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
2006-11-19 05:51:05 C 02 45 02.61 +20 16 36.3 18.9 c 704
2006-11-19 06:08:46 C 02 45 01.23 +20 16 35.5 19.3 c 704
2006-11-19 06:26:28 C 02 44 59.81 +20 16 34.6 19.5 c 704
2006-11-19 06:44:10 C 02 44 58.41 +20 16 33.0 19.4 c 704
2006-11-19 07:01:54 C 02 44 56.98 +20 16 31.9 19.0 c 704
2006-11-22 04:36:57 C 02 39 48.17 +20 12 13.7 19.1 c 704
2006-11-22 04:54:45 C 02 39 46.94 +20 12 11.5 19.5 c 704
2006-11-22 05:12:33 C 02 39 45.50 +20 12 10.0 19.7 c 704
2006-11-22 05:30:30 C 02 39 44.35 +20 12 09.8 19.8 c 704
2006-11-22 05:48:20 C 02 39 42.95 +20 12 08.9 19.3 c 704
2006-12-24 18:52:59 C 02 12 12.60 +19 54 34.9 o A74
2006-12-24 19:09:37 C 02 12 12.55 +19 54 36.1 o A74
2006-12-24 19:27:19 C 02 12 12.46 +19 54 37.3 o A74
2006-12-24 19:35:09 C 02 12 12.46 +19 54 37.7 o A74
2008-02-10 07:31:01 C 11 13 11.64 +35 02 41.7 r 703
2008-02-10 07:40:21 C 11 13 11.06 +35 02 48.4 r 703
2008-02-10 07:49:47 C 11 13 10.52 +35 02 56.2 r 703
2008-02-10 07:59:08 C 11 13 10.02 +35 03 04.0 r 703
2008-02-10 08:13:37 C 11 13 09.12 +35 03 15.0 r 703
2008-02-10 08:24:18 C 11 13 08.54 +35 03 22.1 r 703
2008-02-10 08:34:56 C 11 13 07.93 +35 03 32.0 r 703
2008-02-10 08:45:35 C 11 13 07.32 +35 03 40.2 r 703
2008-02-11 05:32:21 C 11 11 58.23 +35 19 44.3 r 703
2008-02-11 05:43:39 C 11 11 57.58 +35 19 52.5 r 703
2008-02-11 05:55:00 C 11 11 57.04 +35 20 03.4 r 703
2008-02-11 06:06:20 C 11 11 56.29 +35 20 12.1 r 703
2008-02-13 07:45:40 C 11 08 56.46 +35 58 41.6 19.0 c 704
2008-02-13 08:02:58 C 11 08 55.29 +35 58 53.9 19.1 c 704
2008-02-13 08:37:39 C 11 08 52.95 +35 59 20.4 19.2 c 704
2008-02-13 08:54:58 C 11 08 51.81 +35 59 34.3 19.5 c 704
2008-02-14 00:12:32 C 11 07 52.72 +36 11 19.8 r 130
2008-02-14 00:14:43 C 11 07 52.59 +36 11 21.9 r 130
2008-02-14 00:16:53 C 11 07 52.44 +36 11 23.3 r 130
2008-02-14 00:20:30 C 11 07 52.16 +36 11 26.0 r 130
2008-03-01 06:37:51 C 10 33 16.05 +40 35 38.7 18.3 c 704
2008-03-01 06:54:06 C 10 33 14.20 +40 35 46.4 19.0 c 704
2008-03-01 07:10:17 C 10 33 12.33 +40 35 54.2 18.4 c 704
2008-03-01 07:26:48 C 10 33 10.49 +40 36 03.0 18.9 c 704
2008-03-01 07:43:02 C 10 33 08.64 +40 36 11.2 19.0 c 704
2008-04-01 04:23:34 C 09 15 51.33 +40 26 54.2 r 703
2008-04-01 04:36:26 C 09 15 50.36 +40 26 47.1 r 703
2008-04-01 04:49:09 C 09 15 49.46 +40 26 41.1 r 703
2008-04-01 05:01:47 C 09 15 48.38 +40 26 34.3 r 703
2008-04-06 03:39:11 C 09 08 10.08 +39 20 13.0 r H45
2008-04-06 03:41:00 C 09 08 09.96 +39 20 11.8 r H45
2008-04-06 03:44:51 C 09 08 09.72 +39 20 09.6 r H45
2008-04-06 03:46:28 C 09 08 09.62 +39 20 08.6 r H45
2008-04-06 03:49:19 C 09 08 09.44 +39 20 06.8 r H45
2008-04-10 04:33:08 C 09 03 19.87 +38 17 12.9 r 703
2008-04-10 04:40:58 C 09 03 19.47 +38 17 07.2 r 703
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)