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
2018-11-25 14:14:39 s 1 -187981.60 0 +196986.24 5690.0 C57
2018-11-25 14:44:39 S 04 02 15.636 -52 12 04.18 V C57
2018-11-25 14:44:39 s 1 -188112.89 1 +195102.50 4410.0 C57
2018-11-25 16:14:39 S 04 02 07.903 -52 14 08.41 V C57
2018-11-25 16:14:39 s 1 -188441.79 3 +189384.95 4930.0 C57
2018-11-25 16:44:39 S 04 02 05.287 -52 14 48.12 V C57
2018-11-25 16:44:39 s 1 -188529.31 8 +187456.90 4020.0 C57
2018-11-25 17:14:39 S 04 02 02.683 -52 15 26.60 V C57
2018-11-25 17:14:39 s 1 -188605.55 6 +185517.72 1260.0 C57
2018-11-25 17:44:39 S 04 01 59.774 -52 16 05.34 V C57
2018-11-25 17:44:39 s 1 -188670.36 3 +183567.38 5840.0 C57
2018-11-25 18:44:39 S 04 01 54.706 -52 17 29.72 V C57
2018-11-25 18:44:39 s 1 -188765.09 8 +179633.15 3730.0 C57
2018-11-25 19:14:39 S 04 01 52.104 -52 18 08.03 V C57
2018-11-25 19:14:39 s 1 -188794.72 5 +177649.21 5340.0 C57
2018-11-25 19:44:39 S 04 01 49.591 -52 18 47.12 V C57
2018-11-25 19:44:39 s 1 -188812.31 9 +175654.03 900.0 C57
2018-11-25 20:14:39 S 04 01 47.503 -52 19 25.75 V C57
2018-11-25 20:14:39 s 1 -188817.72 4 +173647.59 9510.0 C57
2018-11-25 20:44:39 S 04 01 44.834 -52 20 05.75 V C57
2018-11-25 20:44:39 s 1 -188810.77 7 +171629.87 270.0 C57
2018-11-25 21:44:39 S 04 01 39.559 -52 21 25.78 V C57
2018-11-25 21:44:39 s 1 -188759.17 2 +167560.50 4500.0 C57
2018-11-25 22:14:39 S 04 01 36.967 -52 22 08.29 V C57
2018-11-25 22:14:39 s 1 -188714.17 5 +165508.82 6040.0 C57
2018-11-25 22:44:39 S 04 01 34.382 -52 22 38.50 V C57
2018-11-25 22:44:39 s 1 -188656.15 2 +163445.78 5900.0 C57
2018-12-11 16:05:59 S 03 37 45.353 -56 48 23.47 L C51
2018-12-11 19:14:18 S 03 37 37.781 -56 48 58.68 L C51
2018-12-12 04:39:48 S 03 37 16.169 -56 50 38.72 L C51
2018-12-12 07:48:07 S 03 37 09.271 -56 51 08.21 L C51
2018-12-12 10:56:37 S 03 37 02.513 -56 51 38.95 L C51
2018-12-12 14:05:07 S 03 36 55.476 -56 52 06.92 L C51
2018-12-12 18:47:41 S 03 36 45.206 -56 52 47.75 L C51
2018-12-12 18:47:52 S 03 36 45.199 -56 52 48.83 L C51
2018-12-12 21:56:11 S 03 36 38.585 -56 53 16.51 L C51
2020-07-17 11:18:53 C 04 15 28.99 +38 18 10.7 U I41
2020-07-17 11:25:54 C 04 15 30.18 +38 18 04.8 U I41
2020-07-17 11:32:55 C 04 15 31.34 +38 17 59.2 U I41
2020-07-17 11:39:57 C 04 15 32.55 +38 17 53.2 U I41
2020-07-29 11:27:34 C 05 02 06.01 +33 38 30.3 U I41
2020-07-29 11:34:48 C 05 02 07.17 +33 38 22.6 U I41
2020-07-29 11:42:01 C 05 02 08.27 +33 38 14.1 U I41
2020-07-29 11:56:31 C 05 02 10.51 +33 37 58.0 U I41
2023-04-15 09:40:48 C 13 31 53.087 -39 59 17.35 U F52
2023-04-15 09:55:35 C 13 31 51.850 -39 58 57.08 U F52
2023-04-15 10:10:17 C 13 31 50.616 -39 58 36.75 U F52
2023-04-29 03:07:33 C 13 07 41.06 -31 13 50.0 q X74
2023-04-29 03:12:16 C 13 07 40.69 -31 13 40.8 q X74
2023-04-29 03:16:51 C 13 07 40.49 -31 13 33.8 q X74
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)