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
2018-11-21 21:14:39 s 1 -65816.745 0 +374992.34 9050.0 C57
2018-11-21 21:44:39 S 04 12 14.011 -49 38 54.60 V C57
2018-11-21 21:44:39 s 1 -66810.346 0 +374801.03 5980.0 C57
2018-11-21 23:44:39 S 04 11 57.852 -49 43 19.16 V C57
2018-11-21 23:44:39 s 1 -70768.029 0 +373947.40 8900.0 C57
2018-11-22 02:14:39 S 04 11 38.158 -49 48 37.37 V C57
2018-11-22 02:14:39 s 1 -75675.683 0 +372681.55 2440.0 C57
2018-11-22 02:44:39 S 04 11 34.452 -49 49 37.60 V C57
2018-11-22 02:44:39 s 1 -76651.708 0 +372401.88 9560.0 C57
2018-11-22 03:14:39 S 04 11 30.715 -49 50 39.62 V C57
2018-11-22 03:14:39 s 1 -77625.841 0 +372113.38 6500.0 C57
2018-11-22 04:44:39 S 04 11 18.648 -49 53 51.76 V C57
2018-11-22 04:44:39 s 1 -80536.632 0 +371194.90 2420.0 C57
2018-11-22 05:44:39 S 04 11 11.009 -49 55 51.67 V C57
2018-11-22 05:44:39 s 1 -82466.026 0 +370540.33 2840.0 C57
2018-11-22 06:14:39 S 04 11 07.294 -49 56 50.75 V C57
2018-11-22 06:14:39 s 1 -83428.275 0 +370198.87 4020.0 C57
2018-11-22 06:44:39 S 04 11 03.036 -49 57 55.48 V C57
2018-11-22 06:44:39 s 1 -84388.455 0 +369848.58 4370.0 C57
2018-11-22 07:14:39 S 04 10 58.862 -49 59 08.52 V C57
2018-11-22 07:14:39 s 1 -85346.542 0 +369489.46 3760.0 C57
2018-11-22 07:44:39 S 04 10 55.450 -50 00 02.16 V C57
2018-11-22 07:44:39 s 1 -86302.510 0 +369121.50 2030.0 C57
2018-11-22 08:14:39 S 04 10 51.773 -50 01 02.86 V C57
2018-11-22 08:14:39 s 1 -87256.333 0 +368744.71 9040.0 C57
2018-11-22 08:44:39 S 04 10 47.918 -50 02 03.01 V C57
2018-11-22 08:44:39 s 1 -88207.987 0 +368359.09 4650.0 C57
2018-11-22 10:14:39 S 04 10 36.194 -50 05 09.42 V C57
2018-11-22 10:14:39 s 1 -91049.668 0 +367149.19 1570.0 C57
2018-11-22 10:44:39 S 04 10 32.405 -50 06 09.43 V C57
2018-11-22 10:44:39 s 1 -91992.382 0 +366728.21 80.0 C57
2018-11-22 11:14:39 S 04 10 28.658 -50 07 08.33 V C57
2018-11-22 11:14:39 s 1 -92932.797 0 +366298.38 6440.0 C57
2018-11-22 12:14:39 S 04 10 20.712 -50 09 13.97 V C57
2018-11-22 12:14:39 s 1 -94806.623 0 +365412.20 2130.0 C57
2018-11-22 12:44:39 S 04 10 17.345 -50 10 13.55 V C57
2018-11-22 12:44:39 s 1 -95739.981 0 +364955.83 1150.0 C57
2018-11-22 13:14:39 S 04 10 13.181 -50 11 12.48 V C57
2018-11-22 13:14:39 s 1 -96670.934 0 +364490.61 7430.0 C57
2018-11-22 13:44:39 S 04 10 09.698 -50 12 08.57 V C57
2018-11-22 13:44:39 s 1 -97599.454 0 +364016.54 820.0 C57
2018-11-22 15:14:39 S 04 09 58.075 -50 15 09.25 V C57
2018-11-22 15:14:39 s 1 -100370.15 6 +362541.15 2050.0 C57
2018-11-22 15:44:39 S 04 09 54.622 -50 16 04.22 V C57
2018-11-22 15:44:39 s 1 -101288.68 0 +362031.62 2320.0 C57
2018-11-22 16:14:39 S 04 09 50.926 -50 17 06.58 V C57
2018-11-22 16:14:39 s 1 -102204.63 6 +361513.22 8920.0 C57
2018-11-22 16:44:39 S 04 09 47.066 -50 18 05.40 V C57
2018-11-22 16:44:39 s 1 -103117.99 8 +360985.95 1700.0 C57
2018-11-22 18:14:39 S 04 09 35.633 -50 20 59.68 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)