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
2019-11-18 10:21:50 C 04 21 44.46 -18 50 08.1 V 703
2019-11-20 11:15:30 C 04 18 17.85 -20 02 19.2 V T08
2019-11-20 11:20:48 C 04 18 17.44 -20 02 27.2 V T08
2019-11-20 11:28:47 C 04 18 16.87 -20 02 38.9 V T08
2019-11-20 11:43:24 C 04 18 15.79 -20 02 59.2 V T08
2019-11-21 14:08:38 C 04 16 21.74 -20 40 33.3 q E89
2019-11-21 14:33:22 C 04 16 19.98 -20 41 08.8 q E89
2019-11-23 07:40:08 C 04 13 20.67 -21 38 03.7 V 703
2019-11-23 07:47:39 C 04 13 20.03 -21 38 14.3 V 703
2019-11-23 07:55:11 C 04 13 19.48 -21 38 23.8 V 703
2019-11-23 08:02:42 C 04 13 18.90 -21 38 33.4 V 703
2019-11-24 11:59:36 C 04 11 15.38 -22 15 41.2 V T08
2019-11-24 12:04:22 C 04 11 15.03 -22 15 47.3 V T08
2019-11-24 12:11:47 C 04 11 14.45 -22 15 56.7 V T08
2019-11-24 12:25:51 C 04 11 13.38 -22 16 15.1 V T08
2019-11-26 12:14:21 C 04 07 40.90 -23 17 00.3 V T05
2019-11-26 12:18:59 C 04 07 40.54 -23 17 05.8 V T05
2019-11-26 12:29:35 C 04 07 39.72 -23 17 18.5 V T05
2019-11-26 12:44:33 C 04 07 38.58 -23 17 36.9 V T05
2019-11-28 10:00:48 C 04 04 17.09 -24 11 45.7 V T08
2019-11-28 10:06:46 C 04 04 16.63 -24 11 52.5 V T08
2019-11-28 10:14:28 C 04 04 16.02 -24 12 01.5 V T08
2019-11-28 10:35:17 C 04 04 14.42 -24 12 25.7 V T08
2019-12-04 09:40:46 C 03 53 45.00 -26 41 03.0 V T05
2019-12-04 09:55:19 C 03 53 43.93 -26 41 15.9 V T05
2019-12-04 10:01:16 C 03 53 43.46 -26 41 21.1 V T05
2019-12-04 10:05:53 C 03 53 43.11 -26 41 25.5 V T05
2019-12-04 10:09:52 C 03 53 42.84 -26 41 28.9 V T05
2019-12-04 10:15:11 C 03 53 42.43 -26 41 34.1 V T05
2019-12-04 10:32:18 C 03 53 41.15 -26 41 49.4 V T05
2019-12-16 09:04:28 C 03 35 05.18 -29 57 49.9 V T05
2019-12-16 09:09:04 C 03 35 04.87 -29 57 51.6 V T05
2019-12-16 09:18:28 C 03 35 04.26 -29 57 56.2 V T05
2019-12-16 09:38:26 C 03 35 03.06 -29 58 05.2 V T05
2019-12-20 09:03:17 C 03 30 01.03 -30 36 00.0 V T05
2019-12-20 09:07:15 C 03 30 00.85 -30 36 01.4 V T05
2019-12-20 09:14:38 C 03 30 00.41 -30 36 03.3 V T05
2019-12-20 09:29:23 C 03 29 59.68 -30 36 08.6 V T05
2019-12-24 08:10:50 C 03 25 42.69 -31 02 04.5 V T05
2019-12-24 08:16:32 C 03 25 42.43 -31 02 05.4 V T05
2019-12-24 08:26:37 C 03 25 42.03 -31 02 07.0 V T05
2019-12-24 08:30:34 C 03 25 41.85 -31 02 08.1 V T05
2019-12-24 08:35:11 C 03 25 41.60 -31 02 09.9 V T05
2019-12-28 06:37:03 C 03 22 11.547 -31 17 36.52 U F51
2019-12-28 06:51:47 C 03 22 11.014 -31 17 38.12 U F51
2019-12-28 08:08:02 C 03 22 08.27 -31 17 46.9 V T05
2019-12-28 08:13:20 C 03 22 08.15 -31 17 47.9 V T05
2019-12-28 08:20:46 C 03 22 07.87 -31 17 48.2 V T05
2019-12-28 08:35:01 C 03 22 07.36 -31 17 49.9 V T05
2020-01-03 06:37:28 C 03 18 18.85 -31 24 19.9 V T08