144411 (2004 EW9)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5339217436 ± 4.33e-10
Semi-major axis (a)1.9171752718 AU ± 1.10e-10
Inclination (i)8.79432051° ± 5.76e-07
Long. of Asc. Node (Ω)288.78678844° ± 2.63e-06
Arg. of Perihelion (ω)8.18075153° ± 2.93e-06
Mean Anomaly (M)8.37493834° ± 1.68e-07
Mean Motion (n)0.3712953823°/day ± 3.19e-11
Perihelion dist (q)0.89355371 AU ± 8.31e-10
Aphelion dist (Q)2.94079684 AU ± 8.47e-10
Orbital Period2.65456111 yr ± 2.28e-10
Physical Parameters
H (abs. magnitude)16.54
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.235″
Uncertainty0
Orbit TypeApollo
MOID0.091125 AU
Observations Used2438
Radar Obs Used8
Oppositions12
Arc Total2001-2020
First Observation Used2001-03-14
Last Observation Used2025-03-25
Observations (2564)
Date Type RA Dec Mag Band Observatory
2004-09-12 06:10:10 C 22 30 14.96 +70 47 58.7 c 918
2004-09-12 06:12:31 C 22 30 16.14 +70 47 49.7 c 918
2004-09-12 06:14:36 C 22 30 17.02 +70 47 41.8 c 918
2004-09-12 06:16:39 C 22 30 17.84 +70 47 33.7 c 918
2004-09-12 06:18:44 C 22 30 18.70 +70 47 25.6 c 918
2004-09-12 06:21:25 C 22 30 19.83 +70 47 15.1 c 918
2004-09-12 06:23:30 C 22 30 20.67 +70 47 06.8 c 918
2004-09-12 06:25:35 C 22 30 21.47 +70 46 59.5 c 918
2004-09-12 06:27:30 C 22 30 22.39 +70 46 50.8 c 918
2004-09-12 06:29:33 C 22 30 23.28 +70 46 42.8 c 918
2004-09-12 06:31:39 C 22 30 24.14 +70 46 34.7 c 918
2004-09-12 06:34:32 C 22 30 25.24 +70 46 24.2 c 918
2004-09-12 06:36:38 C 22 30 26.09 +70 46 16.2 c 918
2004-09-12 06:39:05 C 22 30 27.15 +70 46 06.4 c 918
2004-09-12 06:41:11 C 22 30 28.16 +70 45 57.8 c 918
2004-09-12 06:42:01 C 22 30 26.64 +70 46 00.3 c H41
2004-09-12 06:43:14 C 22 30 28.67 +70 45 51.1 c 918
2004-09-12 06:44:07 C 22 30 27.57 +70 45 52.0 c H41
2004-09-12 06:45:19 C 22 30 29.66 +70 45 42.4 c 918
2004-09-12 06:46:26 C 22 30 28.46 +70 45 43.1 c H41
2004-09-12 06:47:26 C 22 30 28.85 +70 45 39.0 c H41
2004-09-12 06:48:02 C 22 30 30.79 +70 45 31.8 c 918
2004-09-12 06:48:21 C 22 30 29.23 +70 45 35.7 c H41
2004-09-12 06:49:31 C 22 30 29.77 +70 45 30.7 c H41
2004-09-12 06:50:09 C 22 30 31.62 +70 45 23.5 c 918
2004-09-12 06:50:49 C 22 30 30.25 +70 45 26.1 c H41
2004-09-12 06:52:12 C 22 30 32.43 +70 45 15.3 c 918
2004-09-12 06:54:19 C 22 30 33.34 +70 45 07.2 c 918
2004-09-12 06:56:25 C 22 30 34.25 +70 44 59.2 c 918
2004-09-12 06:58:30 C 22 30 35.08 +70 44 50.9 c 918
2004-09-12 07:01:12 C 22 30 36.21 +70 44 40.3 c 918
2004-09-12 07:03:20 C 22 30 37.08 +70 44 32.0 c 918
2004-09-12 07:05:27 C 22 30 38.04 +70 44 23.1 c 918
2004-09-12 07:07:31 C 22 30 38.67 +70 44 16.9 c 918
2004-09-12 07:09:38 C 22 30 39.61 +70 44 07.3 c 918
2004-09-12 07:11:46 C 22 30 40.63 +70 43 57.9 c 918
2004-09-12 07:14:25 C 22 30 41.45 +70 43 49.9 c 918
2004-09-12 07:16:32 C 22 30 42.49 +70 43 40.5 c 918
2004-09-12 07:18:38 C 22 30 43.38 +70 43 32.2 c 918
2004-09-12 07:20:46 C 22 30 44.05 +70 43 25.8 c 918
2004-09-12 07:24:59 C 22 30 46.01 +70 43 06.8 c 918
2004-09-12 07:27:41 C 22 30 47.13 +70 42 56.7 c 918
2004-09-12 07:31:54 C 22 30 48.84 +70 42 40.4 c 918
2004-09-12 07:34:01 C 22 30 49.70 +70 42 32.1 c 918
2004-09-12 07:36:07 C 22 30 50.55 +70 42 23.9 c 918
2004-09-12 07:38:11 C 22 30 51.45 +70 42 15.6 c 918
2004-09-12 07:40:53 C 22 30 52.53 +70 42 04.9 c 918
2004-09-12 07:42:30 C 22 30 53.40 +70 41 56.6 c 918
2004-09-12 07:44:37 C 22 30 54.29 +70 41 48.4 c 918
2004-09-12 07:54:08 C 22 30 57.95 +70 41 12.9 c 918
Radar Observations (8)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2012-07-11 16:45:00 57252.5688 0.04 Hz 2380 -1 -1
2012-07-12 18:51:00 123271564.2 0.5 us 2380 -1 -1
2012-07-15 17:30:00 120183628 3 us 8560 -14 -14
2012-07-20 16:20:00 122765707.19 1 us 2380 -1 -1
2020-06-21 14:38:00 121746239 5 us 2380 -1 -1
2020-06-23 14:44:00 131938814.32 5 us 2380 -1 -1
2020-06-24 14:47:00 137365693.2 5 us 2380 -1 -1
2020-06-27 14:26:00 154599961.39 1 us 2380 -1 -1
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)