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
2018-11-24 16:44:39 s 1 -173744.73 9 +267878.30 7350.0 C57
2018-11-24 17:14:39 S 04 04 17.947 -51 41 21.44 V C57
2018-11-24 17:14:39 s 1 -174238.63 2 +266447.00 2300.0 C57
2018-11-24 18:14:39 S 04 04 11.314 -51 43 00.98 V C57
2018-11-24 18:14:39 s 1 -175206.32 5 +263554.25 3030.0 C57
2018-11-24 18:44:39 S 04 04 08.616 -51 43 42.89 V C57
2018-11-24 18:44:39 s 1 -175679.98 7 +262092.75 8050.0 C57
2018-11-24 19:14:39 S 04 04 05.734 -51 44 26.66 V C57
2018-11-24 19:14:39 s 1 -176146.76 8 +260621.14 5670.0 C57
2018-11-24 19:44:39 S 04 04 02.839 -51 45 08.24 V C57
2018-11-24 19:44:39 s 1 -176606.59 6 +259139.41 5500.0 C57
2018-11-24 20:14:39 S 04 04 00.065 -51 45 50.69 V C57
2018-11-24 20:14:39 s 1 -177059.40 0 +257647.52 7150.0 C57
2018-11-24 21:44:39 S 04 03 51.252 -51 48 07.38 V C57
2018-11-24 21:44:39 s 1 -178374.93 7 +253110.72 8990.0 C57
2018-11-24 22:14:39 S 04 03 48.022 -51 48 51.01 V C57
2018-11-24 22:14:39 s 1 -178798.90 9 +251578.01 3870.0 C57
2018-11-24 22:44:39 S 04 03 45.194 -51 49 34.32 V C57
2018-11-24 22:44:39 s 1 -179215.48 4 +250035.03 8510.0 C57
2018-11-24 23:44:39 S 04 03 39.106 -51 51 04.68 V C57
2018-11-24 23:44:39 s 1 -180026.12 7 +246918.21 5380.0 C57
2018-11-25 00:14:39 S 04 03 36.264 -51 51 48.67 V C57
2018-11-25 00:14:39 s 1 -180420.03 7 +245344.32 6720.0 C57
2018-11-25 00:44:39 S 04 03 33.626 -51 52 32.05 V C57
2018-11-25 00:44:39 s 1 -180806.23 1 +243760.07 6080.0 C57
2018-11-25 01:14:39 S 04 03 30.696 -51 53 12.34 V C57
2018-11-25 01:14:39 s 1 -181184.62 6 +242165.45 2990.0 C57
2018-11-25 02:44:39 S 04 03 21.890 -51 55 24.53 V C57
2018-11-25 02:44:39 s 1 -182272.17 4 +237319.11 4430.0 C57
2018-11-25 05:14:39 S 04 03 08.270 -51 58 52.61 V C57
2018-11-25 05:14:39 s 1 -183920.69 1 +229032.21 3390.0 C57
2018-11-25 06:14:39 S 04 03 02.232 -52 00 26.96 V C57
2018-11-25 06:14:39 s 1 -184520.53 8 +225643.51 2460.0 C57
2018-11-25 06:44:39 S 04 02 59.345 -52 01 02.60 V C57
2018-11-25 06:44:39 s 1 -184807.31 6 +223933.22 340.0 C57
2018-11-25 08:14:39 S 04 02 50.786 -52 03 10.94 V C57
2018-11-25 08:14:39 s 1 -185613.86 9 +218738.29 720.0 C57
2018-11-25 08:44:39 S 04 02 48.048 -52 03 52.99 V C57
2018-11-25 08:44:39 s 1 -185864.44 9 +216985.22 1190.0 C57
2018-11-25 09:14:39 S 04 02 45.775 -52 04 33.46 V C57
2018-11-25 09:14:39 s 1 -186105.71 9 +215221.40 850.0 C57
2018-11-25 09:44:39 S 04 02 42.742 -52 05 12.62 V C57
2018-11-25 09:44:39 s 1 -186337.57 0 +213446.79 9110.0 C57
2018-11-25 10:44:39 S 04 02 36.941 -52 06 40.39 V C57
2018-11-25 10:44:39 s 1 -186772.57 4 +209865.14 8960.0 C57
2018-11-25 11:44:39 S 04 02 31.608 -52 08 02.76 V C57
2018-11-25 11:44:39 s 1 -187168.55 8 +206240.08 5710.0 C57
2018-11-25 13:14:39 S 04 02 23.935 -52 10 03.25 V C57
2018-11-25 13:14:39 s 1 -187687.32 1 +200720.67 4860.0 C57
2018-11-25 14:14:39 S 04 02 18.418 -52 11 25.30 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)