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 08:00:23 C 22 31 00.40 +70 40 47.8 c 918
2004-09-12 08:02:30 C 22 31 01.46 +70 40 39.8 c 918
2004-09-12 08:04:37 C 22 31 02.32 +70 40 31.4 c 918
2004-09-12 08:07:21 C 22 31 03.42 +70 40 20.8 c 918
2004-09-12 08:09:28 C 22 31 04.33 +70 40 12.2 c 918
2004-09-12 08:11:32 C 22 31 05.19 +70 40 03.9 c 918
2004-09-12 08:13:37 C 22 31 06.02 +70 39 56.0 c 918
2004-09-12 08:15:44 C 22 31 06.88 +70 39 47.6 c 918
2004-09-12 08:17:51 C 22 31 07.73 +70 39 39.1 c 918
2004-09-12 08:19:59 C 22 31 08.65 +70 39 30.9 c 918
2004-09-12 08:22:38 C 22 31 09.75 +70 39 20.2 c 918
2004-09-12 08:24:45 C 22 31 10.60 +70 39 11.9 c 918
2004-09-12 08:26:51 C 22 31 11.49 +70 39 03.7 c 918
2004-09-12 08:28:58 C 22 31 12.34 +70 38 55.3 c 918
2004-09-12 08:31:05 C 22 31 13.23 +70 38 46.8 c 918
2004-09-12 08:33:11 C 22 31 14.13 +70 38 38.5 c 918
2004-09-12 08:40:06 C 22 31 16.95 +70 38 11.2 c 918
2004-09-12 08:42:12 C 22 31 17.83 +70 38 02.9 c 918
2004-09-12 08:44:18 C 22 31 18.71 +70 37 54.6 c 918
2004-09-12 08:46:22 C 22 31 19.55 +70 37 46.4 c 918
2004-09-12 08:48:28 C 22 31 20.43 +70 37 38.0 c 918
2004-09-12 08:50:58 C 22 31 21.44 +70 37 28.1 c 918
2004-09-12 08:53:06 C 22 31 22.52 +70 37 17.7 c 918
2004-09-12 09:10:54 C 22 31 29.78 +70 36 09.6 c 918
2004-09-12 09:12:31 C 22 31 30.58 +70 36 00.5 c 918
2004-09-12 09:14:38 C 22 31 31.42 +70 35 52.2 c 918
2004-09-12 09:29:38 C 22 31 37.36 +70 34 54.3 c 918
2004-09-12 09:31:44 C 22 31 38.32 +70 34 46.0 c 918
2004-09-12 09:33:48 C 22 31 39.20 +70 34 37.8 c 918
2004-09-12 09:37:33 C 22 31 40.97 +70 34 20.9 c 918
2004-09-12 09:39:38 C 22 31 41.85 +70 34 12.3 c 918
2004-09-12 09:42:19 C 22 31 42.75 +70 34 03.9 c 918
2004-09-12 09:45:01 C 22 31 43.89 +70 33 53.0 c 918
2004-09-12 09:47:07 C 22 31 44.77 +70 33 44.9 c 918
2004-09-12 09:53:28 C 22 31 47.46 +70 33 19.4 c 918
2004-09-12 09:55:35 C 22 31 48.25 +70 33 11.0 c 918
2004-09-12 09:57:29 C 22 31 49.16 +70 33 02.5 c 918
2004-09-12 10:00:10 C 22 31 50.29 +70 32 51.7 c 918
2004-09-12 10:02:29 C 22 31 51.15 +70 32 43.3 c 918
2004-09-12 18:53:59 C 22 35 46.39 +69 58 46.5 o 240
2004-09-12 18:55:04 C 22 35 46.79 +69 58 42.5 o 240
2004-09-12 18:56:08 C 22 35 47.21 +69 58 38.6 o 240
2004-09-12 18:57:12 C 22 35 47.61 +69 58 34.8 o 240
2004-09-12 18:58:16 C 22 35 48.02 +69 58 30.7 o 240
2004-09-12 18:59:21 C 22 35 48.43 +69 58 26.8 o 240
2004-09-12 19:01:29 C 22 35 49.24 +69 58 18.9 o 240
2004-09-12 19:02:33 C 22 35 49.68 +69 58 15.0 o 240
2004-09-12 19:03:37 C 22 35 50.06 +69 58 11.0 o 240
2004-09-13 05:50:59 C 22 39 53.49 +69 17 33.7 c H41
2004-09-13 05:52:02 C 22 39 53.83 +69 17 29.6 c H41
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)