54660 (2000 UJ1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2806049113 ± 2.10e-08
Semi-major axis (a)1.4767416404 AU ± 8.31e-10
Inclination (i)46.68951534° ± 1.83e-06
Long. of Asc. Node (Ω)223.70509281° ± 7.62e-07
Arg. of Perihelion (ω)158.04014923° ± 3.17e-06
Mean Anomaly (M)347.01225700° ± 3.59e-06
Mean Motion (n)0.5492315724°/day ± 4.64e-10
Perihelion dist (q)1.06236068 AU ± 3.10e-08
Aphelion dist (Q)1.89112260 AU ± 3.10e-08
Orbital Period1.79455503 yr ± 1.52e-09
Physical Parameters
H (abs. magnitude)17.92
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.013″
Uncertainty0
Orbit TypeAmor
MOID0.086223 AU
Observations Used705
Radar Obs Used3
Gaia Obs Used108
Oppositions8
Arc Total2000-2025
First Observation Used2000-10-19
Last Observation Used2025-09-11
Observations (1006)
Date Type RA Dec Mag Band Observatory
2018-11-20 22:44:39 s 1 -19789.366 0 +374385.73 0.0 C57
2018-11-20 23:14:39 S 04 15 20.808 -48 46 52.90 V C57
2018-11-20 23:14:39 s 1 -20832.208 0 +374597.00 9330.0 C57
2018-11-21 00:14:39 S 04 15 12.422 -48 49 16.28 V C57
2018-11-21 00:14:39 s 1 -22916.187 0 +374992.24 3510.0 C57
2018-11-21 01:44:39 S 04 14 59.256 -48 53 04.34 V C57
2018-11-21 01:44:39 s 1 -26037.516 0 +375517.02 5910.0 C57
2018-11-21 02:14:39 S 04 14 55.135 -48 54 13.54 V C57
2018-11-21 02:14:39 s 1 -27076.624 0 +375673.83 8290.0 C57
2018-11-21 02:44:39 S 04 14 51.106 -48 55 22.62 V C57
2018-11-21 02:44:39 s 1 -28115.023 0 +375821.59 3390.0 C57
2018-11-21 04:14:39 S 04 14 37.817 -48 59 09.28 V C57
2018-11-21 04:14:39 s 1 -31225.725 0 +376210.68 6460.0 C57
2018-11-21 04:44:39 S 04 14 34.118 -49 00 13.10 V C57
2018-11-21 04:44:39 s 1 -32261.045 0 +376322.34 3910.0 C57
2018-11-21 05:14:39 S 04 14 29.750 -49 01 24.53 V C57
2018-11-21 05:14:39 s 1 -33295.535 0 +376424.99 4820.0 C57
2018-11-21 05:44:39 S 04 14 26.035 -49 02 28.54 V C57
2018-11-21 05:44:39 s 1 -34329.170 0 +376518.65 9350.0 C57
2018-11-21 07:14:39 S 04 14 12.571 -49 06 13.21 V C57
2018-11-21 07:14:39 s 1 -37424.705 0 +376745.71 6110.0 C57
2018-11-21 07:44:39 S 04 14 08.820 -49 07 19.96 V C57
2018-11-21 07:44:39 s 1 -38454.679 0 +376803.44 6570.0 C57
2018-11-21 08:14:39 S 04 14 04.790 -49 08 28.50 V C57
2018-11-21 08:14:39 s 1 -39483.678 0 +376852.22 1390.0 C57
2018-11-21 08:44:39 S 04 14 00.778 -49 09 34.42 V C57
2018-11-21 08:44:39 s 1 -40511.678 0 +376892.04 700.0 C57
2018-11-21 09:44:39 S 04 13 51.607 -49 12 09.18 V C57
2018-11-21 09:44:39 s 1 -42564.582 0 +376944.83 3420.0 C57
2018-11-21 10:44:39 S 04 13 44.006 -49 14 15.90 V C57
2018-11-21 10:44:39 s 1 -44613.200 0 +376961.87 5880.0 C57
2018-11-21 12:14:39 S 04 13 31.138 -49 17 49.45 V C57
2018-11-21 12:14:39 s 1 -47677.673 0 +376920.51 4130.0 C57
2018-11-21 13:44:39 S 04 13 19.128 -49 21 08.42 V C57
2018-11-21 13:44:39 s 1 -50731.424 0 +376798.94 3330.0 C57
2018-11-21 15:14:39 S 04 13 06.648 -49 24 38.81 V C57
2018-11-21 15:14:39 s 1 -53773.809 0 +376597.32 7370.0 C57
2018-11-21 15:44:39 S 04 13 02.582 -49 25 39.22 V C57
2018-11-21 15:44:39 s 1 -54785.300 0 +376512.34 4900.0 C57
2018-11-21 16:14:39 S 04 12 58.627 -49 26 47.69 V C57
2018-11-21 16:14:39 s 1 -55795.432 0 +376418.48 9090.0 C57
2018-11-21 17:44:39 S 04 12 45.821 -49 30 13.43 V C57
2018-11-21 17:44:39 s 1 -58817.436 0 +376083.67 3100.0 C57
2018-11-21 18:14:39 S 04 12 42.247 -49 31 18.34 V C57
2018-11-21 18:14:39 s 1 -59821.894 0 +375954.34 5390.0 C57
2018-11-21 18:44:39 S 04 12 38.206 -49 32 21.59 V C57
2018-11-21 18:44:39 s 1 -60824.873 0 +375816.14 5050.0 C57
2018-11-21 19:14:39 S 04 12 34.798 -49 33 20.52 V C57
2018-11-21 19:14:39 s 1 -61826.349 0 +375669.08 2240.0 C57
2018-11-21 21:14:39 S 04 12 18.110 -49 37 51.02 V C57
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2009-11-08 02:00:00 -25221.2766 1.5 Hz 2380 -1 -1
2009-11-09 02:00:00 -77044.423 2 Hz 2380 -1 -1
2009-11-10 01:45:00 -124399.2113 2 Hz 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)