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
2004-09-11 06:48:04 C 22 18 34.61 +72 18 52.5 c H41
2004-09-11 06:49:35 C 22 18 35.30 +72 18 46.2 c H41
2004-09-11 06:50:35 C 22 18 35.76 +72 18 42.1 c H41
2004-09-11 06:51:35 C 22 18 36.33 +72 18 38.3 c H41
2004-09-11 06:52:39 C 22 18 36.93 +72 18 34.1 c H41
2004-09-11 11:45:48 C 22 21 24.12 +71 59 28.2 m 379
2004-09-11 11:54:03 C 22 21 28.15 +71 58 56.2 m 379
2004-09-11 12:55:31 C 22 21 57.89 +71 55 01.1 m 379
2004-09-11 13:03:46 C 22 22 01.71 +71 54 28.6 m 379
2004-09-11 13:07:05 C 22 22 03.45 +71 54 16.4 m 379
2004-09-11 13:08:43 C 22 22 04.27 +71 54 10.1 m 379
2004-09-11 19:50:53 C 22 25 29.30 +71 27 52.9 14.8 i 057
2004-09-11 19:53:35 C 22 25 30.56 +71 27 42.3 14.8 i 057
2004-09-11 19:54:52 C 22 25 31.13 +71 27 37.5 14.6 i 057
2004-09-11 19:57:12 C 22 25 32.20 +71 27 28.9 14.7 i 057
2004-09-11 19:59:08 C 22 25 33.04 +71 27 21.5 14.8 i 057
2004-09-11 20:00:29 C 22 25 33.69 +71 27 16.1 14.7 i 057
2004-09-11 20:01:46 C 22 25 34.27 +71 27 11.3 14.8 i 057
2004-09-11 20:03:08 C 22 25 34.89 +71 27 06.1 14.6 i 057
2004-09-11 20:04:28 C 22 25 35.54 +71 27 01.0 14.7 i 057
2004-09-11 20:05:47 C 22 25 36.09 +71 26 56.1 14.6 i 057
2004-09-11 20:10:02 C 22 25 38.04 +71 26 39.5 14.8 i 057
2004-09-11 20:43:25 C 22 25 51.50 +71 24 18.7 o 084
2004-09-12 05:10:41 C 22 29 50.60 +70 51 47.9 c 918
2004-09-12 05:12:46 C 22 29 51.23 +70 51 41.6 c 918
2004-09-12 05:14:52 C 22 29 52.24 +70 51 32.0 c 918
2004-09-12 05:16:59 C 22 29 53.10 +70 51 24.1 c 918
2004-09-12 05:19:39 C 22 29 54.22 +70 51 13.8 c 918
2004-09-12 05:21:46 C 22 29 55.08 +70 51 05.6 c 918
2004-09-12 05:23:51 C 22 29 55.99 +70 50 57.7 c 918
2004-09-12 05:25:55 C 22 29 56.88 +70 50 49.6 c 918
2004-09-12 05:28:01 C 22 29 57.71 +70 50 41.6 c 918
2004-09-12 05:30:06 C 22 29 58.54 +70 50 33.6 c 918
2004-09-12 05:32:45 C 22 29 59.67 +70 50 23.3 c 918
2004-09-12 05:34:50 C 22 30 00.57 +70 50 15.2 c 918
2004-09-12 05:36:56 C 22 30 01.43 +70 50 07.3 c 918
2004-09-12 05:39:01 C 22 30 02.28 +70 49 59.2 c 918
2004-09-12 05:41:07 C 22 30 03.14 +70 49 51.2 c 918
2004-09-12 05:43:47 C 22 30 04.22 +70 49 40.8 c 918
2004-09-12 05:45:53 C 22 30 04.62 +70 49 34.4 c 918
2004-09-12 05:47:30 C 22 30 05.97 +70 49 24.6 c 918
2004-09-12 05:49:33 C 22 30 06.76 +70 49 16.8 c 918
2004-09-12 05:51:38 C 22 30 07.67 +70 49 08.8 c 918
2004-09-12 05:54:11 C 22 30 08.55 +70 49 00.7 c 918
2004-09-12 05:57:21 C 22 30 09.88 +70 48 48.3 c 918
2004-09-12 05:59:26 C 22 30 10.73 +70 48 40.4 c 918
2004-09-12 06:01:29 C 22 30 11.57 +70 48 32.5 c 918
2004-09-12 06:03:35 C 22 30 12.44 +70 48 24.3 c 918
2004-09-12 06:05:40 C 22 30 13.30 +70 48 16.2 c 918
2004-09-12 06:08:04 C 22 30 14.35 +70 48 05.7 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)