159399 (1998 UL1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2139509061 ± 8.61e-09
Semi-major axis (a)1.5269676489 AU ± 5.31e-10
Inclination (i)41.96806947° ± 8.25e-07
Long. of Asc. Node (Ω)214.84517905° ± 4.95e-07
Arg. of Perihelion (ω)353.26133400° ± 1.29e-06
Mean Anomaly (M)298.21637405° ± 1.38e-06
Mean Motion (n)0.5223571242°/day ± 2.72e-10
Perihelion dist (q)1.20027154 AU ± 1.32e-08
Aphelion dist (Q)1.85366376 AU ± 1.32e-08
Orbital Period1.88688205 yr ± 9.84e-10
Physical Parameters
H (abs. magnitude)16.50
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.058″
Uncertainty0
Orbit TypeAmor
MOID0.195291 AU
Observations Used1813
Gaia Obs Used59
Oppositions9
Arc Total1998-2017
First Observation Used1998-09-28
Last Observation Used2024-12-09
Observations (1949)
Date Type RA Dec Mag Band Observatory
2024-05-22 07:28:26 C 12 10 59.052 +25 26 58.70 V 703
2024-05-22 07:31:40 C 12 10 59.401 +25 27 05.15 V 703
2024-05-22 07:34:54 C 12 10 59.815 +25 27 13.21 V 703
2024-05-22 07:38:08 C 12 11 00.222 +25 27 21.31 V 703
2024-05-22 07:48:20 C 12 11 02.102 +25 27 52.06 V T08
2024-05-22 07:53:53 C 12 11 02.734 +25 28 04.84 V T08
2024-05-22 08:01:54 C 12 11 03.643 +25 28 23.34 V T08
2024-05-22 08:16:25 C 12 11 05.282 +25 28 56.68 V T08
2024-05-22 09:37:38 S 12 11 15.77 +25 32 02.9 L C51
2024-05-25 07:51:11 C 12 19 29.758 +28 01 06.92 V T08
2024-05-25 07:57:07 C 12 19 30.420 +28 01 18.37 V T08
2024-05-25 08:05:28 C 12 19 31.325 +28 01 34.21 V T08
2024-05-25 08:21:40 C 12 19 33.108 +28 02 05.24 V T08
2024-05-27 06:17:24 C 12 24 48.740 +29 26 17.95 V 703
2024-05-27 06:20:23 C 12 24 49.075 +29 26 22.92 V 703
2024-05-27 06:23:23 C 12 24 49.403 +29 26 28.18 V 703
2024-05-27 06:26:23 C 12 24 49.738 +29 26 33.32 V 703
2024-05-27 07:52:42 C 12 24 59.916 +29 29 08.05 V T05
2024-05-27 07:57:55 C 12 25 00.487 +29 29 16.87 V T05
2024-05-27 08:06:23 C 12 25 01.392 +29 29 31.42 V T05
2024-05-27 08:26:23 C 12 25 03.562 +29 30 05.58 V T05
2024-05-27 09:21:35 C 12 25 09.553 +29 31 39.23 X F52
2024-05-27 09:37:40 C 12 25 11.306 +29 32 06.48 X F52
2024-05-27 09:53:48 C 12 25 13.080 +29 32 33.81 X F52
2024-05-27 10:09:50 C 12 25 14.843 +29 33 00.86 X F52
2024-05-28 06:11:28 C 12 27 30.874 +30 06 30.24 V 703
2024-05-28 06:14:44 C 12 27 31.241 +30 06 35.57 V 703
2024-05-28 06:18:01 C 12 27 31.561 +30 06 40.75 V 703
2024-05-28 06:21:17 C 12 27 31.936 +30 06 46.33 V 703
2024-05-28 07:37:51 C 12 27 40.973 +30 08 56.08 V T05
2024-05-28 07:43:04 C 12 27 41.537 +30 09 04.43 V T05
2024-05-28 07:51:51 C 12 27 42.473 +30 09 18.54 V T05
2024-05-28 08:06:58 C 12 27 44.081 +30 09 42.88 V T05
2024-05-29 07:51:48 C 12 30 23.573 +30 47 10.28 V T08
2024-05-29 08:02:27 C 12 30 24.696 +30 47 26.34 V T08
2024-05-29 08:06:26 C 12 30 25.130 +30 47 32.28 V T08
2024-05-29 08:29:55 C 12 30 27.629 +30 48 08.03 V T08
2024-05-30 07:57:52 C 12 33 03.895 +31 22 56.86 V T08
2024-05-30 08:02:08 C 12 33 04.337 +31 23 02.87 V T08
2024-05-30 08:34:05 C 12 33 07.709 +31 23 48.44 V T08
2024-05-30 08:44:47 C 12 33 08.844 +31 24 03.38 V T08
2024-05-31 06:42:56 C 12 35 33.590 +31 54 40.64 V 703
2024-05-31 06:46:13 C 12 35 33.936 +31 54 45.14 V 703
2024-05-31 06:49:29 C 12 35 34.292 +31 54 49.28 V 703
2024-05-31 06:52:46 C 12 35 34.660 +31 54 53.86 V 703
2024-05-31 07:42:59 C 12 35 40.632 +31 56 08.02 V T05
2024-05-31 07:47:38 C 12 35 41.119 +31 56 14.28 V T05
2024-05-31 07:55:29 C 12 35 41.928 +31 56 24.76 V T05
2024-05-31 08:10:08 C 12 35 43.474 +31 56 44.45 V T05
2024-06-01 08:00:15 C 12 38 19.361 +32 28 03.18 V T05