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
2017-12-16 04:25:16 C 02 02 28.29 -14 40 33.9 U 703
2017-12-16 04:33:08 C 02 02 28.19 -14 40 37.0 U 703
2017-12-23 04:17:04 C 02 01 51.29 -15 38 54.0 U G96
2017-12-23 04:24:35 C 02 01 51.29 -15 38 56.1 U G96
2017-12-23 04:32:08 C 02 01 51.30 -15 38 58.2 U G96
2017-12-23 04:39:40 C 02 01 51.30 -15 39 00.1 U G96
2018-01-06 05:46:32 C 02 06 18.320 -16 29 46.69 U F51
2018-01-06 06:04:39 C 02 06 18.704 -16 29 47.50 U F51
2018-01-06 06:22:46 C 02 06 19.092 -16 29 48.31 U F51
2018-01-06 06:40:58 C 02 06 19.485 -16 29 49.10 U F51
2018-01-19 02:53:27 C 02 15 56.26 -16 22 21.2 U G96
2018-01-19 03:01:35 C 02 15 56.71 -16 22 21.9 U G96
2018-01-19 03:09:44 C 02 15 57.01 -16 22 21.0 U G96
2018-01-19 03:17:51 C 02 15 57.31 -16 22 20.5 U G96
2018-01-20 05:23:08 C 02 16 58.806 -16 19 59.69 U F51
2018-01-20 05:38:59 C 02 16 59.410 -16 19 58.19 U F51
2018-01-20 05:54:46 C 02 17 00.012 -16 19 56.67 U F51
2018-01-20 06:10:32 C 02 17 00.619 -16 19 55.14 U F51
2019-09-27 01:45:07 C 04 51 22.66 +12 54 51.8 V C95
2019-09-27 02:09:28 C 04 51 23.17 +12 54 25.9 V C95
2019-09-30 10:10:31 C 04 53 05.90 +11 26 14.2 V G96
2019-09-30 10:17:53 C 04 53 06.04 +11 26 05.6 V G96
2019-09-30 10:25:16 C 04 53 06.16 +11 25 57.4 V G96
2019-09-30 10:32:41 C 04 53 06.28 +11 25 48.8 V G96
2019-09-30 13:21:02 C 04 53 09.50 +11 22 38.2 V T08
2019-09-30 13:26:28 C 04 53 09.53 +11 22 31.8 V T08
2019-09-30 13:34:20 C 04 53 09.72 +11 22 23.7 V T08
2019-09-30 13:51:17 C 04 53 10.00 +11 22 03.7 V T08
2019-10-05 12:32:55 C 04 54 53.953 +08 59 36.02 U F51
2019-10-05 12:49:01 C 04 54 54.089 +08 59 15.81 U F51
2019-10-05 13:05:08 C 04 54 54.228 +08 58 55.58 U F51
2019-10-06 09:58:56 C 04 55 06.39 +08 32 24.5 V 703
2019-10-06 10:06:39 C 04 55 06.53 +08 32 14.1 V 703
2019-10-06 10:14:22 C 04 55 06.51 +08 32 04.9 V 703
2019-10-06 10:22:04 C 04 55 06.54 +08 31 55.2 V 703
2019-10-08 10:48:17 C 04 55 27.37 +07 28 50.9 V 703
2019-10-08 10:55:52 C 04 55 27.45 +07 28 40.6 V 703
2019-10-08 11:03:27 C 04 55 27.45 +07 28 31.2 V 703
2019-10-08 11:11:03 C 04 55 27.43 +07 28 21.0 V 703
2019-10-13 09:40:28 C 04 55 34.11 +04 44 32.0 U I41
2019-10-13 10:20:57 C 04 55 33.88 +04 43 34.0 U I41
2019-10-13 10:21:36 C 04 55 33.89 +04 43 32.9 U I41
2019-10-13 10:32:14 C 04 55 33.81 +04 43 17.4 U I41
2019-10-13 12:04:45 C 04 55 33.28 +04 41 04.2 U I41
2019-10-20 09:43:09 C 04 53 48.22 +00 30 13.2 V 703
2019-10-20 09:58:27 C 04 53 47.99 +00 29 48.5 V 703
2019-10-20 10:06:07 C 04 53 47.92 +00 29 36.6 V 703
2019-10-22 10:01:13 C 04 52 51.75 -00 47 09.2 V 703
2019-10-22 10:16:26 C 04 52 51.32 -00 47 34.1 V 703
2019-10-22 10:24:02 C 04 52 51.13 -00 47 46.6 V 703