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
2024-04-05 02:05:19 C 09 27 59.470 -59 51 42.80 V W68
2024-04-05 02:25:20 C 09 28 02.062 -59 50 52.04 V W68
2024-04-05 02:49:22 C 09 28 05.177 -59 49 50.99 V W68
2024-04-10 11:26:25 C 09 46 57.09 -53 30 08.5 V P14
2024-04-10 11:59:50 C 09 47 01.73 -53 28 16.4 V P14
2024-04-10 12:32:58 C 09 47 06.39 -53 26 21.6 V P14
2024-04-11 20:27:07 C 09 51 57.151 -51 32 55.97 V M22
2024-04-11 20:55:09 C 09 52 01.188 -51 31 11.71 V M22
2024-04-11 21:25:15 C 09 52 05.537 -51 29 19.50 V M22
2024-04-16 02:13:50 C 10 07 45.043 -44 34 00.55 V W68
2024-04-16 02:29:48 C 10 07 47.400 -44 32 47.29 V W68
2024-04-16 02:34:25 C 10 07 48.072 -44 32 26.27 V W68
2024-04-16 02:43:43 C 10 07 49.442 -44 31 43.72 V W68
2024-04-17 20:01:32 C 10 14 18.305 -41 15 51.16 V M22
2024-04-17 20:06:49 C 10 14 19.082 -41 15 25.13 V M22
2024-04-17 20:14:44 C 10 14 20.254 -41 14 46.03 V M22
2024-04-17 20:29:50 C 10 14 22.498 -41 13 31.08 V M22
2024-04-18 20:08:42 C 10 18 05.400 -39 14 38.62 V M22
2024-04-18 20:16:16 C 10 18 06.526 -39 13 59.63 V M22
2024-04-18 20:21:04 C 10 18 07.231 -39 13 34.97 V M22
2024-04-18 20:35:16 C 10 18 09.331 -39 12 21.85 V M22
2024-04-19 19:52:27 C 10 21 48.922 -37 10 40.51 V M22
2024-04-19 19:56:34 C 10 21 49.524 -37 10 18.73 V M22
2024-04-19 20:05:18 C 10 21 50.815 -37 09 31.93 V M22
2024-04-19 20:24:20 C 10 21 53.633 -37 07 50.27 V M22
2024-04-22 20:25:53 C 10 33 08.820 -30 25 11.53 V M22
2024-04-22 20:31:08 C 10 33 09.598 -30 24 40.90 V M22
2024-04-22 20:45:19 C 10 33 11.686 -30 23 17.84 V M22
2024-04-22 20:52:41 C 10 33 12.770 -30 22 34.57 V M22
2024-04-23 20:39:30 C 10 36 54.247 -28 02 15.72 V M22
2024-04-23 20:44:09 C 10 36 54.924 -28 01 47.71 V M22
2024-04-23 20:54:05 C 10 36 56.386 -28 00 48.31 V M22
2024-04-23 21:13:41 C 10 36 59.268 -27 58 51.02 V M22
2024-04-25 02:18:48 C 10 41 29.016 -25 03 26.50 V W68
2024-04-25 02:24:11 C 10 41 29.803 -25 02 53.70 V W68
2024-04-25 02:32:49 C 10 41 31.049 -25 02 01.10 V W68
2024-04-25 02:52:50 C 10 41 33.982 -24 59 58.52 V W68
2024-04-25 03:01:35 C 10 41 35.261 -24 59 05.17 V W68
2024-04-25 03:06:11 C 10 41 35.926 -24 58 37.02 V W68
2024-04-25 03:17:29 C 10 41 37.584 -24 57 27.76 V W68
2024-04-25 03:48:27 C 10 41 42.118 -24 54 18.14 V W68
2024-04-27 19:12:19 C 10 51 23.48 -18 23 25.8 X G02
2024-04-27 19:18:13 C 10 51 24.33 -18 22 49.0 X G02
2024-04-27 19:23:51 C 10 51 25.14 -18 22 13.8 X G02
2024-04-27 22:34:10 C 10 51 52.471 -18 01 49.37 V M22
2024-04-27 22:40:19 C 10 51 53.369 -18 01 10.81 V M22
2024-04-27 22:47:54 C 10 51 54.478 -18 00 23.36 V M22
2024-04-27 22:50:41 C 10 51 54.886 -18 00 05.98 V M22
2024-04-27 22:54:48 C 10 51 55.495 -17 59 40.34 V M22
2024-04-27 23:02:17 C 10 51 56.594 -17 58 53.54 V M22