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
2025-12-15 09:50:21 C 03 12 44.893 +27 23 00.30 X F51
2025-12-15 10:33:18 C 03 12 43.30 +27 22 52.0 V D29
2025-12-15 10:53:40 C 03 12 42.24 +27 22 50.2 V D29
2025-12-15 11:14:01 C 03 12 41.20 +27 22 47.0 V D29
2025-12-22 01:36:35 C 03 05 57.260 +27 01 37.88 V G96
2025-12-22 01:44:37 C 03 05 56.965 +27 01 37.02 V G96
2025-12-22 01:52:38 C 03 05 56.670 +27 01 36.08 V G96
2025-12-22 02:00:39 C 03 05 56.389 +27 01 35.00 V G96
2025-12-25 05:27:03 C 03 03 28.947 +26 52 29.17 X F51
2025-12-25 05:41:02 C 03 03 28.508 +26 52 27.59 X F51
2025-12-25 05:54:59 C 03 03 28.083 +26 52 25.89 X F51
2025-12-25 15:24:44 C 03 03 11.19 +26 51 18.8 V D29
2025-12-25 15:45:06 C 03 03 10.59 +26 51 16.7 V D29
2025-12-25 16:05:28 C 03 03 10.00 +26 51 14.3 V D29
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)