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
2010-12-17 05:27:26 S 23 59 33.87 -02 07 09.2 L C51
2010-12-17 08:37:57 S 23 59 48.41 -02 04 23.7 L C51
2010-12-17 10:13:07 S 23 59 55.51 -02 03 01.8 L C51
2010-12-17 11:48:28 S 00 00 02.73 -02 01 39.6 L C51
2010-12-17 13:23:38 S 00 00 10.04 -02 00 18.5 L C51
2010-12-17 14:58:48 S 00 00 17.36 -01 58 57.0 L C51
2010-12-17 14:58:59 S 00 00 17.34 -01 58 56.3 L C51
2010-12-17 21:19:50 S 00 00 46.18 -01 53 29.3 L C51
2010-12-18 00:30:21 S 00 01 00.626 -01 50 46.72 L C51
2010-12-18 06:51:13 S 00 01 29.61 -01 45 20.6 L C51
2010-12-18 10:01:43 S 00 01 43.98 -01 42 37.9 L C51
2010-12-18 13:12:04 S 00 01 58.24 -01 39 55.8 L C51
2010-12-18 13:12:15 S 00 01 58.31 -01 39 57.1 L C51
2011-01-28 06:24:00 C 01 12 38.493 +09 36 12.71 L F51
2011-01-28 06:33:00 C 01 12 39.123 +09 36 17.97 L F51
2011-01-28 06:39:44 C 01 12 39.620 +09 36 21.72 L F51
2012-01-29 08:06:50 C 08 24 18.18 +42 46 23.6 r 703
2012-01-29 08:16:35 C 08 24 17.31 +42 46 24.7 r 703
2012-01-29 08:26:14 C 08 24 16.30 +42 46 29.4 r 703
2012-01-29 08:35:57 C 08 24 15.48 +42 46 31.5 r 703
2012-12-31 05:14:13 C 23 21 39.696 -07 55 30.63 L F51
2012-12-31 05:19:56 C 23 21 40.351 -07 55 24.53 L F51
2012-12-31 05:25:38 C 23 21 40.992 -07 55 18.61 L F51
2012-12-31 05:31:19 C 23 21 41.638 -07 55 12.57 L F51
2014-01-21 09:12:55 C 07 32 08.807 +42 50 09.07 L F51
2014-01-21 09:30:55 C 07 32 07.232 +42 50 11.57 L F51
2016-01-04 09:23:24 C 07 07 48.496 +41 35 51.91 L F51
2016-01-04 09:39:59 C 07 07 47.097 +41 35 55.50 L F51
2016-02-03 07:28:48 C 06 15 05.197 +41 40 33.78 L F51
2016-02-03 07:48:20 C 06 15 04.120 +41 40 30.52 L F51
2016-02-03 08:06:14 C 06 15 03.179 +41 40 27.67 L F51
2016-02-03 08:24:10 C 06 15 02.204 +41 40 24.75 L F51
2021-11-05 09:11:49 C 06 08 30.35 +33 35 05.7 V G96
2021-11-05 09:19:25 C 06 08 30.12 +33 35 07.9 V G96
2021-11-05 09:30:02 C 06 08 29.65 +33 35 11.4 V G96
2021-12-04 08:56:25 C 05 25 36.84 +36 21 18.4 V G96
2021-12-04 09:04:15 C 05 25 36.19 +36 21 19.6 V G96
2021-12-04 09:12:04 C 05 25 35.55 +36 21 20.1 V G96
2021-12-04 09:19:51 C 05 25 34.90 +36 21 21.1 V G96
2022-01-10 02:03:33 C 04 25 10.10 +35 26 10.5 V G96
2022-01-10 02:11:47 C 04 25 09.83 +35 26 09.2 V G96
2022-01-10 02:21:44 C 04 25 09.37 +35 26 07.9 V G96
2022-01-10 02:29:56 C 04 25 08.98 +35 26 06.1 V G96
2022-10-31 12:14:58 C 11 52 10.528 +11 04 25.14 V V00
2022-10-31 12:20:32 C 11 52 11.082 +11 04 21.50 V V00
2022-10-31 12:26:06 C 11 52 11.651 +11 04 17.83 V V00
2022-10-31 12:31:40 C 11 52 12.162 +11 04 14.66 V V00
2023-10-09 11:24:49 C 05 41 32.759 +28 41 18.89 V G96
2023-10-09 11:33:02 C 05 41 32.723 +28 41 21.01 V G96
2023-10-09 11:41:14 C 05 41 32.705 +28 41 22.96 V 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)