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
2019-10-22 12:54:54 C 04 52 47.91 -00 51 49.8 V T05
2019-10-22 12:59:44 C 04 52 47.83 -00 51 57.9 V T05
2019-10-22 13:08:24 C 04 52 47.57 -00 52 12.0 V T05
2019-10-22 13:33:16 C 04 52 46.98 -00 52 52.2 V T05
2019-10-23 02:36:31 C 04 52 29.41 -01 14 08.3 q 160
2019-10-23 02:39:09 C 04 52 29.26 -01 14 12.6 q 160
2019-10-23 02:41:58 C 04 52 29.18 -01 14 17.1 q 160
2019-10-23 09:37:35 C 04 52 19.71 -01 25 35.3 V 703
2019-10-23 09:45:10 C 04 52 19.45 -01 25 48.5 V 703
2019-10-23 09:52:45 C 04 52 19.24 -01 26 00.4 V 703
2019-10-23 10:00:21 C 04 52 19.05 -01 26 12.8 V 703
2019-10-24 13:08:28 C 04 51 38.543 -02 10 49.60 U F52
2019-10-24 13:25:19 C 04 51 38.060 -02 11 17.45 U F52
2019-10-24 13:42:08 C 04 51 37.582 -02 11 45.23 U F52
2019-10-24 13:58:58 C 04 51 37.094 -02 12 13.07 U F52
2019-10-26 01:21:22 C 04 50 38.56 -03 11 07.8 q 160
2019-10-26 01:24:22 C 04 50 38.43 -03 11 14.0 q 160
2019-10-26 01:27:23 C 04 50 38.34 -03 11 18.7 q 160
2019-10-26 09:36:34 C 04 50 23.87 -03 24 57.4 V 703
2019-10-26 09:44:09 C 04 50 23.63 -03 25 10.3 V 703
2019-10-26 09:51:45 C 04 50 23.40 -03 25 23.0 V 703
2019-10-26 09:59:20 C 04 50 23.15 -03 25 35.7 V 703
2019-10-27 01:49:46 C 04 49 54.05 -03 52 16.7 q 160
2019-10-27 01:52:46 C 04 49 53.94 -03 52 22.4 q 160
2019-10-27 01:55:48 C 04 49 53.88 -03 52 27.5 q 160
2019-10-29 09:17:19 C 04 48 01.74 -05 26 26.7 V G96
2019-10-29 09:24:43 C 04 48 01.45 -05 26 39.4 V G96
2019-10-29 09:32:07 C 04 48 01.16 -05 26 52.1 V G96
2019-10-29 09:39:31 C 04 48 00.87 -05 27 04.7 V G96
2019-10-29 09:57:45 C 04 48 00.15 -05 27 35.6 V 703
2019-10-29 10:05:19 C 04 47 59.88 -05 27 48.7 V 703
2019-10-29 10:12:56 C 04 47 59.56 -05 28 02.0 V 703
2019-10-29 10:20:30 C 04 47 59.28 -05 28 14.4 V 703
2019-10-31 09:26:12 C 04 46 11.27 -06 49 04.6 V G96
2019-10-31 09:33:39 C 04 46 10.95 -06 49 17.4 V G96
2019-10-31 09:41:06 C 04 46 10.63 -06 49 30.3 V G96
2019-10-31 09:48:34 C 04 46 10.31 -06 49 43.1 V G96
2019-10-31 10:59:18 C 04 46 07.732 -06 51 43.25 U F52
2019-10-31 11:15:11 C 04 46 07.055 -06 52 10.59 U F52
2019-10-31 11:31:05 C 04 46 06.372 -06 52 37.95 U F52
2019-10-31 11:46:58 C 04 46 05.690 -06 53 05.39 U F52
2019-11-01 09:15:35 C 04 45 12.29 -07 30 09.2 V 703
2019-11-01 09:23:11 C 04 45 11.95 -07 30 22.4 V 703
2019-11-01 09:30:47 C 04 45 11.55 -07 30 35.5 V 703
2019-11-01 09:38:22 C 04 45 11.24 -07 30 48.3 V 703
2019-11-03 10:24:42 C 04 43 01.88 -08 55 03.3 V T05
2019-11-03 10:29:20 C 04 43 01.66 -08 55 11.3 V T05
2019-11-03 10:37:58 C 04 43 01.23 -08 55 26.2 V T05
2019-11-03 10:55:14 C 04 43 00.36 -08 55 56.5 V T05
2019-11-03 11:58:24 C 04 42 57.290 -08 57 45.44 U F51