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
2004-09-13 05:53:43 C 22 39 54.42 +69 17 22.9 c H41
2004-09-13 05:54:52 C 22 39 54.77 +69 17 18.3 c H41
2004-09-13 05:55:58 C 22 39 55.12 +69 17 14.5 c H41
2004-09-13 05:57:22 C 22 39 55.62 +69 17 08.7 c H41
2004-09-13 11:45:16 C 22 42 07.12 +68 55 10.0 o 379
2004-09-13 11:46:56 C 22 42 07.65 +68 55 04.2 o 379
2004-09-13 11:48:34 C 22 42 08.19 +68 54 58.0 o 379
2004-09-13 11:51:52 C 22 42 09.24 +68 54 46.5 o 379
2004-09-13 11:56:49 C 22 42 10.93 +68 54 28.0 o 379
2004-09-13 12:00:07 C 22 42 11.91 +68 54 15.9 o 379
2004-09-13 12:03:25 C 22 42 12.95 +68 54 03.7 o 379
2004-09-13 12:10:02 C 22 42 15.07 +68 53 39.8 o 379
2004-09-13 12:16:37 C 22 42 17.27 +68 53 15.6 o 379
2004-09-13 19:17:29 C 22 44 42.05 +68 26 47.1 15.2 i 057
2004-09-13 19:20:10 C 22 44 42.87 +68 26 37.3 15.4 i 057
2004-09-13 19:22:35 C 22 44 43.61 +68 26 28.6 15.2 i 057
2004-09-13 19:24:06 C 22 44 44.06 +68 26 22.9 14.7 i 057
2004-09-13 19:25:25 C 22 44 44.49 +68 26 18.0 15.4 i 057
2004-09-13 19:26:35 C 22 44 44.87 +68 26 14.0 14.9 i 057
2004-09-13 19:27:44 C 22 44 45.23 +68 26 09.9 14.9 i 057
2004-09-13 19:28:58 C 22 44 45.56 +68 26 05.2 14.9 i 057
2004-09-13 19:30:14 C 22 44 45.97 +68 26 00.4 15.1 i 057
2004-09-13 19:32:41 C 22 44 46.75 +68 25 51.9 15.0 i 057
2004-09-13 21:57:51 C 22 45 31.74 +68 16 56.9 o 160
2004-09-13 21:58:13 C 22 45 31.86 +68 16 55.2 o 160
2004-09-13 21:58:32 C 22 45 32.03 +68 16 54.0 o 160
2004-09-13 21:58:53 C 22 45 32.08 +68 16 53.0 o 160
2004-09-13 21:59:13 C 22 45 32.22 +68 16 52.0 o 160
2004-09-13 21:59:34 C 22 45 32.30 +68 16 50.5 o 160
2004-09-13 21:59:56 C 22 45 32.34 +68 16 49.3 o 160
2004-09-13 22:00:17 C 22 45 32.50 +68 16 47.6 o 160
2004-09-13 22:00:38 C 22 45 32.62 +68 16 46.4 o 160
2004-09-13 22:00:59 C 22 45 32.69 +68 16 45.4 o 160
2004-09-13 22:01:20 C 22 45 32.84 +68 16 43.6 o 160
2004-09-13 22:01:40 C 22 45 32.91 +68 16 42.5 o 160
2004-09-13 22:02:01 C 22 45 33.03 +68 16 41.3 o 160
2004-09-13 22:15:36 C 22 45 37.03 +68 15 51.1 o 160
2004-09-13 22:15:57 C 22 45 37.15 +68 15 49.4 o 160
2004-09-13 22:16:18 C 22 45 37.25 +68 15 48.3 o 160
2004-09-13 22:16:42 C 22 45 37.37 +68 15 47.0 o 160
2004-09-13 22:17:03 C 22 45 37.46 +68 15 45.5 o 160
2004-09-13 22:17:24 C 22 45 37.57 +68 15 44.2 o 160
2004-09-13 22:17:44 C 22 45 37.68 +68 15 42.7 o 160
2004-09-13 22:18:05 C 22 45 37.78 +68 15 41.8 o 160
2004-09-13 22:18:25 C 22 45 37.86 +68 15 40.4 o 160
2004-09-13 22:18:46 C 22 45 37.97 +68 15 39.3 o 160
2004-09-13 22:19:07 C 22 45 38.10 +68 15 37.7 o 160
2004-09-13 22:19:28 C 22 45 38.17 +68 15 36.6 o 160
2004-09-13 22:19:48 C 22 45 38.29 +68 15 34.9 o 160
2004-09-13 22:20:09 C 22 45 38.39 +68 15 33.7 o 160
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)