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
2015-11-08 05:10:30 C 00 51 03.33 +12 13 05.4 R G45
2015-11-08 05:17:26 C 00 51 03.09 +12 12 54.4 R G45
2015-11-08 05:24:43 C 00 51 02.82 +12 12 42.7 R G45
2015-11-12 03:45:42 C 00 48 10.63 +09 47 58.0 R G45
2015-11-12 03:48:08 C 00 48 10.56 +09 47 54.1 R G45
2015-11-12 03:53:42 C 00 48 10.39 +09 47 46.1 R G45
2015-11-12 04:02:12 C 00 48 10.15 +09 47 33.7 R G45
2015-11-12 04:04:43 C 00 48 10.08 +09 47 29.6 R G45
2015-11-12 04:10:24 C 00 48 09.91 +09 47 21.4 R G45
2015-11-12 04:18:07 C 00 48 09.70 +09 47 09.9 R G45
2015-11-12 04:18:12 C 00 48 09.69 +09 47 09.8 R G45
2015-11-12 05:10:50 C 00 48 08.18 +09 45 52.2 q 703
2015-11-12 05:18:12 C 00 48 08.05 +09 45 41.2 q 703
2015-11-12 05:25:34 C 00 48 07.78 +09 45 30.0 q 703
2015-11-12 05:32:55 C 00 48 07.58 +09 45 19.9 q 703
2015-11-15 08:19:26 C 00 46 21.84 +07 58 03.8 L T05
2015-11-15 08:54:34 C 00 46 21.04 +07 57 15.0 L T05
2015-11-15 09:39:16 C 00 46 20.07 +07 56 13.5 L T05
2015-11-15 10:14:32 C 00 46 19.21 +07 55 25.1 L T05
2015-11-19 05:38:07 C 00 44 46.87 +05 54 01.6 R G45
2015-11-19 05:45:24 C 00 44 46.76 +05 53 52.3 R G45
2015-11-19 06:01:02 C 00 44 46.53 +05 53 32.3 R G45
2015-11-19 06:08:09 C 00 44 46.40 +05 53 23.4 R G45
2015-11-21 03:47:12 C 00 44 15.04 +04 56 53.7 R G45
2015-11-21 03:55:06 C 00 44 14.96 +04 56 44.2 R G45
2015-11-21 04:02:23 C 00 44 14.84 +04 56 35.3 R G45
2015-11-21 04:09:36 C 00 44 14.76 +04 56 26.0 R G45
2015-11-26 20:36:12 C 00 43 35.27 +02 23 59.1 19.6 u J43
2015-11-26 20:51:57 C 00 43 35.24 +02 23 42.7 19.5 u J43
2015-11-26 21:07:38 C 00 43 35.22 +02 23 26.4 19.7 u J43
2015-11-26 21:23:22 C 00 43 35.19 +02 23 10.4 19.2 u J43
2015-11-28 06:20:16 C 00 43 37.610 +01 50 01.07 L F51
2015-11-28 06:38:38 C 00 43 37.610 +01 49 42.85 L F51
2015-11-28 06:57:11 C 00 43 37.613 +01 49 24.61 L F51
2015-11-28 07:15:30 C 00 43 37.621 +01 49 06.72 L F51
2015-11-29 12:28:03 C 00 43 43.47 +01 20 51.1 q D29
2015-11-29 12:50:06 C 00 43 43.52 +01 20 30.4 q D29
2015-11-29 13:12:10 C 00 43 43.53 +01 20 08.8 q D29
2015-12-01 06:09:25 C 00 43 57.638 +00 42 24.93 L F51
2015-12-01 06:24:33 C 00 43 57.713 +00 42 11.37 L F51
2015-12-01 06:39:42 C 00 43 57.786 +00 41 57.76 L F51
2015-12-01 06:54:50 C 00 43 57.863 +00 41 44.24 L F51
2015-12-03 03:49:10 C 00 44 20.63 +00 02 41.6 R G45
2015-12-03 03:57:07 C 00 44 20.69 +00 02 34.6 R G45
2015-12-03 04:05:27 C 00 44 20.75 +00 02 27.5 R G45
2015-12-03 04:14:52 C 00 44 20.83 +00 02 19.9 R G45
2015-12-03 04:23:10 C 00 44 20.89 +00 02 12.9 R G45
2015-12-04 04:05:17 C 00 44 36.14 -00 17 24.5 q 703
2015-12-04 04:11:47 C 00 44 36.14 -00 17 30.3 q 703
2015-12-04 04:18:15 C 00 44 36.22 -00 17 35.1 q 703