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
2018-11-23 18:44:39 s 1 -146297.31 6 +321192.77 4690.0 C57
2018-11-23 19:14:39 S 04 06 38.590 -51 06 17.71 V C57
2018-11-23 19:14:39 s 1 -147029.04 4 +320185.69 9590.0 C57
2018-11-23 19:44:39 S 04 06 35.438 -51 07 06.24 V C57
2018-11-23 19:44:39 s 1 -147756.39 3 +319169.29 790.0 C57
2018-11-23 21:14:39 S 04 06 24.926 -51 09 44.21 V C57
2018-11-23 21:14:39 s 1 -149911.75 3 +316064.09 9930.0 C57
2018-11-23 22:14:39 S 04 06 18.614 -51 11 23.86 V C57
2018-11-23 22:14:39 s 1 -151326.00 2 +313947.15 3350.0 C57
2018-11-23 23:44:39 S 04 06 08.443 -51 13 53.15 V C57
2018-11-23 23:44:39 s 1 -153412.53 4 +310701.28 9780.0 C57
2018-11-24 00:14:39 S 04 06 05.210 -51 14 38.54 V C57
2018-11-24 00:14:39 s 1 -154098.57 8 +309600.47 7310.0 C57
2018-11-24 00:44:39 S 04 06 02.071 -51 15 27.76 V C57
2018-11-24 00:44:39 s 1 -154779.81 5 +308490.22 8790.0 C57
2018-11-24 02:44:39 S 04 05 48.864 -51 18 44.71 V C57
2018-11-24 02:44:39 s 1 -157455.77 5 +303954.43 9280.0 C57
2018-11-24 03:14:39 S 04 05 45.838 -51 19 31.37 V C57
2018-11-24 03:14:39 s 1 -158112.28 7 +302796.71 6770.0 C57
2018-11-24 03:44:39 S 04 05 42.850 -51 20 19.90 V C57
2018-11-24 03:44:39 s 1 -158763.71 2 +301629.46 6690.0 C57
2018-11-24 05:44:39 S 04 05 29.844 -51 23 38.11 V C57
2018-11-24 05:44:39 s 1 -161317.57 6 +296864.74 5330.0 C57
2018-11-24 06:14:39 S 04 05 26.218 -51 24 20.41 V C57
2018-11-24 06:14:39 s 1 -161942.83 6 +295649.56 3370.0 C57
2018-11-24 07:44:39 S 04 05 16.975 -51 26 47.69 V C57
2018-11-24 07:44:39 s 1 -163786.10 5 +291946.14 1180.0 C57
2018-11-24 08:14:39 S 04 05 13.778 -51 27 32.11 V C57
2018-11-24 08:14:39 s 1 -164389.51 7 +290692.31 720.0 C57
2018-11-24 08:44:39 S 04 05 10.505 -51 28 21.36 V C57
2018-11-24 08:44:39 s 1 -164987.33 6 +289428.79 9920.0 C57
2018-11-24 09:14:39 S 04 05 07.121 -51 29 04.16 V C57
2018-11-24 09:14:39 s 1 -165579.50 7 +288155.54 8470.0 C57
2018-11-24 11:14:39 S 04 04 54.790 -51 32 15.36 V C57
2018-11-24 11:14:39 s 1 -167890.61 1 +282965.00 230.0 C57
2018-11-24 11:44:39 S 04 04 51.756 -51 33 00.29 V C57
2018-11-24 11:44:39 s 1 -168453.71 0 +281642.88 1010.0 C57
2018-11-24 13:14:39 S 04 04 42.113 -51 35 19.79 V C57
2018-11-24 13:14:39 s 1 -170106.85 6 +277617.48 7110.0 C57
2018-11-24 13:44:39 S 04 04 39.161 -51 36 07.67 V C57
2018-11-24 13:44:39 s 1 -170644.87 4 +276256.26 6110.0 C57
2018-11-24 14:14:39 S 04 04 36.317 -51 36 52.49 V C57
2018-11-24 14:14:39 s 1 -171177.44 6 +274884.82 1160.0 C57
2018-11-24 14:44:39 S 04 04 33.278 -51 37 36.77 V C57
2018-11-24 14:44:39 s 1 -171703.73 2 +273503.44 2070.0 C57
2018-11-24 15:44:39 S 04 04 26.515 -51 39 16.13 V C57
2018-11-24 15:44:39 s 1 -172737.19 1 +270710.84 80.0 C57
2018-11-24 16:14:39 S 04 04 23.935 -51 39 58.79 V C57
2018-11-24 16:14:39 s 1 -173244.23 6 +269299.57 6490.0 C57
2018-11-24 16:44:39 S 04 04 21.065 -51 40 39.76 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)