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
2017-11-15 09:33:41 C 02 30 28.87 -03 37 45.9 U T08
2017-11-15 09:40:22 C 02 30 28.41 -03 37 55.2 U T08
2017-11-15 09:45:51 C 02 30 28.06 -03 38 03.1 U T08
2017-11-15 09:52:25 C 02 30 27.64 -03 38 11.8 U T08
2017-11-15 09:58:52 C 02 30 27.20 -03 38 21.0 U T08
2017-11-17 00:02:20 C 02 28 05.38 -04 31 00.8 q 160
2017-11-17 00:05:19 C 02 28 05.20 -04 31 02.7 q 160
2017-11-17 00:08:21 C 02 28 05.09 -04 31 06.0 q 160
2017-11-19 06:27:33 C 02 24 51.10 -05 42 46.7 U G96
2017-11-19 06:35:11 C 02 24 50.64 -05 42 56.4 U G96
2017-11-19 06:42:45 C 02 24 50.18 -05 43 06.2 U G96
2017-11-19 06:50:18 C 02 24 49.74 -05 43 15.8 U G96
2017-11-20 07:09:40 C 02 23 26.10 -06 14 02.5 U 703
2017-11-20 07:17:24 C 02 23 25.66 -06 14 12.1 U 703
2017-11-20 07:25:11 C 02 23 25.18 -06 14 22.1 U 703
2017-11-20 07:32:58 C 02 23 24.69 -06 14 31.2 U 703
2017-11-20 08:37:20 C 02 23 21.344 -06 15 50.31 L F51
2017-11-20 08:55:40 C 02 23 20.262 -06 16 13.12 L F51
2017-11-20 09:13:55 C 02 23 19.185 -06 16 35.85 L F51
2017-11-20 09:32:08 C 02 23 18.110 -06 16 58.49 L F51
2017-11-21 09:12:14 C 02 21 59.11 -06 46 02.6 U T05
2017-11-21 09:24:59 C 02 21 58.39 -06 46 18.0 U T05
2017-11-21 09:39:22 C 02 21 57.56 -06 46 35.7 U T05
2017-11-21 09:53:34 C 02 21 56.77 -06 46 52.6 U T05
2017-11-23 08:52:29 C 02 19 26.59 -07 42 08.8 U T08
2017-11-23 09:04:16 C 02 19 25.97 -07 42 22.5 U T08
2017-11-23 09:16:01 C 02 19 25.37 -07 42 36.1 U T08
2017-11-23 09:27:41 C 02 19 24.74 -07 42 49.4 U T08
2017-11-24 06:18:06 C 02 18 21.02 -08 06 18.0 U 703
2017-11-24 06:27:56 C 02 18 20.52 -08 06 30.1 U 703
2017-11-24 06:37:34 C 02 18 20.01 -08 06 41.0 U 703
2017-11-24 06:47:12 C 02 18 19.50 -08 06 51.6 U 703
2017-11-28 05:42:58 C 02 13 53.26 -09 45 41.4 U 703
2017-11-28 05:49:16 C 02 13 53.02 -09 45 47.0 U 703
2017-11-28 05:55:33 C 02 13 52.72 -09 45 53.2 U 703
2017-11-28 06:01:49 C 02 13 52.44 -09 45 58.6 U 703
2017-12-08 08:02:23 C 02 05 41.04 -13 00 17.0 U T08
2017-12-08 08:24:48 C 02 05 40.43 -13 00 32.6 U T08
2017-12-08 08:35:21 C 02 05 40.11 -13 00 38.8 U T08
2017-12-08 08:39:19 C 02 05 40.05 -13 00 40.9 U T08
2017-12-09 05:09:27 C 02 05 11.19 -13 13 36.8 U 703
2017-12-09 05:17:29 C 02 05 11.01 -13 13 41.4 U 703
2017-12-09 05:25:31 C 02 05 10.79 -13 13 46.6 U 703
2017-12-09 05:33:34 C 02 05 10.65 -13 13 51.4 U 703
2017-12-10 08:06:37 C 02 04 36.16 -13 29 46.5 U T05
2017-12-10 08:16:34 C 02 04 35.93 -13 29 52.4 U T05
2017-12-10 08:26:28 C 02 04 35.74 -13 29 58.4 U T05
2017-12-10 08:36:24 C 02 04 35.47 -13 30 03.4 U T05
2017-12-16 04:09:33 C 02 02 28.40 -14 40 26.6 U 703
2017-12-16 04:17:24 C 02 02 28.32 -14 40 31.3 U 703