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
2023-10-09 11:49:27 C 05 41 32.676 +28 41 25.19 V G96
2023-12-06 09:59:42 C 04 26 25.084 +33 12 17.86 V V00
2023-12-06 10:07:38 C 04 26 24.436 +33 12 17.42 V V00
2023-12-06 10:15:34 C 04 26 23.788 +33 12 16.99 V V00
2023-12-06 10:23:29 C 04 26 23.136 +33 12 16.60 V V00
2023-12-13 05:50:09 C 04 13 46.679 +33 00 19.76 V G96
2023-12-13 05:58:15 C 04 13 46.078 +33 00 19.01 V G96
2023-12-13 06:06:21 C 04 13 45.455 +33 00 18.14 V G96
2023-12-13 06:14:27 C 04 13 44.854 +33 00 17.53 V G96
2023-12-14 05:53:47 C 04 12 01.933 +32 57 47.88 V G96
2023-12-14 06:01:55 C 04 12 01.325 +32 57 46.94 V G96
2023-12-14 06:10:02 C 04 12 00.734 +32 57 46.04 V G96
2023-12-14 06:18:09 C 04 12 00.122 +32 57 45.36 V G96
2024-01-01 05:25:41 C 03 47 38.868 +31 54 36.61 V G96
2024-01-01 05:33:11 C 03 47 38.519 +31 54 35.17 V G96
2024-01-01 05:48:09 C 03 47 37.907 +31 54 32.65 V G96
2024-01-02 08:00:02 C 03 46 37.345 +31 50 21.93 X F52
2024-01-02 08:16:04 C 03 46 36.718 +31 50 19.41 X F52
2024-01-02 08:31:59 C 03 46 36.105 +31 50 16.71 X F52
2024-01-02 08:47:53 C 03 46 35.466 +31 50 13.87 X F52
2025-01-06 12:55:14 C 13 48 58.338 +03 04 04.55 V G96
2025-01-06 13:02:56 C 13 48 59.263 +03 03 59.58 V G96
2025-01-06 13:10:37 C 13 49 00.152 +03 03 54.72 V G96
2025-01-06 13:18:18 C 13 49 01.049 +03 03 50.29 V G96
2025-01-07 14:16:24 C 13 51 58.838 +02 48 04.30 X F51
2025-01-07 14:32:09 C 13 52 00.705 +02 47 53.92 X F51
2025-01-07 14:47:55 C 13 52 02.551 +02 47 44.25 X F51
2025-01-07 15:03:42 C 13 52 04.407 +02 47 34.16 X F51
2025-04-04 09:16:01 C 21 35 09.47 -19 21 12.3 X W84
2025-04-04 09:28:17 C 21 35 12.72 -19 21 06.2 X W84
2025-04-04 09:40:34 C 21 35 15.96 -19 21 00.9 X W84
2025-04-04 09:52:52 C 21 35 19.21 -19 20 55.3 X W84
2025-07-06 09:52:22 C 03 17 46.60 +11 50 32.8 W W84
2025-07-06 10:04:35 C 03 17 47.73 +11 50 40.2 W W84
2025-07-06 10:16:34 C 03 17 48.81 +11 50 47.1 W W84
2025-07-06 10:28:32 C 03 17 49.92 +11 50 53.9 W W84
2025-07-29 14:21:00 C 04 04 30.671 +16 23 55.62 X F52
2025-07-29 14:27:34 C 04 04 31.144 +16 23 58.52 X F52
2025-07-29 14:34:10 C 04 04 31.634 +16 24 01.26 X F52
2025-07-29 14:40:48 C 04 04 32.129 +16 24 04.11 X F52
2025-08-23 14:35:03 C 04 42 38.874 +20 01 35.61 X F51
2025-08-23 14:40:55 C 04 42 39.165 +20 01 37.53 X F51
2025-08-23 14:46:49 C 04 42 39.456 +20 01 39.45 X F51
2025-08-23 14:52:42 C 04 42 39.753 +20 01 41.33 X F51
2025-09-05 13:53:52 C 04 56 09.600 +21 36 48.61 X F51
2025-09-05 14:13:34 C 04 56 10.272 +21 36 54.43 X F51
2025-09-05 14:33:17 C 04 56 10.922 +21 37 00.43 X F51
2025-09-05 14:53:06 C 04 56 11.590 +21 37 06.43 X F51
2025-10-04 09:46:17 C 05 04 25.525 +24 57 20.27 V V00
2025-10-04 10:04:01 C 05 04 25.223 +24 57 25.34 V V00
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)