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
2008-10-23 20:32:55 C 01 45 02.40 +01 16 10.3 17.1 o 084
2008-10-24 06:11:38 C 01 44 03.84 +01 20 54.0 18.1 c 704
2008-10-24 06:28:10 C 01 44 02.08 +01 21 02.3 17.8 c 704
2008-10-24 06:44:53 C 01 44 00.38 +01 21 10.3 18.0 c 704
2008-10-24 07:01:26 C 01 43 58.65 +01 21 17.7 17.9 c 704
2008-10-24 07:18:14 C 01 43 56.87 +01 21 26.2 17.9 c 704
2008-10-26 00:31:19 C 01 39 56.08 +01 40 57.4 c B37
2008-10-26 00:47:09 C 01 39 54.55 +01 41 05.0 c B37
2008-10-26 00:51:34 C 01 39 54.09 +01 41 06.9 c B37
2008-10-26 00:55:15 C 01 39 53.74 +01 41 09.0 c B37
2008-10-29 06:56:45 C 01 32 58.41 +02 17 13.1 r 703
2008-10-29 07:06:25 C 01 32 57.55 +02 17 17.6 r 703
2008-10-29 07:16:06 C 01 32 56.76 +02 17 21.7 r 703
2008-10-29 07:25:33 C 01 32 55.93 +02 17 25.8 r 703
2008-10-30 04:49:37 C 01 31 11.57 +02 27 06.6 18.1 c 704
2008-10-30 05:06:19 C 01 31 10.19 +02 27 14.5 18.2 c 704
2008-10-30 05:23:34 C 01 31 08.75 +02 27 21.9 18.2 c 704
2008-10-30 05:40:17 C 01 31 07.34 +02 27 29.3 18.4 c 704
2008-10-30 05:56:55 C 01 31 05.94 +02 27 36.0 18.5 c 704
2008-11-06 22:26:43 C 01 18 42.79 +03 47 30.3 18.3 r 084
2008-11-06 22:29:55 C 01 18 42.60 +03 47 31.2 18.8 r 084
2008-11-08 05:51:33 C 01 17 03.73 +04 00 40.3 r 703
2008-11-08 06:10:55 C 01 17 02.68 +04 00 48.5 r 703
2008-11-08 06:30:10 C 01 17 01.64 +04 00 56.4 r 703
2008-11-08 06:49:33 C 01 17 00.60 +04 01 04.2 r 703
2008-11-19 04:21:18 C 01 07 45.55 +05 45 14.7 r 703
2008-11-19 04:33:02 C 01 07 45.26 +05 45 19.6 r 703
2008-11-19 04:44:56 C 01 07 44.97 +05 45 24.6 r 703
2008-11-19 04:56:46 C 01 07 44.72 +05 45 29.0 r 703
2008-11-19 06:04:16 C 01 07 43.09 +05 45 55.9 19.2 c 704
2008-11-19 06:22:21 C 01 07 42.67 +05 46 01.7 19.3 c 704
2008-11-19 06:40:11 C 01 07 42.19 +05 46 08.7 19.3 c 704
2008-11-19 06:58:20 C 01 07 41.74 +05 46 15.9 19.6 c 704
2008-11-19 07:16:17 C 01 07 41.37 +05 46 23.4 19.1 c 704
2008-11-24 04:27:46 C 01 05 51.21 +06 31 04.9 19.7 c 704
2008-11-24 04:46:01 C 01 05 50.93 +06 31 11.2 19.4 c 704
2008-11-24 05:04:00 C 01 05 50.66 +06 31 17.8 19.7 c 704
2008-11-24 05:22:16 C 01 05 50.48 +06 31 24.7 20.1 c 704
2008-11-24 05:40:24 C 01 05 50.21 +06 31 32.0 19.6 c 704
2008-11-29 07:47:25 C 01 05 11.02 +07 17 24.4 568
2008-11-29 08:03:39 C 01 05 10.97 +07 17 30.5 568
2008-12-04 03:46:53 C 01 05 36.27 +08 00 31.7 r G96
2008-12-04 04:03:13 C 01 05 36.38 +08 00 37.5 r G96
2008-12-04 04:19:31 C 01 05 36.45 +08 00 43.5 r G96
2008-12-04 04:35:45 C 01 05 36.52 +08 00 49.5 r G96
2009-01-01 04:37:06 C 01 22 19.38 +12 08 45.2 r G96
2009-01-01 04:48:05 C 01 22 19.77 +12 08 49.4 r G96
2009-01-01 04:59:00 C 01 22 20.20 +12 08 53.0 r G96
2009-01-01 05:10:08 C 01 22 20.60 +12 08 56.8 r G96
2010-04-10 11:34:33 S 08 08 32.088 +37 18 02.84 L C51
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)