144901 (2004 WG1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5219161608 ± 1.35e-08
Semi-major axis (a)1.6399046216 AU ± 3.63e-09
Inclination (i)13.03627510° ± 4.26e-06
Long. of Asc. Node (Ω)41.97768639° ± 6.91e-06
Arg. of Perihelion (ω)232.48782326° ± 7.83e-06
Mean Anomaly (M)98.80911219° ± 1.27e-05
Mean Motion (n)0.4693365661°/day ± 1.56e-09
Perihelion dist (q)0.78401190 AU ± 2.22e-08
Aphelion dist (Q)2.49579735 AU ± 2.28e-08
Orbital Period2.10004154 yr ± 6.97e-09
Physical Parameters
H (abs. magnitude)17.54
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.381″
Uncertainty0
Orbit TypeApollo
MOID0.055629 AU
Observations Used626
Radar Obs Used4
Oppositions1
Arc Total2004-2006
First Observation Used2004-09-22
Last Observation Used2025-12-25
Observations (714)
Date Type RA Dec Mag Band Observatory
2004-09-22 11:50:16 C 05 06 28.99 +23 43 47.6 c 691
2004-09-22 12:09:06 C 05 06 29.12 +23 43 52.4 c 691
2004-09-22 12:21:16 C 05 06 29.23 +23 43 55.9 c 691
2004-09-24 07:50:46 C 05 06 47.25 +23 56 22.1 d 291
2004-09-24 07:59:45 C 05 06 47.31 +23 56 24.3 d 291
2004-09-24 08:09:04 C 05 06 47.34 +23 56 26.4 d 291
2004-11-19 06:00:25 C 03 59 37.38 +28 32 36.4 18.7 c 704
2004-11-19 06:35:35 C 03 59 34.25 +28 32 36.7 19.9 c 704
2004-11-19 06:53:12 C 03 59 32.65 +28 32 35.8 19.3 c 704
2004-11-19 07:10:49 C 03 59 31.22 +28 32 36.4 19.6 c 704
2004-11-20 06:22:18 C 03 57 30.90 +28 32 23.8 c 854
2004-11-20 06:23:40 C 03 57 30.75 +28 32 22.8 c 854
2004-11-20 06:27:45 C 03 57 30.44 +28 32 23.5 c 854
2004-11-20 06:33:14 C 03 57 30.04 +28 32 23.4 c 854
2004-11-20 06:41:24 C 03 57 29.23 +28 32 23.9 c 854
2004-11-20 06:46:53 C 03 57 28.78 +28 32 23.8 c 854
2004-11-20 18:13:24 C 03 56 29.88 +28 32 08.5 c 599
2004-11-20 18:24:46 C 03 56 28.87 +28 32 08.1 c 599
2004-11-20 18:36:02 C 03 56 27.90 +28 32 07.9 c 599
2004-11-20 18:47:21 C 03 56 26.91 +28 32 07.9 c 599
2004-11-20 21:58:16 C 03 56 10.34 +28 32 04.4 r 240
2004-11-20 22:02:10 C 03 56 10.01 +28 32 04.1 r 240
2004-11-20 22:06:04 C 03 56 09.66 +28 32 03.8 r 240
2004-11-20 22:24:14 C 03 56 07.99 +28 32 02.9 r 240
2004-11-20 22:32:00 C 03 56 07.35 +28 32 02.3 r 240
2004-11-21 19:48:38 C 03 54 18.11 +28 31 30.5 c 587
2004-11-21 19:53:16 C 03 54 17.80 +28 31 31.7 c 587
2004-11-21 19:57:52 C 03 54 17.32 +28 31 31.3 c 587
2004-11-30 17:44:06 C 03 36 53.02 +28 16 58.2 c 540
2004-11-30 17:55:49 C 03 36 52.19 +28 16 58.3 c 540
2004-12-01 04:44:55 C 03 36 02.67 +28 15 51.8 r 649
2004-12-01 04:50:01 C 03 36 02.29 +28 15 51.4 r 649
2004-12-01 04:55:08 C 03 36 01.90 +28 15 51.0 r 649
2004-12-01 05:00:15 C 03 36 01.51 +28 15 50.2 r 649
2004-12-01 05:05:21 C 03 36 01.07 +28 15 50.4 r 649
2004-12-07 07:15:18 C 03 25 41.91 +27 58 32.9 r 448
2004-12-07 07:30:57 C 03 25 40.81 +27 58 30.5 r 448
2004-12-07 07:46:37 C 03 25 39.65 +27 58 27.6 r 448
2004-12-08 23:07:10 C 03 23 09.13 +27 53 12.9 c 246
2004-12-08 23:08:17 C 03 23 09.05 +27 53 13.3 c 246
2004-12-08 23:09:35 C 03 23 08.99 +27 53 12.7 c 246
2004-12-08 23:11:59 C 03 23 08.85 +27 53 13.2 c 246
2004-12-08 23:44:26 C 03 23 06.75 +27 53 07.8 c 246
2004-12-08 23:45:55 C 03 23 06.61 +27 53 07.6 c 246
2004-12-08 23:48:22 C 03 23 06.55 +27 53 07.8 c 246
2004-12-10 21:30:21 C 03 20 21.10 +27 46 54.9 c 246
2004-12-10 21:32:02 C 03 20 21.06 +27 46 54.6 c 246
2004-12-10 21:34:52 C 03 20 20.81 +27 46 55.0 c 246
2004-12-10 21:37:05 C 03 20 20.72 +27 46 54.0 c 246
2004-12-10 21:38:56 C 03 20 20.61 +27 46 54.0 c 246
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2006-04-11 09:55:00 114230.3266 2 Hz 2380 -1 -1
2006-04-11 10:52:00 91075429.82 3 us 2380 -1 -1
2006-04-11 10:52:00 111851.1004 2 Hz 2380 -1 -1
2006-04-13 09:21:00 64713.2365 2 Hz 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)