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
2006-10-20 09:46:08 C 03 50 35.24 +19 51 43.4 o 644
2006-10-20 10:05:20 C 03 50 33.51 +19 51 46.3 o 644
2006-10-20 10:24:44 C 03 50 31.76 +19 51 49.6 o 644
2006-10-21 09:05:45 C 03 48 32.08 +19 55 25.4 r H45
2006-10-21 09:08:38 C 03 48 31.84 +19 55 25.6 r H45
2006-10-21 09:11:00 C 03 48 31.64 +19 55 26.1 r H45
2006-10-21 09:13:19 C 03 48 31.41 +19 55 26.3 r H45
2006-10-21 09:15:53 C 03 48 31.18 +19 55 27.2 r H45
2006-10-21 12:11:57 C 03 48 15.25 +19 55 54.7 c 691
2006-10-27 02:01:40 C 03 35 54.20 +20 13 00.4 c A41
2006-10-27 03:18:31 C 03 35 46.76 +20 13 08.0 c A41
2006-10-31 07:19:56 C 03 26 09.31 +20 21 19.5 r G96
2006-10-31 07:30:14 C 03 26 08.30 +20 21 20.2 r G96
2006-10-31 07:40:33 C 03 26 07.26 +20 21 20.8 r G96
2006-10-31 07:50:55 C 03 26 06.21 +20 21 21.4 r G96
2006-11-07 22:00:13 C 03 08 35.14 +20 26 26.7 r A13
2006-11-07 22:28:04 C 03 08 32.53 +20 26 26.7 r A13
2006-11-07 22:59:00 C 03 08 29.47 +20 26 27.5 r A13
2006-11-08 09:40:39 C 03 07 29.02 +20 26 25.4 o 644
2006-11-08 10:11:53 C 03 07 26.02 +20 26 25.2 o 644
2006-11-08 10:41:17 C 03 07 23.22 +20 26 24.6 o 644
2006-11-09 05:54:40 C 03 05 36.42 +20 26 14.1 c 691
2006-11-09 06:20:18 C 03 05 33.97 +20 26 14.0 c 691
2006-11-09 06:45:56 C 03 05 31.52 +20 26 13.8 c 691
2006-11-09 07:49:22 C 03 05 25.53 +20 26 12.7 o 644
2006-11-09 08:21:09 C 03 05 22.50 +20 26 12.2 o 644
2006-11-09 08:45:55 C 03 05 19.96 +20 26 10.9 r H45
2006-11-09 08:47:42 C 03 05 19.75 +20 26 11.0 r H45
2006-11-09 08:49:06 C 03 05 19.62 +20 26 10.5 r H45
2006-11-09 08:50:30 C 03 05 19.53 +20 26 10.5 r H45
2006-11-09 08:51:06 C 03 05 19.67 +20 26 11.7 o 644
2006-11-09 08:51:56 C 03 05 19.36 +20 26 10.7 r H45
2006-11-11 08:51:02 C 03 00 56.26 +20 25 14.0 r 703
2006-11-11 09:02:19 C 03 00 55.11 +20 25 13.1 r 703
2006-11-11 09:13:39 C 03 00 54.03 +20 25 11.9 r 703
2006-11-11 09:24:53 C 03 00 53.02 +20 25 11.8 r 703
2006-11-13 06:26:12 C 02 56 53.27 +20 23 46.1 o 644
2006-11-13 06:38:31 C 02 56 52.16 +20 23 45.7 o 644
2006-11-13 06:56:14 C 02 56 50.56 +20 23 45.1 o 644
2006-11-13 07:10:12 C 02 56 49.29 +20 23 44.6 o 644
2006-11-13 07:28:00 C 02 56 47.69 +20 23 43.8 o 644
2006-11-13 07:40:13 C 02 56 46.57 +20 23 43.4 o 644
2006-11-16 05:42:27 C 02 50 48.63 +20 20 37.5 19.1 c 704
2006-11-16 05:59:21 C 02 50 47.34 +20 20 36.9 18.9 c 704
2006-11-16 06:16:15 C 02 50 45.86 +20 20 35.7 19.1 c 704
2006-11-16 06:33:09 C 02 50 44.47 +20 20 34.6 19.1 c 704
2006-11-16 06:50:05 C 02 50 42.91 +20 20 35.1 19.6 c 704
2006-11-17 06:15:38 C 02 48 48.13 +20 19 19.9 19.2 c 704
2006-11-17 06:33:33 C 02 48 46.60 +20 19 17.7 18.7 c 704
2006-11-17 06:51:44 C 02 48 45.09 +20 19 17.1 19.0 c 704
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)