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
2024-11-18 22:17:35 C 10 28 30.834 +05 10 46.76 O18
2024-11-19 21:23:50 C 10 29 14.429 +05 03 51.74 O18
2024-11-19 21:25:37 C 10 29 14.477 +05 03 51.38 O18
2024-11-19 22:33:01 C 10 29 16.539 +05 03 31.47 O18
2024-12-09 14:15:13 C 10 41 01.865 +02 51 39.39 X F51
2024-12-09 14:31:24 C 10 41 02.165 +02 51 35.48 X F51
2024-12-09 14:47:39 C 10 41 02.421 +02 51 31.15 X F51
2024-12-09 15:03:49 C 10 41 02.701 +02 51 27.14 X F51
2024-12-18 20:31:43 C 10 44 08.104 +01 57 59.53 O18
2024-12-18 20:33:00 C 10 44 08.124 +01 57 59.22 O18
2024-12-26 11:11:25 C 10 45 14.627 +01 19 35.04 V G96
2024-12-26 11:32:17 C 10 45 14.670 +01 19 31.87 V G96
2024-12-26 11:50:15 C 10 45 14.713 +01 19 28.81 V G96
2024-12-26 11:57:42 C 10 45 14.717 +01 19 26.94 V G96
2025-01-01 20:44:09 C 10 45 01.74 +00 52 14.6 V D29
2025-01-01 21:04:31 C 10 45 01.62 +00 52 11.5 V D29
2025-01-01 21:24:53 C 10 45 01.49 +00 52 08.0 V D29
2025-01-09 13:25:35 C 10 43 14.532 +00 26 25.80 X F51
2025-01-09 13:41:50 C 10 43 14.275 +00 26 24.07 X F51
2025-01-09 13:58:02 C 10 43 14.021 +00 26 22.17 X F51
2025-01-09 14:14:16 C 10 43 13.769 +00 26 20.29 X F51
2025-01-11 21:24:21 C 10 42 21.024 +00 20 16.64 O18
2025-01-11 22:28:39 C 10 42 19.838 +00 20 10.14 O18
2025-01-12 18:03:19 C 10 41 58.971 +00 18 13.60 O18
2025-01-12 18:04:35 C 10 41 58.953 +00 18 13.53 O18
2025-02-06 06:29:30 C 10 21 41.274 +00 15 26.50 V G96
2025-02-06 06:37:33 C 10 21 40.878 +00 15 27.32 V G96
2025-02-06 06:45:37 C 10 21 40.475 +00 15 28.12 V G96
2025-02-06 06:53:42 C 10 21 40.061 +00 15 28.69 V G96
2025-02-07 11:10:28 C 10 20 15.035 +00 18 16.56 X F51
2025-02-07 11:28:18 C 10 20 14.100 +00 18 18.35 X F51
2025-02-07 11:46:09 C 10 20 13.170 +00 18 20.22 X F51
2025-02-07 12:03:57 C 10 20 12.241 +00 18 22.08 X F51
2025-02-20 06:07:59 C 10 03 09.306 +01 04 33.53 V G96
2025-02-20 06:14:39 C 10 03 08.910 +01 04 34.79 V G96
2025-02-20 06:21:20 C 10 03 08.507 +01 04 36.01 V G96
2025-02-20 06:28:00 C 10 03 08.104 +01 04 37.34 V G96
2025-02-20 10:16:25 C 10 02 54.451 +01 05 23.50 V T08
2025-02-20 10:21:18 C 10 02 54.122 +01 05 23.75 V T08
2025-02-20 10:28:51 C 10 02 53.700 +01 05 25.26 V T08
2025-02-20 10:53:00 C 10 02 52.238 +01 05 30.44 V T08
2025-02-22 09:33:05 C 10 00 05.200 +01 14 54.93 X F51
2025-02-22 09:50:48 C 10 00 04.108 +01 14 58.60 X F51
2025-02-22 10:08:34 C 10 00 03.013 +01 15 02.27 X F51
2025-02-22 10:26:18 C 10 00 01.924 +01 15 05.94 X F51
2025-02-24 07:47:11 C 09 57 18.569 +01 24 42.95 V 703
2025-02-24 07:50:27 C 09 57 18.288 +01 24 43.02 V 703
2025-02-24 07:53:42 C 09 57 18.011 +01 24 43.67 V 703
2025-02-24 07:56:58 C 09 57 17.878 +01 24 45.11 V 703
2025-02-26 09:56:48 C 09 54 17.438 +01 35 53.20 V T05
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)