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
2006-04-08 23:38:49 C 17 37 42.08 +29 13 09.4 r 157
2006-04-08 23:39:59 C 17 37 43.03 +29 13 09.2 r 157
2006-04-09 00:06:54 C 17 38 04.97 +29 12 44.8 o J65
2006-04-09 00:07:29 C 17 38 05.35 +29 12 45.6 o J65
2006-04-09 00:07:50 C 17 38 05.75 +29 12 44.5 o J65
2006-04-09 00:08:26 C 17 38 06.15 +29 12 44.8 o J65
2006-04-09 08:14:28 C 17 44 57.76 +29 10 35.5 r H45
2006-04-09 08:15:21 C 17 44 58.49 +29 10 35.0 r H45
2006-04-09 08:17:07 C 17 44 59.96 +29 10 34.4 r H45
2006-04-09 08:18:57 C 17 45 01.53 +29 10 34.0 r H45
2006-04-09 08:21:07 C 17 45 03.35 +29 10 33.2 r H45
2006-04-13 09:40:10 C 19 25 24.26 +25 56 02.9 r 850
2006-04-13 09:43:57 C 19 25 28.58 +25 55 48.4 r 850
2006-04-13 09:47:56 C 19 25 33.08 +25 55 33.4 r 850
2006-04-13 09:51:58 C 19 25 37.66 +25 55 17.4 r 850
2006-04-13 09:55:54 C 19 25 42.14 +25 55 02.1 r 850
2006-04-13 10:00:02 C 19 25 46.84 +25 54 46.1 r 850
2006-04-13 10:03:49 C 19 25 51.10 +25 54 31.5 r 850
2006-04-13 10:07:49 C 19 25 55.65 +25 54 15.8 r 850
2006-04-13 10:12:00 C 19 26 00.43 +25 54 00.0 r 850
2006-04-13 10:19:02 C 19 26 08.41 +25 53 33.5 r 850
2006-04-14 03:49:57 C 19 46 37.87 +24 37 37.3 r 941
2006-04-14 03:51:29 C 19 46 39.66 +24 37 30.1 r 941
2006-04-14 03:52:24 C 19 46 40.72 +24 37 25.7 r 941
2006-04-14 03:54:52 C 19 46 43.58 +24 37 14.5 r 941
2006-09-16 11:19:02 C 04 30 09.72 +16 20 04.6 r 703
2006-09-16 11:28:26 C 04 30 09.54 +16 20 07.1 r 703
2006-09-16 11:37:45 C 04 30 09.46 +16 20 11.2 r 703
2006-09-16 11:47:11 C 04 30 09.39 +16 20 14.0 r 703
2006-09-27 10:01:12 C 04 24 50.56 +17 39 48.1 o 693
2006-09-27 10:06:09 C 04 24 50.38 +17 39 49.6 o 693
2006-09-27 10:11:05 C 04 24 50.19 +17 39 51.1 o 693
2006-10-03 11:02:05 C 04 18 49.21 +18 20 33.2 r G96
2006-10-03 11:10:16 C 04 18 48.78 +18 20 35.5 r G96
2006-10-03 11:18:36 C 04 18 48.38 +18 20 37.7 r G96
2006-10-03 11:26:57 C 04 18 47.91 +18 20 40.0 r G96
2006-10-15 07:07:41 C 04 00 42.40 +19 29 03.9 19.3 c H55
2006-10-15 07:12:57 C 04 00 41.99 +19 29 04.4 19.1 c H55
2006-10-15 07:18:13 C 04 00 41.57 +19 29 05.7 19.1 c H55
2006-10-15 07:23:27 C 04 00 41.17 +19 29 06.8 18.1 c H55
2006-10-16 08:44:57 C 03 58 41.57 +19 34 13.1 o 693
2006-10-16 08:47:49 C 03 58 41.34 +19 34 13.7 o 693
2006-10-16 08:50:41 C 03 58 41.09 +19 34 14.3 o 693
2006-10-16 08:53:33 C 03 58 40.86 +19 34 14.9 o 693
2006-10-16 11:37:44 C 03 58 27.31 +19 34 47.0 c 691
2006-10-16 12:02:44 C 03 58 25.24 +19 34 51.8 c 691
2006-10-17 08:42:51 C 03 56 45.52 +19 38 50.1 r G96
2006-10-17 08:52:40 C 03 56 44.73 +19 38 52.0 r G96
2006-10-17 09:02:34 C 03 56 43.87 +19 38 53.8 r G96
2006-10-17 09:12:18 C 03 56 43.08 +19 38 55.7 r G96
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)