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
2018-11-22 18:14:39 s 1 -105842.23 8 +359350.84 5590.0 C57
2018-11-22 18:44:39 S 04 09 32.194 -50 21 58.97 V C57
2018-11-22 18:44:39 s 1 -106744.94 4 +358788.02 1540.0 C57
2018-11-22 19:14:39 S 04 09 28.656 -50 22 52.86 V C57
2018-11-22 19:14:39 s 1 -107644.91 5 +358216.31 2890.0 C57
2018-11-22 20:44:39 S 04 09 17.258 -50 25 51.28 V C57
2018-11-22 20:44:39 s 1 -110328.14 1 +356447.76 7730.0 C57
2018-11-22 21:44:39 S 04 09 09.965 -50 27 41.76 V C57
2018-11-22 21:44:39 s 1 -112102.76 5 +355224.16 5010.0 C57
2018-11-23 02:14:39 S 04 08 37.248 -50 36 11.23 V C57
2018-11-23 02:14:39 s 1 -119941.27 5 +349275.44 8050.0 C57
2018-11-23 02:44:39 S 04 08 33.533 -50 37 05.41 V C57
2018-11-23 02:44:39 s 1 -120796.74 2 +348569.66 820.0 C57
2018-11-23 03:14:39 S 04 08 30.120 -50 37 58.12 V C57
2018-11-23 03:14:39 s 1 -121649.00 1 +347854.88 6350.0 C57
2018-11-23 04:14:39 S 04 08 22.505 -50 39 49.54 V C57
2018-11-23 04:14:39 s 1 -123343.76 8 +346398.33 4960.0 C57
2018-11-23 04:44:39 S 04 08 18.996 -50 40 48.61 V C57
2018-11-23 04:44:39 s 1 -124186.21 4 +345656.55 7700.0 C57
2018-11-23 05:14:39 S 04 08 15.506 -50 41 40.99 V C57
2018-11-23 05:14:39 s 1 -125025.32 6 +344905.74 2490.0 C57
2018-11-23 05:44:39 S 04 08 12.038 -50 42 36.00 V C57
2018-11-23 05:44:39 s 1 -125861.07 0 +344145.92 9150.0 C57
2018-11-23 06:14:39 S 04 08 08.664 -50 43 30.04 V C57
2018-11-23 06:14:39 s 1 -126693.41 6 +343377.05 7500.0 C57
2018-11-23 07:44:39 S 04 07 57.425 -50 46 17.98 V C57
2018-11-23 07:44:39 s 1 -129169.73 1 +341016.18 920.0 C57
2018-11-23 08:14:39 S 04 07 54.379 -50 47 07.19 V C57
2018-11-23 08:14:39 s 1 -129988.15 1 +340211.10 4230.0 C57
2018-11-23 08:44:39 S 04 07 51.002 -50 47 58.02 V C57
2018-11-23 08:44:39 s 1 -130803.00 8 +339396.94 8310.0 C57
2018-11-23 09:14:39 S 04 07 47.726 -50 48 53.17 V C57
2018-11-23 09:14:39 s 1 -131614.26 5 +338573.70 2990.0 C57
2018-11-23 09:44:39 S 04 07 43.625 -50 49 52.79 V C57
2018-11-23 09:44:39 s 1 -132421.89 0 +337741.36 8080.0 C57
2018-11-23 13:14:39 S 04 07 19.315 -50 55 59.56 V C57
2018-11-23 13:14:39 s 1 -137970.62 4 +331659.56 8810.0 C57
2018-11-23 13:44:39 S 04 07 15.965 -50 56 51.14 V C57
2018-11-23 13:44:39 s 1 -138747.92 5 +330754.12 160.0 C57
2018-11-23 14:14:39 S 04 07 12.502 -50 57 43.74 V C57
2018-11-23 14:14:39 s 1 -139521.27 4 +329839.50 150.0 C57
2018-11-23 15:14:39 S 04 07 05.518 -50 59 28.43 V C57
2018-11-23 15:14:39 s 1 -141055.96 4 +327982.66 5230.0 C57
2018-11-23 15:44:39 S 04 07 02.136 -51 00 18.68 V C57
2018-11-23 15:44:39 s 1 -141817.23 1 +327040.42 9910.0 C57
2018-11-23 16:14:39 S 04 06 58.958 -51 01 09.70 V C57
2018-11-23 16:14:39 s 1 -142574.39 5 +326088.95 2410.0 C57
2018-11-23 18:14:39 S 04 06 45.266 -51 04 40.94 V C57
2018-11-23 18:14:39 s 1 -145561.24 9 +322190.56 6320.0 C57
2018-11-23 18:44:39 S 04 06 41.856 -51 05 30.77 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)