26 06:22:50 C 13 24 21.27 +32 47 11.7 V 703
2021-03-26 06:30:40 C 13 24 19.52 +32 47 07.5 V 703
2021-03-26 06:38:30 C 13 24 17.79 +32 47 03.2 V 703
2021-03-26 06:46:20 C 13 24 16.05 +32 46 59.2 V 703
2021-03-26 09:52:24 C 13 23 35.53 +32 45 19.2 V T05
2021-03-26 09:55:02 C 13 23 34.96 +32 45 17.8 V T05
2021-03-26 09:59:59 C 13 23 33.86 +32 45 15.3 V T05
2021-03-26 10:39:35 C 13 23 25.14 +32 44 53.4 V T05
2021-03-29 22:59:38 C 13 06 05.14 +31 52 12.0 V K87
2021-03-29 23:05:57 C 13 06 03.89 +31 52 07.8 V K87
2021-03-29 23:12:47 C 13 06 02.55 +31 52 03.1 V K87